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Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy or electrical energy for use in industry, and in the residential and commercial sectors. The first installation of solar thermal energy equipment occurred in the Sahara approximately in 1910 by Frank Shuman when a steam engine was run on steam produced by sunlight. Because liquid fuel engines were developed and found more convenient, the Sahara project was abandoned, only to be revisited several decades later.

Solar thermal collectors are classified by the United States Energy Information Administration as low-, medium-, or high-temperature collectors. Low-temperature collectors are flat plates generally used to heat swimming pools. Medium-temperature collectors are also usually flat plates but are used for heating water or air for residential and commercial use. High-temperature collectors concentrate sunlight using mirrors or lenses and are generally used for fulfilling heat requirements up to 300 deg C / 20 bar pressure in industries, and for electric power production. Two categories include Concentrated Solar Thermal (CST) for fulfilling heat requirements in industries, and Concentrated Solar Power (CSP) when the heat collected is used for power generation. CST and CSP are not replaceable in terms of application. The largest facilities are located in the American Mojave Desert of California and Nevada. These plants employ a variety of different technologies. The largest examples include, Ivanpah Solar Power Facility (377 MW), Solar Energy Generating Systems installation (354 MW), and Crescent Dunes (110 MW). Spain is the other major developer of solar thermal power plant. The largest examples include, Solnova Solar Power Station (150 MW), the Andasol solar power station (150 MW), and Extresol Solar Power Station (100 MW).

Low-temperature solar heating and cooling systems

Systems for utilizing low-temperature solar thermal energy include means for heat collection; usually heat storage, either short-term or interseasonal; and distribution within a structure or a district heating network. In some cases more than one of these functions is inherent to a single feature of the system (e.g. some kinds of solar collectors also store heat). Some systems are passive, others are active (requiring other external energy to function).

Heating is the most obvious application, but solar cooling can be achieved for a building or district cooling network by using a heat-driven absorption or adsorption chiller (heat pump). There is a productive coincidence that the greater the driving heat from insulation, the greater the cooling output. In 1878, Auguste Mouchout pioneered solar cooling by making ice using a solar steam engine attached to a refrigeration device.

In the United States, heating, ventilation, and air conditioning (HVAC) systems account for over 25% (4.75 EJ) of the energy used in commercial buildings and nearly half (10.1 EJ) of the energy used in residential buildings. Solar heating, cooling, and ventilation technologies can be used to offset a portion of this energy.

In Europe, since the mid-1990s about 125 large solar-thermal district heating

plants have been constructed, each with over 500 m2 (5400 ft2) of solar

collectors. The largest are about 10,000 m2, with capacities of 7

MW-thermal and solar heat costs around 4 Eurocents/kWh without subsidies.<ref

name="sdh">SDH (2011).

Supplying Renewable Zero-Emission Heat. The SDH Project, of Intelligent Energy Europe.</ref>

40 of them have nominal capacities of 1 MW-thermal or more. The Solar District Heating program (SDH) has participation from 14 European Nations and the European Commission, and is working toward technical and market development, and holds annual conferences.

Low-temperature collectors

Glazed solar collectors are designed primarily for space heating. They recirculate building air through a solar air panel where the air is heated and then directed back into the building. These solar space heating systems require at least two penetrations into the building and only perform when the air in the solar collector is warmer than the building room temperature. Most glazed collectors are used in the residential sector.

Unglazed solar collectors are primarily used to pre-heat make-up ventilation air in commercial, industrial and institutional buildings with a high ventilation load. They turn building walls or sections of walls into low cost, high performance, unglazed solar collectors. Also called, "transpired solar panels" or "solar wall", they employ a painted perforated metal solar heat absorber that also serves as the exterior wall surface of the building. Heat conducts from the absorber surface to the thermal boundary layer of air 1 mm thick on the outside of the absorber and to air that passes behind the absorber. The boundary layer of air is drawn into a nearby perforation before the heat can escape by convection to the outside air. The heated air is then drawn from behind the absorber plate into the building's ventilation system.

A Trombe wall is a passive solar heating and ventilation system consisting of an air channel sandwiched between a window and a sun-facing thermal mass. During the ventilation cycle, sunlight stores heat in the thermal mass and warms the air channel causing circulation through vents at the top and bottom of the wall. During the heating cycle the Trombe wall radiates stored heat.

Solar roof ponds are unique solar heating and cooling systems developed by Harold Hay in the 1960s. A basic system consists of a roof-mounted water bladder with a movable insulating cover. This system can control heat exchange between interior and exterior environments by covering and uncovering the bladder between night and day. When heating is a concern the bladder is uncovered during the day allowing sunlight to warm the water bladder and store heat for evening use. When cooling is a concern the covered bladder draws heat from the building's interior during the day and is uncovered at night to radiate heat to the cooler atmosphere. The Skytherm house in Atascadero, California uses a prototype roof pond for heating and cooling.

Solar space heating with solar air heat collectors is more popular in the USA and Canada than heating with solar liquid collectors since most buildings already have a ventilation system for heating and cooling. The two main types of solar air panels are glazed and unglazed.

Of the of solar thermal collectors produced in the United States in 2007, were of the low-temperature variety. Low-temperature collectors are generally installed to heat swimming pools, although they can also be used for space heating. Collectors can use air or water as the medium to transfer the heat to their destination.

Heat storage in low-temperature solar thermal systems

Interseasonal storage. Solar heat (or heat from other sources) can be effectively stored between opposing seasons aquifers, underground geological strata, large specially constructed pits, and large tanks that are insulated and covered with earth.

Short-term storage. Thermal mass materials store solar energy during the day and release this energy during cooler periods. Common thermal mass materials include stone, concrete, and water. The proportion and placement of thermal mass should consider several factors such as climate, daylighting, and shading conditions. When properly incorporated, thermal mass can passively maintain comfortable temperatures while reducing energy consumption.

Solar-driven cooling

Worldwide, by 2011 there were about 750 cooling systems with solar-driven heat pumps, and annual market growth was 40 to 70% over the prior seven years. It is a niche market because the economics are challenging, with the annual number of cooling hours a limiting factor. Respectively, the annual cooling hours are roughly 1000 in the Mediterranean, 2500 in Southeast Asia, and only 50 to 200 in Central Europe. However, system construction costs dropped about 50% between 2007 and 2011. The International Energy Agency (IEA) Solar Heating and Cooling program (IEA-SHC) task groups working on further development of the technologies involved. The International Energy Agency (IEA) Solar Heating and Cooling program (IEA-SHC) task groups working on further development of the technologies involved.

Solar heat-driven ventilation

A solar chimney (or thermal chimney) is a passive solar ventilation system composed of a hollow thermal mass connecting the interior and exterior of a building. As the chimney warms, the air inside is heated causing an updraft that pulls air through the building. These systems have been in use since Roman times and remain common in the Middle East.

Process heat

Solar process heating systems are designed to provide large quantities of hot water or space heating for nonresidential buildings.

Evaporation ponds are shallow ponds that concentrate dissolved solids through evaporation. The use of evaporation ponds to obtain salt from sea water is one of the oldest applications of solar energy. Modern uses include concentrating brine solutions used in leach mining and removing dissolved solids from waste streams. Altogether, evaporation ponds represent one of the largest commercial applications of solar energy in use today.

Unglazed transpired collectors are perforated sun-facing walls used for preheating ventilation air. Transpired collectors can also be roof mounted for year round use and can raise the incoming air temperature up to 22 °C and deliver outlet temperatures of 45-60 °C. The short payback period of transpired collectors (3 to 12 years) make them a more cost-effective alternative to glazed collection systems. As of 2015, over 4000 systems with a combined collector area of 500,000 m2 had been installed worldwide. Representatives include an 860 m2 collector in Costa Rica used for drying coffee beans and a 1300 m2 collector in Coimbatore, India used for drying marigolds.

