Plataforma solar in almeria with independent performance test certificates from the research laboratories. These devices are primarily used for active solar heating and allow for the heating of water for personal use. Four basic parabolic shapes were investigated as single units and one shape was studied as part of several array fields. Performance analysis of parabolic solar dish collector for. Also inspiration from george plhak and daniel rojas greenpowerscience, this parabolic trough solar water heater is to be one in a bank of four to. The global energy crisis is of great concern to us and we believe that a parabolic solar collector may be a possible immediate. Numerical modelling of a parabolic trough solar collector. Parabolic trough solar collector pdf parabolic trough solar collector pdf download.
In this paper work the performance analysis of parabolic solar dish collector is done with the use of different reflecting materials. In a solar cooker, for example, food is placed at the focal line. Focusing collectors can have radiation increase from low value of 1. The solar field is modular in nature and is composed of many parallel rows of solar collectors aligned on a northsouth horizontal axis. Solar tracking for a parabolic dish used in a solar thermal brayton cycle w. During this period, flabeg of germany and solel solar systems of israel rising from the ashes of luz supplied mirrors and receivers, respectively, to the operating segs.
It is typically determined by testing a collector over a range of high temperatures. Large collector fields supply the thermal energy, which is used to drive a steam turbine, which, on its part, drives the electric generator. Reduce emissions and carbon footprint from dairy by applying solar heat solutions in the manufacturing. In concentrating solar power technology, the optical efficiency of solar collector influences collector performance significantly.
Absolicon produces the worlds best concentrated solar collector certified with solar keymark. Design, construction, and test of a miniature parabolic. Energy equations for computation of parabolictrough. The parabolic trough collector of the parabolic trough solar thermal system is a kind of device that collects solar energy by means of linear focus on sunlight. Without tracking the collector becomes almost useless except for a very short time period once a day. Abstractthe parabolic dish solar collector technology is very useful as it is used for approximately all solar energy applications such as steam and power generation, water heating, air heating etc. The parabolic solar trough operates at about 75% efficiency, and at 495 square foot can collect approximately 270 kwh 10 hours on a clear day. The principal product is the solar collector, but in order to increment the efficiency of the collector the enterprise has developed their own control devices. Applications of parabolic collectors for solar heating and solar thermal power plant. Utility scale parabolic trough solar concentrators harness the suns energy to make steam for electricity generation. Solar collector solar energy is a very large, inexhaustible of energy, the power from the sun intercepted by the earth is approximately 1. Solar radiation energy to internal energy of transport medium. Parabolic trough solar collector water heater 4 youtube.
Solar tracking is also necessary for efficient use of concentrating collectors. A multitude of the researches focus on the factors of the thermal efficiency of a parabolic trough solar collector, that is, the opticalthermal efficiency. In this paper, two different reflective surfaces are used to increase the optical efficiency of a parabolic trough solar collector. In these plants, large fields of parabolic trough collectors supply the thermal energy used to produce steam supplied to a rankine steam turbinegenerator cycle to produce electricity. The sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are positioned that are intended to be heated. This page concentrates on providing links, information and plans for build it yourself concentrating collectors. Optimization of parabolic trough solar collector system. Building integration of solar thermal systems tu1205 bists types of solar collectors motion collector type absorber type concentration ratio indicative temperature range c stationary flat plate collector fpc flat 1 3080 evacuated tube collector etc flat 1 50200. Hi friends, in this article, i am going to discuss about types of concentrating solar collectors and hope you will find it useful.
