CLICK HERE FOR INDEX PAGE PARABOLIC SOLAR COLLECTORS V. Ryan © 2005 Solar power is energy from the sun. Although the sun is 150 million kilometres away it is still extremely powerful. The amount of energy it provides for the earth in one minute is large enough to meet the earth’s energy needs for one year. The problem is in the development of technology that can harness this ‘free’ energy source. Solar collectors are one way of focussing the suns rays to heat up fluids. A typical array of solar collectors is seen opposite. They are basically unusually shaped mirrors (parabolic in shape) that focus the heat of the sun on a pipe carrying a special fluid. The temperature of the fluid in the pipe increases as it flows down the pipe, along the solar collectors. The pipe extends the entire length of the mirrors. This type of set up works at its best in desert areas where there is no shortage of sunlight and very little cloud. The hot fluid in the pipe can be used, through a system of heat exchangers, to produce electricity or hot water. The special fluid inside the pipes can be replaced with water. The concentrated heat from the parabolic collectors turns the water into steam. The jet of steam is used to turn turbines producing electricity. This system works well in desert regions due to the hot climate. The photographs show an arrangement of parabolic solar collectors. Notice the suns energy is focused on the water pipe at its centre. Parabolic Trough Collectors www.ParabolicTroughCollectors.com We provide Parabolic Trough Collectors and turnkey Concentrating Solar Power systems in addition to project design and engineering, to financing permitting and installation. This includes Solar Water Heating Systems, Solar Electric Power Systems, Solar CHP, Solar Cogeneration and Solar Trigeneration power and energy systems. We also offer energy-saving technologies that may include; Absorption Chillers, Adsorption Chillers, Automated Demand Response, Cogeneration, Demand Response Programs, Demand Side Management, Energy Master Planning, Engine Driven Chillers, Trigeneration and Energy Conservation Measures. We provide the following power and energy project development services: Project Engineering Feasibility & Economic Analysis Studies Engineering, Procurement and Construction Environmental Engineering & Permitting Power Purchase Agreements Solar Power Agreements Project Funding & Financing Options; including Equity Investment, Debt Financing, Lease and Municipal Lease Shared/Guaranteed Savings Program with No Capital Investment from Qualified Clients Project Commissioning 3rd Party Ownership and Project Development Long-term Service Agreements Operations & Maintenance Green Tag (Renewable Energy Credit, Carbon Dioxide Credits, Emission Reduction Credits) Brokerage Services; Application and Permitting We provide Net Energy Metering project development services as well as "turnkey" products and services in the areas of "Renewable Energy Technologies" and in developing clean power/energy projects that will generate a "Renewable Energy Credit," Carbon Dioxide Credits and Emission Reduction Credits. Through our strategic partners, we offer "turnkey" power/energy project development products and services that may include; Absorption Chillers, Adsorption Chillers, Automated Demand Response, Biodiesel Refineries, Biofuel Refineries, Biomass Gasification, BioMethane, Canola Biodiesel, Coconut Biodiesel, Cogeneration, Concentrating Solar Power, Demand Response Programs, Demand Side Management, Energy Conservation Measures, Energy Master Planning, Engine Driven Chillers, Solar CHP, Solar Cogeneration, Rapeseed Biodiesel, Solar Electric Heat Pumps, Solar Electric Power Systems, Solar Heating and Cooling, Solar Trigeneration, Soy Biodiesel, and Trigeneration. Unlike most companies, we are equipment supplier/vendor neutral. This means we help our clients select the best equipment for their specific application. This approach provides our customers with superior performance, decreased operating expenses and increased return on investment. For more information: call us at: 832-758-0027 What are Parabolic Trough Collectors? The parabolic trough is the most advanced of the concentrator systems. This technology is used in the largest grid connected solar-thermal power plants in the world. One such complex in the U.S. uses parabolic troughs. The Kramer Junction companies operate and maintain five 30-megawatt Solar Electric Generating Systems (SEGS). These SEGS comprise 150 to 354 megawatts of installed parabolic trough solar thermal electric generating capacity located in California's Mojave desert. The combined California facilities produce more than 99% of the commercially available solar generated electric power in the U.S. A parabolic trough collector has a linear parabolic-shaped reflector that focuses the sun's radiation on a linear receiver located at the focus of the parabola. The collector tracks the sun along one axis from east to west during the day to ensure that the sun is continuously focused on the receiver. Because of its parabolic shape, a trough can focus the sun at 30 to 100 times its normal intensity (concentration ratio) on a receiver pipe located along the focal line of the trough, achieving operating temperatures over 400 degrees Celcius. A collector field consists of a large field of single-axis tracking parabolic trough collectors. The solar field is modular in nature and is composed of many parallel rows of solar collectors aligned on a north-south horizontal axis. A working (heat transfer) fluid is heated as it circulates through the receivers and returns to a series of heat exchangers at a central location where the fluid is used to generate high-pressure superheated steam. The steam is then fed to a conventional steam turbine/generator to produce electricity. After the working fluid passes through the heat exchangers, the cooled fluid is recirculated through the solar field. The plant is usually designed to operate at full rated power using solar energy alone, given sufficient solar energy. However, all plants are hybrid solar/fossil plants that have a fossil-fired capability that can be used to supplement the solar output during periods of low solar energy. The Luz plant is a natural gas hybrid.