A food processing facility in Modesto, California uses parabolic troughs to produce steam used in the manufacturing process. The 5,000 m2 collector area is expected to provide 15 TJ per year.

Medium-temperature collectors

These collectors could be used to produce approximately 50% and more of the hot water needed for residential and commercial use in the United States. In the United States, a typical system costs $4000–$6000 retail ($1400 to $2200 wholesale for the materials) and 30% of the system qualifies for a federal tax credit + additional state credit exists in about half of the states. Labor for a simple open loop system in southern climates can take 3–5 hours for the installation and 4–6 hours in Northern areas. Northern system require more collector area and more complex plumbing to protect the collector from freezing. With this incentive, the payback time for a typical household is four to nine years, depending on the state. Similar subsidies exist in parts of Europe. A crew of one solar plumber and two assistants with minimal training can install a system per day. Thermosiphon installation have negligible maintenance costs (costs rise if antifreeze and mains power are used for circulation) and in the US reduces a households' operating costs by $6 per person per month. Solar water heating can reduce CO2 emissions of a family of four by 1 ton/year (if replacing natural gas) or 3 ton/year (if replacing electricity). Medium-temperature installations can use any of several designs: common designs are pressurized glycol, drain back, batch systems and newer low pressure freeze tolerant systems using polymer pipes containing water with photovoltaic pumping. European and International standards are being reviewed to accommodate innovations in design and operation of medium temperature collectors. Operational innovations include "permanently wetted collector" operation. This innovation reduces or even eliminates the occurrence of no-flow high temperature stresses called stagnation which would otherwise reduce the life expectancy of collectors.

Solar drying

Solar thermal energy can be useful for drying wood for construction and wood fuels such as wood chips for combustion. Solar is also used for food products such as fruits, grains, and fish. Crop drying by solar means is environmentally friendly as well as cost effective while improving the quality. The less money it takes to make a product, the less it can be sold for, pleasing both the buyers and the sellers. Technologies in solar drying include ultra low cost pumped transpired plate air collectors based on black fabrics. Solar thermal energy is helpful in the process of drying products such as wood chips and other forms of biomass by raising the temperature while allowing air to pass through and get rid of the moisture.

Cooking

Solar cookers use sunlight for cooking, drying and pasteurization. Solar cooking offsets fuel costs, reduces demand for fuel or firewood, and improves air quality by reducing or removing a source of smoke.

The simplest type of solar cooker is the box cooker first built by Horace de Saussure in 1767. A basic box cooker consists of an insulated container with a transparent lid. These cookers can be used effectively with partially overcast skies and will typically reach temperatures of 50–100 °C.

Concentrating solar cookers use reflectors to concentrate solar energy onto a cooking container. The most common reflector geometries are flat plate, disc and parabolic trough type. These designs cook faster and at higher temperatures (up to 350 °C) but require direct light to function properly.

The Solar Kitchen in Auroville, India uses a unique concentrating technology known as the solar bowl. Contrary to conventional tracking reflector/fixed receiver systems, the solar bowl uses a fixed spherical reflector with a receiver which tracks the focus of light as the Sun moves across the sky. The solar bowl's receiver reaches temperature of 150 °C that is used to produce steam that helps cook 2,000 daily meals.

Many other solar kitchens in India use another unique concentrating technology known as the Scheffler reflector. This technology was first developed by Wolfgang Scheffler in 1986. A Scheffler reflector is a parabolic dish that uses single axis tracking to follow the Sun's daily course. These reflectors have a flexible reflective surface that is able to change its curvature to adjust to seasonal variations in the incident angle of sunlight. Scheffler reflectors have the advantage of having a fixed focal point which improves the ease of cooking and are able to reach temperatures of 450-650 °C. Built in 1999 by the Brahma Kumaris, the world's largest Scheffler reflector system in Abu Road, Rajasthan India is capable of cooking up to 35,000 meals a day. By early 2008, over 2000 large cookers of the Scheffler design had been built worldwide.

Distillation

Solar stills can be used to make drinking water in areas where clean water is not common. Solar distillation is necessary in these situations to provide people with purified water. Solar energy heats up the water in the still. The water then evaporates and condenses on the bottom of the covering glass.

High-temperature collectors

Where temperatures below about 95 °C are sufficient, as for space heating, flat-plate collectors of the nonconcentrating type are generally used. Because of the relatively high heat losses through the glazing, flat plate collectors will not reach temperatures much above 200 °C even when the heat transfer fluid is stagnant. Such temperatures are too low for efficient conversion to electricity.

The efficiency of heat engines increases with the temperature of the heat source. To achieve this in solar thermal energy plants, solar radiation is concentrated by mirrors or lenses to obtain higher temperatures – a technique called Concentrated Solar Power (CSP). The practical effect of high efficiencies is to reduce the plant's collector size and total land use per unit power generated, reducing the environmental impacts of a power plant as well as its expense.

As the temperature increases, different forms of conversion become practical. Up to 600 °C, steam turbines, standard technology, have an efficiency up to 41%. Above 600 °C, gas turbines can be more efficient. Higher temperatures are problematic because different materials and techniques are needed. One proposal for very high temperatures is to use liquid fluoride salts operating between 700 °C to 800 °C, using multi-stage turbine systems to achieve 50% or more thermal efficiencies. The higher operating temperatures permit the plant to use higher-temperature dry heat exchangers for its thermal exhaust, reducing the plant's water use – critical in the deserts where large solar plants are practical. High temperatures also make heat storage more efficient, because more watt-hours are stored per unit of fluid.

Commercial concentrating solar thermal power (CSP) plants were first developed in the 1980s. The world’s largest solar thermal power plants are now the 370 MW Ivanpah Solar Power Facility, commissioned in 2014, and the 354 MW SEGS CSP installation, both located in the Mojave Desert of California, where several other solar projects have been realized as well.

With the exception of the Shams solar power station, built in 2013 near Abu Dhabi, the United Arab Emirates, all other 100 MW or larger CSP plants are either located in the United States or in Spain.

The principal advantage of CSP is the ability to efficiently add thermal storage, allowing the dispatching of electricity over up to a 24-hour period. Since peak electricity demand typically occurs at about 5 pm, many CSP power plants use 3 to 5 hours of thermal storage. With current technology, storage of heat is much cheaper and more efficient than storage of electricity. In this way, the CSP plant can produce electricity day and night. If the CSP site has predictable solar radiation, then the CSP plant becomes a reliable power plant. Reliability can further be improved by installing a back-up combustion system. The back-up system can use most of the CSP plant, which decreases the cost of the back-up system.

CSP facilities utilize high electrical conductivity materials, such as copper, in field power cables, grounding networks, and motors for tracking and pumping fluids, as well as in the main generator and high voltage transformers. (See: Copper in concentrating solar thermal power facilities.)

With reliability, unused desert, no pollution, and no fuel costs, the obstacles for large deployment for CSP are cost, aesthetics, land use and similar factors for the necessary connecting high tension lines. Although only a small percentage of the desert is necessary to meet global electricity demand, still a large area must be covered with mirrors or lenses to obtain a significant amount of energy. An important way to decrease cost is the use of a simple design.

When considering land use impacts associated with the exploration and extraction through to transportation and conversion of fossil fuels, which are used for most of our electrical power, utility-scale solar power compares as one of the most land-efficient energy resources available:

The federal government has dedicated nearly 2,000 times more acreage to oil and gas leases than to solar development. In 2010 the Bureau of Land Management approved nine large-scale solar projects, with a total generating capacity of 3,682 megawatts, representing approximately 40,000 acres. In contrast, in 2010, the Bureau of Land Management processed more than 5,200 applications gas and oil leases, and issued 1,308 leases, for a total of 3.2 million acres. Currently, 38.2 million acres of onshore public lands and an additional 36.9 million acres of offshore exploration in the Gulf of Mexico are under lease for oil and gas development, exploration and production.

