The grabcad library offers millions of free cad designs, cad files, and 3d models. Zarza encyclopedia of life support systems eolss the concentration ratio of a ptc is the ratio between the collector aperture area and the total area of the absorber tube. Solar energy conversion and photoenergy systems vol. The first commercial parabolic trough power plants with a total capacity of 354 mw have already been in operation for over 20 years in californias mojave desert usa. Performance of a parabolic trough collector solar field is evaluated for a set of conditions and geographical location, these set of conditions are known as design point conditions. The mirrors track the sun on one linear axis from north to south during the day. Tracking is particularly important in solar energy collection systems that operate under concentrated sunlight.
Tsk flagsol designs and supplies these parabolic trough collectors. This file is licensed under the creative commons attributionshare alike 4. The low costs of the collector and the storage device guarantee that all these applications will lead to an energy cost significantly below that of fossil fuels. Technology solabolic achieves a parabolic shape by evenly distributing forces on a series of cables, and does so without any complex hightech machining, mounting, or assembly processes. The pipe is seated above the mirror in the center along the focal line and has a heatabsorbent medium mineral oil, synthetic oil, molten salt etc. Proceedings of the 2nd world congress on mechanical, chemical, and material engineering mcm16 budapest, hungary august 22 23, 2016 paper no. Asme renewable and advanced energy systems for the 21st century conference april 1114, 1999, maui, hawaii parabolic trough solar power for competitive u. Design of a parabolic trough solar collector using a concentrator with.
The parabolic trough receiver is designed to promote the solar fields to be more productive and more costcompetitive. The parabolic trough collectors ptc consist of solar collectors mirrors, heat receivers and support structures. First, there was a relatively high marketing and engineerin g. The initial installation cost of these parabolic trough solar collectors consti tutes the. The highperformance cpctrough collector has been developed for the utility scale generation of low temperature solar steam and hot water for low temperature process heat applications including solar air conditioning. This is determined by measuring the temperature rise of water as it flows through. Parabolic trough receiver heat collection element manufacturer. Thermal output analysis of a designed parabolic trough. As part of this effort, several configurations of an ist solar collector were tested to determine the collector efficiency and thermal losses with black chrome and black nickel receiver selective coatings, combined with aluminized film and silver film reflectors. It is sized so that the length of the parabolic curve is the same as the width of the available mirror material.
Mar 23, 2016 parabolic trough collector systems produce heat at about 400c. In order to replace thermal oil as the heat transfer medium, alternative heat transfer media are being investigated, including water vapour and molten salts. Design support system for parabolic trough solar collector. Parabolic trough made easy an easy source of cheap and. The inventive solar trough field system a comprises multiple parabolic reflectors 1, support circles 3 of which the center coincides with the focus of the parabolic reflector 1 and which are used in order to support the reflector 1, core mechanisms 2 which are located on the center of the circles 3, guy wires 4 which connect the circle 3 and the core mechanism. Parabolic trough power plants ptpp are thus far mostly developed csp thermal plants that are operating commercially. In addition to the mathematical model design charts, material properties and standards from handbooks have been included in the database. A fluid, normally synthetic oil, circulates inside the receiver tubes and is heaten up by the sun around 400. Also, one of the main components in the solar ptc for the improvement of efficiency is the solar tracking system. Development of the parabolic trough in the country requires component and material standards to be followed for maintaining the quality in the field by the manufacturer and assurance of the quality by an enduser. The ho t salt can then be used to generate electricity when needed. Parabolic trough power plants constitute the biggest share of the installed concentrating solar power technology. Technology solabolic next generation of parabolic trough.
Application use of parabolictrough systems is more limited by geography and system size than are other types of solar water heating, but where parabolic troughs are usable they often have very attractive economics. Abstracteven though most variations of solar concentrators have palmistry guide in urdu pdf been studied or. Daggett, kramer junction, and harper lake 30year power purchase agreements with southern california edison. Parabolic trough collector cost update for the system advisor model sam parthiv kurup and craig s. Himin is parabolic trough receiver manufacturer in china, our parabolic trough receiver, also called the heat collection element hce, is a key component of the parabolic trough csp project. They consist of a solar field filled with hundreds or thousands of solar collector assemblies sca. Nine trough power plants in californias mojave desert provide the worlds largest generating capacity of solar electricity, with a combined output of 354 megawatts. This paper presents the simulation of parabolictrough collector model te38 using solar positions coordinates of bauchi. The model equations included the universal timeut, day n, month m, year y, delta t. Pdf design and manufacturing of parabolic trough solar. Parabolic trough how parabolic trough works solar fields using trough systems capture the suns energy using large mirrors shaped like a parabola, or a giant u, that are connected together in long lines that track the suns movement throughout the day. I medium temperature solar concentrators parabolic troughs collectors e.
Nomenclature a a aperture area c heat capacity of adsorbent bed jk. A first ultimate trough ut collector demonstration loop was successfully integrated in an existing solar power plant in california and is now put into operation. Presently, it is the most advanced and lowest cost large scale solar power technology available. Test results, industrial solar technology parabolic trough. Parabolic trough collector cost update for the system advisor. The mathematical model has been transformed into a design support system simulation software. Parabolic trough collector ptc is special kind of heat exchanger that is able to transfer solar radiation energy to fluid medium that flow through it.