The earth is closest to the sun at a distance of about 1. Solar power can be transmitted through grid either from solar photovoltaic or solar thermal technology. Numerical simulation of a parabolic trough solar collector with n on uniform solar flux conditions b y coupling fvm and mcrt method, solar energy, vol. These collectors are generally mounted on the roof and must be very sturdy as they are exposed to a variety of different weather conditions the use of these solar collectors provides an. Heliostats are tracking mirrors that reflect solar energy onto a fixed target. Abstract this paper presents the design of a parabolictrough solar collector system for water desalination in gaza, collector aperture and rimangle optimization together with the receiverdiameter selection are presented. The target of the national solar mission is to build up india as a worldwide pioneer in solar energy generation. Mean wind forces on parabolic trough solar collectors. Himin is parabolic trough solar thermal system manufacturer in china, our rough solar thermal power generation system is now the most proven largescale power system with the lowest cost. Lowcost concentrating solar collector for steam generation. Pdf optimization of parabolic trough solar collector. Solar thermal collectors and applications soteris a. Linear concentrator system basics for concentrating solar.
All four parabolic troughs together are heating our water heater tank to the maxallowed 155 degrees. Generation of a parabolic trough collector efficiency. Soltiguas parabolic collector ptmx and fresnel collector flt can be used to deliver solar heat across several innovative applications, such as solar steam, power generation and solar cooling. However, it is limited to a single or double factors for available system. Parabolic trough solar collector technology is currently the most proven solar thermal collector technology. Creating concentrador solar parabolico prezi, be patient. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect. Design, construction and testing of a parabolic solar.
From 1991 through much of the 90s, no new collector developments took place until the eurotrough collector project was costshared by the eu and a group of european companies. Abengoa solar 6 solar electric generating systems segs 9 plants, 14 to 80 mw, 354 mw total built between 1984 1990 3 sites. Daggett, kramer junction, and harper lake 30year power purchase agreements with southern california edison hybrid plants 75% solar, 25% natural gas luz ls1, ls2, and ls3 parabolic trough collector technology. Types of concentrating solar collectors your electrical. The receiver contains a fluid that is heated by the sunlight and then used to heat a traditional power cycle that spins a turbine that drives a generator to produce electricity. Modeling of a parabolic solar collector system for water desalination.
Study of applications of parabolic trough solar collector. A 50 mw solar power plant with 5492000 m of eurotrough collectors and 9hthermal storage is projected for south spain. Thermal analysis of compound parabolic collectors solar. A solar collector is a device that collects andor concentrates solar radiation from the sun. Parabolic trough power plants use parabolic trough collectors to concentrate the direct solar radiation onto a tubular receiver. In a practical collector, however, because of the presence of errors, the angle 29m should be increased to include the errors as well. Collector efficiency is defined as the ratio of energy collected by the working fluid to the direct normal solar radiation incident upon the collector aperture. Modelling of solar thermal power plant using parabolic.
The results of the evaluation to determine the thermal performance of the parabolic trough collector have a maximum outlet temperature of 47. Eurotrough parabolic trough collector developed for. Theoretical study of the compound parabolic trough solar. Each solar collector has a linear parabolicshaped reflector that focuses the suns direct beam radiation. Meyer department of mechanical and aeronautical engineering, university of pretoria abstract solar thermal brayton cycles utilise concentrated sun rays and can be used to power microturbine generators. Parabolic trough solar collector pdf basically a manual method to make high efficiency solar collectors against very low cost, which is. Manual making of a parabolic solar collector gang xiao laboratoire j. Kalogirou department of mechanical engineering, higher technical institute, p. This is primarily due to the nine plants operating in californias mojave desert since the mid1980s. Energy equations for the computation of parabolictrough collector efficiency using. Large scale concentrators today use automated tracking systems that can track the sun on a biaxial path powell, 89. Parabolic trough solar thermal system parabolic trough. Description of the system the solar collector system has 3 components. Concentrating solar collectors use shaped mirrors or lens to provide higher temperatures that flat plate collectors.
Design of a parabolic trough solar collector using a. The collector field consists of a large field of singleaxis tracking parabolic trough solar collectors. Box 20423, nicosia 2152, cyprus received 18 june 2003. A parabolic trough is a type of solar thermal collector that is straight in one dimension and curved as a parabola in the other two, lined with a polished metal mirror.
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