System designs

During the day the sun has different positions. For low concentration systems (and low temperatures) tracking can be avoided (or limited to a few positions per year) if nonimaging optics are used. For higher concentrations, however, if the mirrors or lenses do not move, then the focus of the mirrors or lenses changes (but also in these cases nonimaging optics provides the widest acceptance angles for a given concentration). Therefore, it seems unavoidable that there needs to be a tracking system that follows the position of the sun (for solar photovoltaic a solar tracker is only optional). The tracking system increases the cost and complexity. With this in mind, different designs can be distinguished in how they concentrate the light and track the position of the sun.

Parabolic trough designs

Parabolic trough power plants use a curved, mirrored trough which reflects the direct solar radiation onto a glass tube containing a fluid (also called a receiver, absorber or collector) running the length of the trough, positioned at the focal point of the reflectors. The trough is parabolic along one axis and linear in the orthogonal axis. For change of the daily position of the sun perpendicular to the receiver, the trough tilts east to west so that the direct radiation remains focused on the receiver. However, seasonal changes in the angle of sunlight parallel to the trough does not require adjustment of the mirrors, since the light is simply concentrated elsewhere on the receiver. Thus the trough design does not require tracking on a second axis. The receiver may be enclosed in a glass vacuum chamber. The vacuum significantly reduces convective heat loss.

A fluid (also called heat transfer fluid) passes through the receiver and becomes very hot. Common fluids are synthetic oil, molten salt and pressurized steam. The fluid containing the heat is transported to a heat engine where about a third of the heat is converted to electricity.

Full-scale parabolic trough systems consist of many such troughs laid out in parallel over a large area of land. Since 1985 a solar thermal system using this principle has been in full operation in California in the United States. It is called the Solar Energy Generating Systems (SEGS) system. Other CSP designs lack this kind of long experience and therefore it can currently be said that the parabolic trough design is the most thoroughly proven CSP technology.

The SEGS is a collection of nine plants with a total capacity of 354 MW and has been the world's largest solar power plant, both thermal and non-thermal, for many years. A newer plant is Nevada Solar One plant with a capacity of 64 MW. The 150 MW Andasol solar power stations are in Spain with each site having a capacity of 50 MW. Note however, that those plants have heat storage which requires a larger field of solar collectors relative to the size of the steam turbine-generator to store heat and send heat to the steam turbine at the same time. Heat storage enables better utilization of the steam turbine. With day and some nighttime operation of the steam-turbine Andasol 1 at 50 MW peak capacity produces more energy than Nevada Solar One at 64 MW peak capacity, due to the former plant's thermal energy storage system and larger solar field. The 280MW Solana Generating Station came online in Arizona in 2013 with 6 hours of power storage. Hassi R'Mel integrated solar combined cycle power station in Algeria and Martin Next Generation Solar Energy Center both use parabolic troughs in a combined cycle with natural gas.

Enclosed trough

The enclosed trough architecture encapsulates the solar thermal system within a greenhouse-like glasshouse. The
glasshouse creates a protected environment to withstand the elements that can negatively impact reliability and efficiency of the solar thermal system.

Lightweight curved solar-reflecting mirrors are suspended within the glasshouse structure. A single-axis tracking system positions the mirrors to track the sun and focus its light onto a network of stationary steel pipes, also suspended from the glasshouse structure. Steam is generated directly using, oil field-quality water, as water flows from the inlet throughout the length of the pipes, without heat exchangers or intermediate working fluids.

The steam produced is then fed directly to the field’s existing steam distribution network, where the steam is continuously injected deep into the oil reservoir. Sheltering the mirrors from the wind allows them to achieve higher temperature rates and prevents dust from building up as a result from exposure to humidity.
GlassPoint Solar, the company that created the Enclosed Trough method, states its technology can produce heat for EOR for about $5 per million British thermal units in sunny regions, compared to between $10 and $12 for other conventional solar thermal technologies.

Power tower designs

Power towers (also known as 'central tower' power plants or 'heliostat' power plants) capture and focus the sun's thermal energy with thousands of tracking mirrors (called heliostats) in roughly a two square mile field. A tower resides in the center of the heliostat field. The heliostats focus concentrated sunlight on a receiver which sits on top of the tower. Within the receiver the concentrated sunlight heats molten salt to over . The heated molten salt then flows into a thermal storage tank where it is stored, maintaining 98% thermal efficiency, and eventually pumped to a steam generator. The steam drives a standard turbine to generate electricity. This process, also known as the "Rankine cycle" is similar to a standard coal-fired power plant, except it is fueled by clean and free solar energy.

The advantage of this design above the parabolic trough design is the higher temperature. Thermal energy at higher temperatures can be converted to electricity more efficiently and can be more cheaply stored for later use. Furthermore, there is less need to flatten the ground area. In principle a power tower can be built on the side of a hill. Mirrors can be flat and plumbing is concentrated in the tower. The disadvantage is that each mirror must have its own dual-axis control, while in the parabolic trough design single axis tracking can be shared for a large array of mirrors.

A cost/performance comparison between power tower and parabolic trough concentrators was made by the NREL which estimated that by 2020 electricity could be produced from power towers for 5.47 ¢/kWh and for 6.21 ¢/kWh from parabolic troughs. The capacity factor for power towers was estimated to be 72.9% and 56.2% for parabolic troughs. There is some hope that the development of cheap, durable, mass producible heliostat power plant components could bring this cost down.

The first commercial tower power plant was PS10 in Spain with a capacity of 11 MW, completed in 2007. Since then a number of plants have been proposed, several have been built on a number of countries (Spain, Germany, U.S., Turkey, China, India) but several proposed plants were cancelled as photovoltaic solar prices plummeted. A solar power tower is expected to come online in South Africa in 2014. Ivanpah Solar Power Facility in California generates 392 MW of electricity from three towers, making it the largest solar power tower plant when it came online in late 2013.

Dish designs

CSP-Stirling is known to have the highest efficiency of all solar technologies (around 30%, compared to solar photovoltaic's approximately 15%), and is predicted to be able to produce the cheapest energy among all renewable energy sources in high-scale production and hot areas, semi-deserts, etc. A dish Stirling system uses a large, reflective, parabolic dish (similar in shape to a satellite television dish). It focuses all the sunlight that strikes the dish up onto a single point above the dish, where a receiver captures the heat and transforms it into a useful form. Typically the dish is coupled with a Stirling engine in a Dish-Stirling System, but also sometimes a steam engine is used. These create rotational kinetic energy that can be converted to electricity using an electric generator.

In 2005 Southern California Edison announced an agreement to purchase solar powered Stirling engines from Stirling Energy Systems over a twenty-year period and in quantities (20,000 units) sufficient to generate 500 megawatts of electricity. In January 2010, Stirling Energy Systems and Tessera Solar commissioned the first demonstration 1.5-megawatt power plant ("Maricopa Solar") using Stirling technology in Peoria, Arizona. At the beginning of 2011 Stirling Energy's development arm, Tessera Solar, sold off its two large projects, the 709 MW Imperial project and the 850 MW Calico project to AES Solar and K.Road, respectively. In 2012 the Maricopa plant was bought and dismantled by United Sun Systems. United Sun Systems released a new generation system, based on a V-shaped Stirling engine and a peak production of 33 kW. The new CSP-Stirling technology brings down LCOE to USD 0.02 in utility scale.

According to its developer, Rispasso Energy, a Swedish firm, in 2015 its Dish Sterling system being tested in the Kalahari Desert in South Africa showed 34% efficiency.