The suns direct radiation is, by a reflective sheet of parabolic. The collectors of a parabolic trough system consist of mirrors and absorber tubes to be mounted onto steel support structures in a highprecision way. This page describes the design, construction, and operation of a troughtype parabolic solar concentrator. The solar tracking device keeps the ptc towards the sun direction all through the day for receiving the solar. Federal technology parabolictrough solar alert water heating. The andasol power plants in southern spain are the first parabolic trough power plants in europe. Each sca is an independently tracking parabolic trough solar collector consisting of four major subsystems.
Join the grabcad community today to gain access and download. Design of a parabolic trough solar collector using a. Solar trough systems these systems provide largescale power generation from the sun and, because of their proven performance, are gaining acceptance in the energy marketplace. Parabolic trough collector technology researchers are working on further reducing their costs by enhancing the collector design and automating the operation and maintenance. Technology next generation of parabolic trough solar. Unesco eolss sample chapters solar energy conversion and photoenergy systems vol. Although several parabolic trough developers sold iph systems in the 1970s and 1980s, they generally found tw o barriers to successful marketing of their technologies. Pdf new trends in designing parabolic trough solar. Price national renewable energy laboratory 1617 cole blvd. Solel was one of the early solar thermal players, building hundreds of megawatts of parabolic trough solar thermal plants in californias mojave desert in the late 1980s and early 1990s.
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. It is there since many years, generating electricity in solar power plants. Sandia national laboratories and industrial solar technology are costsharing development of advanced parabolic trough technology. New trends in designing parabolic trough solar concentrators and heat storage concrete systems in solar power plants chapter pdf available february 2010 with 368 reads how we measure reads. Parabolic trough collectors are formed by a cylindrical surface of mirrors with a parabolic shape that concentrates solar radiation on a receiver tube located at the focal point of the parabola. Since 1996 such a cshp is running successfully in marstal on the island of. The inside of the trough must next be covered with a highly reflective material such as aluminiumised mylar a reflective plastic sheet, or flashing. The aim of the research project is to test the solartothermal energy efficiency of a tracking linefocus parabolic trough solar collector ptsc. Modelling of solar thermal power plant using parabolic trough. This is primarily due t o nine large commercialscale solar power plants, the first of which has been operating in the california mojave. For the traditionalists, we have a standard parabolic rib with a 37 aperture and 6 focal length designed for a 48 wide reflector. Many studies on the design, analysis and optimization of ptc systems are available, but no clear. Cpctroughcompound parabolic collector for cost efficient.
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. The trough has a parabolic crosssection consisting of that portion of the parabolic curve between its intersections with the latus rectum. Medium temperature solar concentrators parabolictroughs. Solar electric generating systems segs 9 plants, 14 to 80 mw, 354 mw total built between 1984 1990 3 sites. Parabolic trough collector cost update for the system. Designing a ptc for a specific working condition requires determination of several parameters and referring to a number of design standards and handbooks. Specifically, the program was directed toward the guesi. Solar energy, solar parabolic trough collector, adsorption refrigeration, thermal design. In terms of collector area, they are the worlds largest solar power plant in. Over 100 years ago, suspension bridges vastly increased the span and reduced the material consumption and manufacturing costs for bridge technology.
Its huge dimensions of one solar collector assembly sca with an aperture of 7. Parabolic trough collector home what we offer products collector the core unit of each solarthermal power plant is the solar field, where the incident solar radiation is concentrated, converted into heat, and finally fed into the power generation circuit. This heat can be stored in an insulated container and used during nighttime. Parabolic trough made easy an easy source of cheap and abundant energy solar energy is omnipresent. Ultimate trough fabrication, erection and commissioning of. Overview of solar thermal technologies 52 550 of and cycled through the receiver where it is heated to 565 oc 1,049 of and returned to a hot tank. Simulation of parabolic troughs for district heating largescale solar heating systems connected to local or district heating systems are called central solar heating plants cshp. Material and component specifications single axis tracked. Parabolic trough systems of industrial solar technologies a motor and a steel rope track the two rows continuously to the direction of the sun oneaxis tracking. Design and manufacturing of parabolic trough solar collector system for a developing country pakistan article pdf available january 2011 with 1,980 reads how we measure reads. The metal frame structure is anchored in the ground with the help of concretetype pylons. Modelling of solar thermal power plant using parabolic.
The plants are operating with thermal storage of 7. Parabolic trough solar technology is credited by being synonymous with the very first application of solar energy. Thermal output analysis of a designed parabolic trough solar. Currently molten salt is used for this purpose, and this system was used in the california plants, the newly built plants, and the plants that are under construction or planned for the near future. The theoretic design principle of a closed parabolic trough box can be found in 1. In parabolic trough collector, long, ucurved mirrors focus the rays of the sun into an absorber pipe. Thermal efficiency of solar parabolic trough collector. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. In a solar cooker, for example, food is placed at the focal line. Once you have an economical and practical tool to collect it, you have a cheap and abundant energy source. Current designs allow storage ranging from 3 to hours. Distinguishing between parabolic trough power plants, fresnel power plants, solar tower power plants and dishstirling systems, the parabolic trough power plants provide over 90% of the. Parabolic trough is a concentrating solar collector.
The annual peak efficiency of each plant is 28% and average efficiency is 15%. List of a few such installations is given as an annexure. Application use of parabolic trough systems is more limited by geography and system size than are other types of solar water heating, but where parabolic troughs are usable they often have very attractive economics. I am happy to announce we have a new line of parabolic trough components that are available in our store.
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