Fresnel technologies

A linear Fresnel reflector power plant uses a series of long, narrow, shallow-curvature (or even flat) mirrors to focus light onto one or more linear receivers positioned above the mirrors. On top of the receiver a small parabolic mirror can be attached for further focusing the light. These systems aim to offer lower overall costs by sharing a receiver between several mirrors (as compared with trough and dish concepts), while still using the simple line-focus geometry with one axis for tracking. This is similar to the trough design (and different from central towers and dishes with dual-axis). The receiver is stationary and so fluid couplings are not required (as in troughs and dishes). The mirrors also do not need to support the receiver, so they are structurally simpler. When suitable aiming strategies are used (mirrors aimed at different receivers at different times of day), this can allow a denser packing of mirrors on available land area.

Rival single axis tracking technologies include the relatively new linear Fresnel reflector (LFR) and compact-LFR (CLFR) technologies. The LFR differs from that of the parabolic trough in that the absorber is fixed in space above the mirror field. Also, the reflector is composed of many low row segments, which focus collectively on an elevated long tower receiver running parallel to the reflector rotational axis.

Prototypes of Fresnel lens concentrators have been produced for the collection of thermal energy by International Automated Systems. No full-scale thermal systems using Fresnel lenses are known to be in operation, although products incorporating Fresnel lenses in conjunction with photovoltaic cells are already available.

MicroCSP

MicroCSP is used for community-sized power plants (1 MW to 50 MW), for industrial, agricultural and manufacturing 'process heat' applications, and when large amounts of hot water are needed, such as resort swimming pools, water parks, large laundry facilities, sterilization, distillation and other such uses.

Enclosed parabolic trough

The enclosed parabolic trough solar thermal system encapsulates the components within an off-the-shelf greenhouse type of glasshouse. The glasshouse protects the components from the elements that can negatively impact system reliability and efficiency. This protection importantly includes nightly glass-roof washing with optimized water-efficient off-the-shelf automated washing systems. Lightweight curved solar-reflecting mirrors are suspended from the ceiling of the glasshouse by wires. A single-axis tracking system positions the mirrors to retrieve the optimal amount of sunlight. The mirrors concentrate the sunlight and focus it on a network of stationary steel pipes, also suspended from the glasshouse structure. Water is pumped through the pipes and boiled to generate steam when intense sun radiation is applied. The steam is available for process heat. Sheltering the mirrors from the wind allows them to achieve higher temperature rates and prevents dust from building up on the mirrors as a result from exposure to humidity.

Heat collection and exchange

More energy is contained in higher frequency light based upon the formula of , where h is the Planck constant and is frequency. Metal collectors down convert higher frequency light by producing a series of Compton shifts into an abundance of lower frequency light. Glass or ceramic coatings with high transmission in the visible and UV and effective absorption in the IR (heat blocking) trap metal absorbed low frequency light from radiation loss. Convection insulation prevents mechanical losses transferred through gas. Once collected as heat, thermos containment efficiency improves significantly with increased size. Unlike Photovoltaic technologies that often degrade under concentrated light, Solar Thermal depends upon light concentration that requires a clear sky to reach suitable temperatures.

Heat in a solar thermal system is guided by five basic principles: heat gain; heat transfer; heat storage; heat transport; and heat insulation. Here, heat is the measure of the amount of thermal energy an object contains and is determined by the temperature, mass and specific heat of the object. Solar thermal power plants use heat exchangers that are designed for constant working conditions, to provide heat exchange. Copper heat exchangers are important in solar thermal heating and cooling systems because of copper’s high thermal conductivity, resistance to atmospheric and water corrosion, sealing and joining by soldering, and mechanical strength. Copper is used both in receivers and in primary circuits (pipes and heat exchangers for water tanks) of solar thermal water systems.

Heat gain is the heat accumulated from the sun in the system. Solar thermal heat is trapped using the greenhouse effect; the greenhouse effect in this case is the ability of a reflective surface to transmit short wave radiation and reflect long wave radiation. Heat and infrared radiation (IR) are produced when short wave radiation light hits the absorber plate, which is then trapped inside the collector. Fluid, usually water, in the absorber tubes collect the trapped heat and transfer it to a heat storage vault.

Heat is transferred either by conduction or convection. When water is heated, kinetic energy is transferred by conduction to water molecules throughout the medium. These molecules spread their thermal energy by conduction and occupy more space than the cold slow moving molecules above them. The distribution of energy from the rising hot water to the sinking cold water contributes to the convection process. Heat is transferred from the absorber plates of the collector in the fluid by conduction. The collector fluid is circulated through the carrier pipes to the heat transfer vault. Inside the vault, heat is transferred throughout the medium through convection.

Heat storage enables solar thermal plants to produce electricity during hours without sunlight. Heat is transferred to a thermal storage medium in an insulated reservoir during hours with sunlight, and is withdrawn for power generation during hours lacking sunlight. Thermal storage mediums will be discussed in a heat storage section. Rate of heat transfer is related to the conductive and convection medium as well as the temperature differences. Bodies with large temperature differences transfer heat faster than bodies with lower temperature differences.

Heat transport refers to the activity in which heat from a solar collector is transported to the heat storage vault. Heat insulation is vital in both heat transport tubing as well as the storage vault. It prevents heat loss, which in turn relates to energy loss, or decrease in the efficiency of the system.

Heat storage for space heating

A collection of mature technologies called seasonal thermal energy storage (STES) is capable of storing heat for months at a time, so solar heat collected primarily in Summer can be used for all-year heating. Solar-supplied STES technology has been advanced primarily in Denmark, Germany, and Canada, and applications include individual buildings and district heating networks. Drake Landing Solar Community in Alberta, Canada has a small district system and in 2012 achieved a world record of providing 97% of the a community's all-year space heating needs from the sun. STES thermal storage mediums include deep aquifers; native rock surrounding clusters of small-diameter, heat exchanger equipped boreholes; large, shallow, lined pits that are filled with gravel and top-insulated; and large, insulated and buried surface water tanks.

Heat storage to stabilize solar-electric power generation

Heat storage allows a solar thermal plant to produce electricity at night and on overcast days. This allows the use of solar power for baseload generation as well as peak power generation, with the potential of displacing both coal- and natural gas-fired power plants. Additionally, the utilization of the generator is higher which reduces cost.

Heat is transferred to a thermal storage medium in an insulated reservoir during the day, and withdrawn for power generation at night. Thermal storage media include pressurized steam, concrete, a variety of phase change materials, and molten salts such as calcium, sodium and potassium nitrate.

Steam accumulator

The PS10 solar power tower stores heat in tanks as pressurized steam at 50 bar and 285 °C. The steam condenses and flashes back to steam, when pressure is lowered. Storage is for one hour. It is suggested that longer storage is possible, but that has not been proven yet in an existing power plant.

Molten salt storage

A variety of fluids have been tested to transport the sun's heat, including water, air, oil, and sodium, but Rockwell International selected molten salt as best. Molten salt is used in solar power tower systems because it is liquid at atmospheric pressure, provides a low-cost medium to store thermal energy, its operating temperatures are compatible with today's steam turbines, and it is non-flammable and nontoxic. Molten salt is used in the chemical and metals industries to transport heat, so industry has experience with it.

The first commercial molten salt mixture was a common form of saltpeter, 60% sodium nitrate and 40% potassium nitrate. Saltpeter melts at 220 °C (430 °F) and is kept liquid at 290 °C (550 °F) in an insulated storage tank. Calcium nitrate can reduce the melting point to 131 °C, permitting more energy to be extracted before the salt freezes. There are now several technical calcium nitrate grades stable at more than 500 °C.

This solar power system can generate power in cloudy weather or at night using the heat in the tank of hot salt. The tanks are insulated, able to store heat for a week. Tanks that power a 100-megawatt turbine for four hours would be about 9 m (30 ft) tall and 24 m (80 ft) in diameter.

The Andasol power plant in Spain is the first commercial solar thermal power plant using molten salt for heat storage and nighttime generation. It came on line March 2009. On July 4, 2011, a company in Spain celebrated an historic moment for the solar industry: Torresol’s 19.9 MW concentrating solar power plant became the first ever to generate uninterrupted electricity for 24 hours straight, using a molten salt heat storage.

Phase-change materials for storage

Phase Change Material (PCMs) offer an alternative solution in energy storage. Using a similar heat transfer infrastructure, PCMs have the potential of providing a more efficient means of storage. PCMs can be either organic or inorganic materials. Advantages of organic PCMs include no corrosives, low or no undercooling, and chemical and thermal stability. Disadvantages include low phase-change enthalpy, low thermal conductivity, and flammability. Inorganics are advantageous with greater phase-change enthalpy, but exhibit disadvantages with undercooling, corrosion, phase separation, and lack of thermal stability. The greater phase-change enthalpy in inorganic PCMs make hydrate salts a strong candidate in the solar energy storage field.

Use of water

A design which requires water for condensation or cooling may conflict with location of solar thermal plants in desert areas with good solar radiation but limited water resources. The conflict is illustrated by plans of Solar Millennium, a German company, to build a plant in the Amargosa Valley of Nevada which would require 20% of the water available in the area. Some other projected plants by the same and other companies in the Mojave Desert of California may also be affected by difficulty in obtaining adequate and appropriate water rights. California water law currently prohibits use of potable water for cooling.

Other designs require less water. The Ivanpah Solar Power Facility in south-eastern California conserves scarce desert water by using air-cooling to convert the steam back into water. Compared to conventional wet-cooling, this results in a 90% reduction in water usage at the cost of some loss of efficiency. The water is then returned to the boiler in a closed process which is environmentally friendly.

Conversion rates from solar energy to electrical energy

Of all of these technologies the solar dish/Stirling engine has the highest energy efficiency. A single solar dish-Stirling engine installed at Sandia National Laboratories National Solar Thermal Test Facility (NSTTF) produces as much as 25 kW of electricity, with a conversion efficiency of 31.25%.

Solar parabolic trough plants have been built with efficiencies of about 20%. Fresnel reflectors have an efficiency that is slightly lower (but this is compensated by the denser packing).

The gross conversion efficiencies (taking into account that the solar dishes or troughs occupy only a fraction of the total area of the power plant) are determined by net generating capacity over the solar energy that falls on the total area of the solar plant. The 500-megawatt (MW) SCE/SES plant would extract about 2.75% of the radiation (1 kW/m²; see Solar power for a discussion) that falls on its 4,500 acres (18.2 km²). For the 50 MW AndaSol Power Plant that is being built in Spain (total area of 1,300×1,500 m = 1.95 km²) gross conversion efficiency comes out at 2.6%.

Furthermore, efficiency does not directly relate to cost: on calculating total cost, both efficiency and the cost of construction and maintenance should be taken into account.

Standards

EN 12975 (efficiency test)

See also Central solar heating Energy tower (downdraft) EnerWorks

List of solar thermal power stations

Ocean thermal energy conversion

Photovoltaic thermal hybrid solar collector

Solar power plants in the Mojave Desert

Solar tracker Solar updraft tower SolarPACES Notes References External links

It's solar power's time to shine MSN Money

World's Largest Solar Thermal in Saudi Arabia

Onsite Renewable Technologies at United States Environmental Protection Agency website

Science/Technology/Energy/Renewable/Solar

Assessment of the World Bank/GEF Strategy for the Market Development of Concentrating Solar Thermal Power

Solar thermal energy calculator

Concentrating Solar Power An overview of the technology by Gerry Wolff, coordinator of TREC-UK

NREL Concentrating Solar Power Program Site

Comprehensive review of parabolic trough technology and markets

Nevada Gets First U.S. Solar Thermal Plant

Solar thermal and concentrated solar power barometer - 2013 Pdf

Solar Water Heating TechScope Market Readiness Assessment Report - UNEP

Guide for Solar Heating and Cooling Awareness-Raising Campaigns - UNEP

Guidelines for Standardization and Quality Assurance for Solar Thermal - UNEP

Guidelines for Solar Water Heating and Cooling Policy and Framework Conditions - UNEP

Solar Water Heating, a Strategic Planning Guide for Cities in Developing Countries - UNEP

Source:

SJV SPE News San Joaquin Valley Section Society of Petroleum Engineers Issue 321 November 2014 General Section Meeting 2 From the Chair 3 Subsurface Study 4 October Lookback 5 SPE Board Information 7 Petrowiki (Solar EOR) 8 Courses 10 Advertisements 17 Inside this issue: Editor & Asst. Editor: Mojtaba Ardali Mojtaba_Ardali@Oxy.com David Susko david.susko@bakerhughes.com Visit our website http://connect.spe.org/SJV/

November 17, 2014 General Section Meeting Distinguished Lecturer Topic: The Science and Engineering of Internal Corrosion Control in the Upstream Petro-leum Industry—Mainly About Managing Water Speaker: Mohsen Achour, ConocoPhillips Date: Monday, November 17, 2014 @ 11:30 AM Location: The Petroleum Club, 12th Floor, 5060 California Avenue, Bakersfield Cost: With online payment or RSVP: $25 members, $30 non-members Walk-ins: $30 members, $35 non-members Reservations: RSVP by Friday morning November 14th, using one of the three options: Using the corresponding link below to pay online using your Visa, MasterCard, American Express, Discover or PayPal ac-count: PayPal Link for SPE Members - $25 PayPal Link for SPE Non-Members - $30 OR if the above links don’t work copy these links in your browser’s address box Members https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5T5S5WCV93CNU Non-Members https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=S7GABLKETWX32 OR Email Pamela Willis at PTWillis@aeraenergy.com or call Call (661) 665-5449 Walk-ins and attendees with email/phone RSVP must pay by cash at the door. Credit cards accepted at the door. RSVP no shows may be billed. ABSTRACT Unsuccessful control of internal corrosion has historical(cid:173)ly caused catastrophic incidents in the upstream petroleum industry. Corrosion control requires a synergy between a sound basis of design and an appropriate operability philoso(cid:173)phy. Equipment used in upstream operations may include cas(cid:173)ing, production tubings, risers, flowlines, pipelines, and facili(cid:173)ties. Corrosion control related decisions made at design level and guidelines set for operations will always be driven by water management. Guidelines to control corrosion are strongly based on water quality and movement within the equipment and the process. While corrosion prediction and mitigation involve thorough understanding and application of scientif(cid:173)ic concepts of water chemistry, flow dynamics, and transport phenomena, corrosion monitoring and inspection requires sound engineering prac-tices to track water, monitor changes and meet internal and external requirements. The success of corrosion control pro-grams is also strongly affected by the level of collaboration and integration within the asset integrity and operation teams. SPEAKER Mohsen Achour is leading the corrosion, inspection, and materials group of the Glob(cid:173)al Production Excellence Division of Cono(cid:173)coPhillips. He holds a PhD degree in chemi(cid:173)cal engineering and materials from Oklaho(cid:173)ma State University and an ad-junct profes(cid:173)sor honorary title from Ohio University Institute of Corrosion and Multiphase Technology Center. Achour has pub-lished more than 60 technical papers and holds patents in the areas of transport phenomena and corrosion. Page 2 SJV SPE News

Page 3 SJV SPE News From the Chair, Blythe Johnson, Chevron BlytheJohnson@Chevron.com Dear Members Thanksgiving is coming up. During this time everyone is usually busy spending time with family and friends, and of course preparing the fabulous Thanksgiving feast. There is a lot of information about Thanksgiving Safety out there and I would like to share a few of those safety tips. One of my favorite videos on the turkey fryer safety is William Shatner’s “Eat, Fry, Love”. You can find it on youtube. Safety tips for a Safe Thanksgiving:  Stay in the kitchen when you are cooking and check on the food frequently.  Keep children away from the stove (plan activities for the kids that keep them out of the kitchen)  Keep the floor clear so you don’t have tripping hazards  Make sure your smoke alarms are working.  Be sure to keep a fire extinguisher in the kitchen in case of emergency, and teach your family how to use it SPE News for November There are several conferences and workshops being held this month:  SPE Thermal Well Design and Integrity in Banff, Alberta on November 18-20, 2014. http://www.spe.org/events/14abn4/  SPE Petroleum Data-Driven Analytics: Decision Making and Value Delivery in Galveston, TX on November 19-20, 2014. http://www.spe.org/events/14agal/  SPE Well Integrity Workshop in Tuxtla Gutiérrez, Mexico on November 20-21, 2014. http://www.spe.org/events/14atux/  SPE HSSE-SR: Beyond Conventional Oil & Gas: New Social Opportunities and Risks Workshop in Banff, Alberta on December 2-3, 2014. http://www.spe.org/events/14abn5/  SPE Southern Extension of the Eagle Ford Shale: A Cross-border Collaboration Workshop in Corpus Christi, TX on December 2-3, 2014. http://www.spe.org/events/14acor/ Sincerely Your SJV SPE 2014-2015 Chair, Blythe Johnson

Thursday November 13th, 2014, Sub-Surface Study Group Meeting Topic: Monterey Shale Exploitation - A Five Year Look Back Speaker: Alan A. Burzlaff Date: Thursday, November, 13th, 2014 @ 11:30 AM Location: The Petroleum Club, 12th Floor, 5060 California Avenue, Bakersfield Cost: With online payment or RSVP: $25 members, $30 non-members Walk-ins: $30 members, $35 non-members Reservations: RSVP by Tuesday morning November 11th , using one of the three options: Using the corresponding link below to pay online using your Visa, MasterCard, American Express, Discover or PayPal ac-count: Members https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=PY9C5CF4XHVHJ Non-Members https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=TNPYJ987LGNKE OR Email Indar Singh at isingh@aeraenergy.com OR Call (661) 665-5243 Walk-ins and attendees with email/phone RSVP must pay by cash at the door. RSVP no shows may be billed. ABSTRACT: The race to tap the potential of the California Monterey Shale Formation as an unconventional oil play similar to the Bakken and Niobrara formations in the Rockies escalated in 2011 after the U.S. Energy Information Agency (EIA) estimated 15 bil-lion barrels of technically recoverable shale oil trapped in the Monterey Shale. Now, it is down to 600 million barrels. In May 2014, EIA cut its estimated amount of recoverable oil from the Monterey Shale by 96 percent. What happened? The oil is still there but it has turned out to be harder to get out of the ground than expected. This presentation may help explain the current situation in the Monterey Shale exploitation by presenting a five-year look back of the production results for the renewed industry drilling campaign targeting unconventional oil reservoirs in the Mon-terey. Relying on public records, this lecture presents statistical information on the number of wells, Initial Productivity (IP), gas-oil ratio, water cut, and Expected Ultimate Recovery (EUR) for the onshore Monterey drilling activity during 2009–13 in the San Joaquin Valley of central California. Key fields include Rose, North Shafter, Asphalto, Railroad Gap, Buena Vista and Monument Junction fields. The production and reserves statistics are useful and informative to those interested in the pro-ductivity, economics and successful exploitation of the Monterey. SPEAKER: ALAN A. BURZLAFF is Vice-President and Managing Partner for MHA Petroleum Consultants, LLC. He manages the MHA office in Bakersfield, California. His consulting expertise includes reservoir engineering, numerical simulation, reserves re-porting, thermal recovery studies and property evaluation. He has authored SPE technical papers dealing with waterflood-ing, steamflood simulation and unconventional oil exploitation, most recently at the 2014 Western North America and Rocky Mountain Joint Conference and Exhibition. Mr. Burzlaff is a Licensed Professional Petroleum Engineer in the State of California and SPE member. He holds a BSc degree in Engineering Physics from the Colorado School of Mines. Page 4 SJV SPE News

Page 5 SJV SPE News LOOKBACK for October 2014

Page 6 SJV SPE News LOOKBACK for October 2014 Left -Cristian Garcia, Chair of SJV SPE Student Chapter, Right –Tom Hampton, Aera Energy LLC Senior Staff Reservoir Engineer.On September 25, Tom Hampton, Community Outreach, SPE Board member spoke to CSUB SJV SPE Student Chapter –Kick Off meeting about the benefits of belonging to SPE and how to utilize SPE to help their career. There were over 50+ students in attendance. They had a great kick off start for their year! They have great leadership and great SPE members.Tom Hampton, Community Outreach, SPE Board member speaking on Petroleum Engineering to CSUB ENGR 160 Orientation to Engineering, Professor Yiannis Ampatzidis, on October 3. 2-14

POSITION NAME COMPANY PHONE E-MAIL Section Chair Blythe Johnson Chevron (661) 281-5713 BlytheJohnson@chevron.com Program Pamela Willis Aera Energy LLC (661) 869-5790 PTWillis@aeraenergy.com Membership Tara Butler Enova Solutions (661) 327-2405 Tbutler@enovaes.com Secretary Jeff Kim Oxy Inc. (661) 412-5507 Jeff_kim@oxy.com Treasurer Keith Kostelnik Vintage Production Calif. (661) 412-5580 Keith_Kostelnik@oxy.com Surface Study Group Sub-Surface Study Group Indar Singh Aera Energy LLC (661) 665-5243 ISingh@aeraenergy.com Newsletter Editor Mojtaba (Reza) Ardali Oxy Inc. (661) 412-5536 Mojtaba_Ardali@oxy.com Newsletter Co-Editor David Susko Baker Hughes (661) 336-3408 David.Susko@bakerhughes.com Website Administration Continuing Education Program Craig Pauley Chevron (661) 391 4360 CraigPauley@chevron.com Continuing Education Arrangements Rakesh Trehan Oxy Inc. (661) 412-5486 Rakesh_Trehan@oxy.com Activities Matthew Merrimer Chevron (661) 448-84015 mminemier@chevron.com Community Outreach Education Tom Hampton Aera Energy LLC (661) 665-5227 TJHampton@aeraenergy.com Young Professionals Liaison Cenk Temizel Aera Energy LLC CTemizel@aeraenergy.com Award Nominations Jesse Frederick WZI Inc. (661) 326-1112 jfrdrck@wziinc.com Western NA Regional Director Tom Walsh Petrotechnical Resources (907) 230-9840 twalsh@petroak.com Student Chapter Faculty Advisor Dayanand Saini CSUB (661) 654-2661 dsaini@csub.edu Student Chapter President Cristian Garcia CSUB (661) 802-3058 csub.spe@outlook.com SJV SPE Board of Directors 2013- 2014 Page 7 SJV SPE News

Top 5 associated gas producing fields in California (DOGGR, 2013) Page 8 SJV SPE News PetroWiki Page of the Month Solar EOR Solar enhanced oil recovery, or solar EOR, is a form of thermal enhanced oil recovery (EOR), a technique applied by oil pro-ducers to extract more oil from maturing oil fields. Solar EOR uses CSP to use the sun’s energy to heat water and generate steam. The steam is injected into an oil reservoir to reduce the viscosity, or thin, heavy crude thus facilitating its flow to the surface. Thermal recovery processes, also known as steam injection, have traditionally burned natural gas to produce steam. Solar EOR is proving to be a viable alternative to gas-fired steam production for the oil industry. Solar EOR can gen-erate the same quality steam as natural gas, reaching temperatures up to 750˚F (400˚C) and 2,500 PSI. Types Central tower Originally designed electricity generation, central tower, or power tower technology, uses a field of large tracking mirrors, called heliostats, to concentrate the sunlight on a boiler filled with water that rests on a central tower. The sun’s energy is reflected on the boiler to produce steam, which is used to turn a traditional turbine and create electricity. For EOR, the proc-ess ends at steam production. High-temperature steam made from demineralized water in the tower receiver passes through a heat exchanger, generating lower temperature steam from high-contamination oilfield feedwater. The steam is then fed into distribution headers which lead to injection wells, conveying steam into the oil-bearing formation. Enclosed trough The enclosed trough architecture encapsulates the solar thermal system within a greenhouse-like glasshouse. The glass-house creates a protected environment to withstand the elements that can negatively impact reliability and efficiency of the solar thermal system. Lightweight curved solar-reflecting mirrors are suspended within the glasshouse structure. A single-axis tracking system positions the mirrors to track the sun and focus its light onto a network of stationary steel pipes, also suspended from the glasshouse structure. Steam is generated directly using, oil field-quality water, as water flows from the inlet throughout the length of the pipes, without heat exchangers or intermediate working fluids. The steam produced is then fed directly to the field’s existing steam distribution network, where the steam is continuously injected deep into the oil reservoir. Sheltering the mirrors from the wind allows them to achieve higher temperature rates and prevents dust from building up as a result from exposure to humidity. The company states its technology can produce heat for EOR for about $5 per million British thermal units in sunny regions, compared to between $10 and $12 for other conventional solar thermal technologies Purpose The global market for EOR technologies was $4.7 billion in 2009 and is expected to grow at a 5-year compound annual rate of 28 percent, reaching $16.3 billion in 2014. While quickly gaining traction, it is predicated solar EOR will have minimal impact on the market till 2015. As solar EOR scales up, oil producers will consume less gas for oil production. According to research analysts at Raymond James, solar EOR can be done more cost effectively than using gas, even as current depressed prices. Steam represents as much as 60 percent of the production cost for heavily oil extraction. In addi-tion to being cost competitive with gas, solar EOR provides a hedge against long-term gas price escalation. Long-term price projections put natural gas at $5.00/Mcf, considerably higher than the 2011 forecast of $3.75/Mcf. When an oil producer invests in a solar EOR system, all costs are upfront and the standard life of the equipment is 30 years. Continued on Next Page

Top 5 associated gas producing fields in California (DOGGR, 2013) Page 9 SJV SPE News Market The global market for EOR technologies was $4.7 billion in 2009 and is expected to grow at a 5-year compound an-nual rate of 28 percent, reaching $16.3 billion in 2014. While quickly gaining traction, it is predicated solar EOR will have minimal impact on the market till 2015. As solar EOR scales up, oil producers will consume less gas for oil pro-duction. According to research analysts at Raymond James, solar EOR can be done more cost effectively than using gas, even as current depressed prices. Steam represents as much as 60 percent of the production cost for heavily oil extraction. In addition to being cost competitive with gas, solar EOR provides a hedge against long-term gas price escalation. Long-term price projections put natural gas at $5.00/Mcf, considerably higher than the 2011 forecast of $3.75/Mcf. When an oil producer invests in a solar EOR system, all costs are upfront and the standard life of the equipment is 30 years. Projects 21Z in McKittrick, California GlassPoint Solar partnered with Berry Petroleum, California’s largest independent oil producer, to deploy the world’s first commercial solar EOR project. Commissioned in February 2011, the project is located on a 100-year old McKit-trick Oil Field in McKittrick, California. Coined the Kern County 21Z Solar Project, the system spans roughly one acre and will produce approximately one million Btus per hour of solar heat, replacing natural gas used for steam genera-tion. The solar EOR project was constructed in less than six weeks and is the first installation of GlassPoint's enclosed trough technology in an oil field. Coalinga in Coalinga, California In October 2011, Chevron Corp. and BrightSource Energy revealed a 29-megawatt solar- to-steam facility at the Coa-linga Oil Field in Fresno County, California. The Coalinga solar EOR project spans 100 acres and consists of 3,822 mir-ror systems, or heliostats, each with two 10-foot (3-meter) by 7-foot mirrors mounted on a 6-foot steel pole focusing light on a 327-foot solar tower. BrightSource was contracted to provide the technology, engineering and production and construction services, and Chevron Technology Ventures will manage operations of the project. The facility began construction in 2009. It was reported that Chevron spent more than its $28 million on the contract, and BrightSource has lost at least $40 million on the project and disclosed it will lose much more. Petroleum Development Oman In May 2013, GlassPoint Solar and Petroleum Development Oman (PDO) commissioned the Middle East's first solar EOR project.PDO is a joint venture between the Sultanate of Oman, Shell and Total. The 7 MW solar EOR facility pro-duces a daily average of 50 tons of emissions-free steam that feeds directly into existing thermal EOR operations at PDO's Amal West field in Southern Oman. The system in 27 times larger than GlassPoint's first installation at Berry Petroleum's 21Z oil field. Reports by Petroleum Development Oman indicate that the pilot was delivered on-time, under-budget, and above contract output specifications, with zero lost time injuries. In the first year of operations, the fully automated system successfully exceeded all performance tests and production targets. The system recorded a 98.6% uptime, significantly exceeding PDO’s expectations. Even during severe dust and sandstorms, the system has proven to maintain regular operations. Fore more information refer to: http://petrowiki.org/Solar_EOR

Page 10 SJV SPE News An Overview of Heavy Oil Recovery Instructor: Dr. Behrooz Fattahi Date: February 10th, 2015 (8:00 am to 5:00 pm) Location: University of Phoenix, 4900 California, Ave, Bakersfield, California. Announcement: SJV-SPE is proudly sponsoring “An Overview of Heavy Oil Recovery”. This one-day course is intended to provide an overview of heat and fluid flow in heavy oil reservoirs. Questions: Please call Craig Pauley @ 661-391-4360 (office); 661- 496-0707 (mobile) or e-mail CraigPauley@chevron.com if you have questions, or need additional information. Payment & Cost: Payment can be made by check at the door on the first day of class (RSVP in advance by e-mail), or register & pay with a credit card via PayPal (below). The price of this course is $940 per person. Lunch and beverages are included. RSVP via PayPal Link: An Overview of Heavy Oil Recovery Feb. 10, 2015 If you intend to pay for this class in a different manner, please contact CraigPauley@chevron.com Target Audience: The course is designed to serve as an introductory course in heavy oil recovery, providing background on a variety of heavy oil recovery techniques, with emphasis on steam injection recovery. Reservoir, production, and facilities engineers, geologists, and technicians, as well as their managers, participating in heavy oil production activities, will benefit from this course. Course Outline: Global demand and supply of energy Steamflood management Analytical heating models Well completions Post-steam injection recovery Surface facilities Screening, selection, design, and implementation Field experiences Other heavy oil recovery methods Basic concepts of thermal enhanced recovery Fundamentals of steam injection process and mechanics of recovery Considerations in steam injection projects development and operation Instructors Biography: Dr. Behrooz Fattahi holds Ph.D. degrees in Aerospace Engineering and in Mechanical Engineering from Iowa State University. After 37 years of working in the industry, he retired from Aera Energy LLC, an affiliate of Royal Dutch Shell and ExxonMobil companies, in 2014. He was the Heavy Oil Development Coordinator at Aera, and in his last position, as the Learning Advisor, he taught several internal company technical courses, including topics on reservoir engineering and enhanced oil recovery. Prior to joining the oil industry, Dr. Fattahi conducted research for the National Aeronautics and Space Administration, and the National Science Foundation, and taught a variety of courses in fluid dynamics and solid mechanics at Iowa State University. He joined the petroleum industry in 1977 by joining Shell International. Dr. Fattahi is a past member of the American Institute of Aeronautics and Astronautics, and American Association of University Professors, and has served as a member of the United States National Petroleum Council. He has held many roles within Soci-ety of Petroleum Engineers International (SPE) leadership, including the Executive Editor of the SPE Reservoir Evaluation and Engineering Journal, Director of the Western North America Region, President of SPE Americas Inc., and Vice President-Finance. Dr. Fattahi served as the 2010 President of SPE International. In retirement, he remains active as a member of the Board of the SPE Foundation, and as the 2014 President of the American Institute of Mining, Metallurgical and Petroleum Engi-neers, AIME. Special Requirements: none

Page 11 SJV SPE News B31.3 Process Piping Code Instructor: Jim E. Meyer, P. E. Date: March 2nd – 5th, 2015 (8:00 am to 5:00 pm) Location: University of Phoenix, 4900 California, Ave, Bakersfield, California. Announcement: SJV-SPE, in partnership with ASME, is proudly sponsoring a “B31.3 Process Piping Code” course. This 4-day course is intended to provide an introduction to the ASME B31.3 Process Piping Code. Questions: Please call Craig Pauley @ 661-391-4360 (office); 661- 496-0707 (mobile) or e-mail CraigPauley@chevron.com if you have questions, or need additional information. Payment & Cost: Payment can be made by check at the door on the first day of class (RSVP in advance by e-mail), or register & pay with a credit card via PayPal (below). The price of this course is $1,835 per person. Lunch and beverages are included. RSVP via PayPal Link: B31.3 Process Piping Code If you intend to pay for this class in a different manner, please contact CraigPauley@chevron.com Target Audience: This course is designed for engineers, managers and quality control personnel who are involved in the design, manufac-turing, fabrication and examination of process piping that is being built to the requirements of U.S. Codes & Standards. Course Outline: This course covers the requirements of B31.3 for design, analysis, materials, fabrication, testing and inspection of proc-ess piping systems. It explores the rules for various components including fittings, connections, bends, valves and spe-cialty components. Other topics include dimensions and ratings of components, fluid service requirements for joints, piping flexibility and support, welding, heat treatment, bending and forming, brazing and soldering, assembly, erection, examination and inspection. On completion of this course, students will be able to: Identify the responsibilities of personnel involved in the design, fabrication, assembly, erection, examination, in-spection, and testing of process piping Describe the scope and technical requirements of the ASME B31.3 Code Apply and implement the quality requirements that are defined in the ASME B31.3 Code.. The instructor asks students to bring specific problems/questions from your work to the class. Questions can also be sent to the instructor in advance. E-mail to CraigPauley@chevron.com, and these will be forwarded to the instructor. Most recently, Jim co-authored chapters in the ASME Boiler and Pressure Vessel Companion Guide, 4th Edition, covering the ASME B31.1 Power Piping Code and the B31.3 Process Piping Code. Past projects and work experience has in-volved major oil refineries, petrochemical plants, fossil, nuclear, solar and alternative energy generation, as well as cryo-genic and vacuum test facilities.

Page 12 SJV SPE News B31.3 Process Piping Code Instructors Biography: Jim E. Meyer, P.E., has over 40 years of experience in refining petrochemical, chemical, power generation and indus-trial facilities. He is a principal engineer at Louis Perry and Associates, a full service engineering and architectural firm, located in Wadsworth Ohio. Jim is experienced in overall project coordination/management, pressure equip-ment, piping design, analysis, specifications, support design, mechanical system requirements and documentation requirements. In particular, areas of his technical competence include ASME piping and pressure vessel codes, stress analysis, field troubleshooting piping system support, vibration, and expansion problems. Jim is a member of ASME and has been involved in the ASME B31.1 and ASME B31.3 Section committees for over 35 years. He is currently Chair of the ASME B31.3 Process Piping Section Committee, Chair of the ASME B31 Standards Committee, and serves on the ASME Board on Pressure Technology Codes and Standards. Jim has also served as Chair of ASME B31.1 Power Piping Code Section Committee. Most recently, Jim co-authored chapters in the ASME Boiler and Pressure Vessel Companion Guide, 4th Edition, cover-ing the ASME B31.1 Power Piping Code and the B31.3 Process Piping Code. Past projects and work experience has involved major oil refineries, petrochemical plants, fossil, nuclear, solar and alternative energy generation, as well as cryogenic and vacuum test facilities. Special Requirements: Each student should bring a calculator. Printed course materials do not include a B31.3 code book. For those who do not have access to the code book through their office, you may purchase a copy of the 2014 B31.3 code book, for $425, by contacting Craig Pauley in advance.

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“Bachus Pump Course” Page 20 SJV SPE News 300% Increase in Downhole Pump Run Life A recent Six Sigma Study shows 300% increase in downhole pump run life. Watch this 2 minute video comparing a downhole pump with a conventional plunger vs. a FARR plunger, Click here. You will be amazed. By making one small change in your downhole pumps, you will experience: 1. Reduce rig count on lease. 2. Reduce personnel and vehicles on lease. 3. Reduce Health & Safety incidents. 4. Reduce Exposure to Environmental Spill Incidents. 5. Reduce Operating Expenses and Save your company Money. You don’t even have to change your pump shop or pump supplier, just request a FARR Plunger in your next pump. Muth Pump has been in business for more than 15 years and we have more than 15,000 FARR Plungers in wells in 17 states in the USA and in 10 different countries. It is proven technology that works. Please visit our website www.muthpump.com or give us a call for more information. "By FARR, We Make Your Rod Pumps The Best In The Industry!" MUTH PUMP LLC 4308 Resnik Court #206 Bakersfield, CA 93313 Office (661) 588-8700 Fax (661) 836-1512

Page 21 SJV SPE News SUPPORT THE SJV SPE NEWSLETTER BY PURCHASING ADVERTISING SPACE MONTHLY NEWSLETTER DISTRIBUTED TO THE SAN JOAQUIN VALLEY SECTION MEMBERS FREE OF CHARGE. A PDF OF THE NEWSLETTER IS POSTED TO THE WEBSITE . Rates start at only $25/month. E-mail the SJV SPE Newsletter Editors for more info at Mojtaba_Ardali@oxy.com Company Information:Company:Address:City, State, Zip:Business Phone:Fax:Contact Name:Date of Request: Monthly Advertising Rates: (circle one)Size, inches Rate, $ / MonthDescription2 X 3.525.00(One business card size)4 X 3.550.00(Two business cards size)6 X 3.575.00(Three business cards size)8 X 3.5100.00(Four business cards size)10 X 3.5125.00(1/2 page, one column)2 X 750.00(Two business cards size)4 X 7100.00(Four business cards size)5 X 7125.00 (1/2 page)6 X 7150.00(Six business cards size)10 X 7250.00(full page) Advertising Order Form:Ad Size Start Date: One Month Cost Paid in Full# Months RunTOTAL Due: Payment Due If possible, please provide payment at time of placing advertisement. Please make checks payable to "San Joaquin Valley Section of SPE" Special Instructions:Art Work: (circle one)Camera Ready ArtBlack & White CopyBusiness CardDiskette Please send camera ready art work or business card for ad and this form to: Neil Malpiede, SJV SPEor e-mail to either:P.O. Box 308nmalpiede@naftex.comEdison, CA 93220-0308 knosova@slb.com Advertising Order Form for the monthly newsletter of theSan Joaquin Valley Section of Society of Petroleum EngineersSJV Section of SPE, PO BOX 21135, Bakersfield, CA 93390sjv.spe.orgTaxpayer ID# 75-2001539Mojtaba (Reza) Ardali, SPE Board Member Oxy Inc Or Preferably Email to Mojtaba_Ardali@oxy.com