The parabolic trough is single tracking technology. In spain, there are three power plants namely andasol 1, andasol 2 and andasol 3 that are being operated using parabolic trough collector technology with a capacity of 50 mw each. The site can be a bit of a challenge to find stuff on, but its worth the. The baseline 2010 plant is a wetcooled, superheated steam power blockthat uses synthetic oil. Nep solar is striving to make a difference in the emerging concentrating solar thermal energy sector. Parabolic trough calculator this module computes the dimensions of the end plate of a closed parabolic trough solar collector. It offers polytrough 1200, a roof and ground mountable parabolic trough collector. Luz ls1, ls2, and ls3 parabolic trough collector technology segs demonstrated commercial nature of parabolic trough technology all plants still operating, many will likely operate. Design, simulation and manufacturing of an integrated. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. Ls2, and ls3 parabolic trough collector technology.
Design, construction and evaluation of parabolic trough. Eurotrough parabolic trough collector developed for. Department of energy doe has adopted the planning method known as technology roadmapping for much of its program development. Federal technology parabolictrough solar alert water heating. In 1907, the germans wilhelm meier and adolf remshardt obtained the first patent of parabolic trough technology. The parabolic shaped mirrors are constructed by forming a sheet of reflective material into a parabolic shape that concentrates incoming sunlight onto a central receiver tube at the focal line of the collector.
It reflects the solar radiation and transfers it to the receiver tube. We develop and manufacture solar thermal parabolic trough collectors and advise on system design and applications. Selection of design point conditions performance of a parabolic trough collector solar field is. Simplified methodology for designing parabolic trough solar power plants ricardo vasquez padilla. Parabolic trough collector technology torresol energy. This article offers an illustrated description of a method to produce a closed parabolic trough solar energy collector box based on the elasticity of the material. A multitude of the researches focus on the factors of the thermal efficiency of a parabolic trough solar collector, that is, the opticalthermal efficiency. Patented parabolic trough reflectors, uses the latest technology. Modelling of solar thermal power plant using parabolic trough.
Simplified methodology for designing parabolic trough solar. The solar option and solar collector solar energy is a very large, inexhaustible of energy, the power from the sun intercepted. Top 7 mistakes newbies make going solar avoid these for effective power harvesting from the sun duration. Design, construction, and test of a miniature parabolic. For the united states, parabolic trough waterheating systems are. Dec 18, 2017 for the love of physics walter lewin may 16, 2011 duration. Eurotrough parabolic trough collector developed for cost. Use of parabolic trough solar energy collectors for seawater desalination soteris kalogirou department of mechanical engineering, higher technical institute, po box 423, nicosia, cyprus abstract the various desalination methods are analysed with respect to their primary energy consumption, seawater treatment requirement and equipment cost. Abstract parabolic trough solar water heating is a wellproven renewable energy technology with considerable potential for application at federal facilities. Parabolic trough power plants ptpp are thus far mostly developed csp thermal plants that are operating commercially. 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. Solar energy technologies have become more popular in recent decades, with concentrated solar power being one of the most used energy sources to provide thermal energy to applications operating at medium and high temperatures. In this article, we study a design of closedbox parabolic trough concentrated solar collector.
Sams physical trough model to estimatewas used the 2010 and future year costs of the parabolic trough technology. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. Nov 25, 2010 a parabolic trough collector it is a principle of geometry that a parabolic reflector pointed at the sun will reflect parallel rays of light to the focal point of the parabola. The initial installation cost of these parabolic trough solar collectors consti. Plant overview figure 1 shows a process flow diagram that is representative of the majority of parabolic trough solar power plants in operation today.
Parabolic trough collector an overview sciencedirect. Presently, it is the most advanced and lowest cost large scale solar power technology available. For solar applications, especially parabolic trough collector systems, heat transfer between the receptor tube and the fluid can be increased due to the enhancement of the thermal properties of the base fluid oil or water, thereby obtaining more available thermal power. A precision made parabolic trough can focus more solar on a receiver tube collector resulting in creating more solar energy. Ricardo vasquez padillas simplified methodology for designing parabolic trough solar power plants singleaxis. Cad modeling of the collector unit the parabolic trough collector is modeled in dassault systemes solidworks 18 software. A comparative study between parabolic trough collector and linear. They identified aluminium sheet as cost effective material to use as reflector. The parabolic trough collectors ptc consist of solar collectors mirrors, heat receivers and support structures. I medium temperature solar concentrators parabolic troughs collectors e.
Pdf an overview on parabolic trough solar collector. Cnc precision is used in the process of making our parabolic troughs. The parabolic trough linear collector ptlc is a solar technology employed to convert solar radiation into thermal energy for commercial and industrial processes. The parabolic solar collector parabolic trough fixed stand rotating trough foil tape focal line parabolic trough solar waterheating and absorptioncooling systems, the situations in which parabolic trough systems are likely to be cost effective, and considerations in selecting and designing a system. Comparison of two linear collectors in solar thermal plants. Pdf comparison of two linear collectors in solar thermal. Each sca is an independently tracking parabolic trough solar collector consisting of four major subsystems. Ricardo vasquez padillas simplified methodology for designing parabolic trough solar power plants singleaxis tracking systems. Owned by torresol energy and located in the south of spain, the valle 1 and valle 2 parabolic trough plants have. Table 2 shows the design characteristics of th e acurex, single axis tracking m. Sensitive analysis for the efficiency of a parabolic. 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.
Main reflective materials that are used include silver and alluminium, which are normally placed on a glass plate. The optical and thermal efficiency of parabolic trough collector solar fields is. A scm could have a length up to 15 metres 49 ft 3 in or more. What is described here is basically a manual method to make high efficiency solar collectors against very low cost. As a key component of a parabolic trough solar collector, its thermal and optical performance as well as performance reliability determines the efficiency and economy of a. 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. Simplified methodology for designing parabolic trough solar power plants 2011. A parabolic trough is made of a number of solar collector modules scm fixed together to move as one solar collector assembly sca.
A parabolic trough employs parabolic mirrors that act as collectors can be coated silver or polished for more efficiency. Recent studies that analyze the deployment of solar parabolic trough collectors sptc in different countries and the. The htf will deliver 25 kw heat operate an unfired boiler to produce steam at 5 bar. 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. In case of a parabola, incoming rays which are parallel suns rays arriving are nearly parallel will be reflected always to the focus regardless of where they arrive on the dish. Selection of design point conditions performance of a parabolic trough collector solar field is evaluated for a set of conditions and geographical. Parabolic trough solar waterheating system for adams county detention facility, brighton, colorado. Modeling and experimental investigation of parabolic trough solar. They consist of a solar field filled with hundreds or thousands of solar collector assemblies sca.
Manual making of a parabolic solar collector gang xiao. What are the main components of a parabolic trough power plant and how do they work. Torresol energy builds plants with parabolic trough technology, which incorporate a moltensalt storage system. Abstract parabolictrough solar water heating is a wellproven renewable energy technology with considerable potential for application at federal facilities. Solar collector elements with 36 m of absorber tube using a manual close range. However, it is limited to a single or double factors for available system. Airborne shape measurement of parabolic trough collector fields. This module computes the dimensions of the end plate of a closed parabolic trough solar collector. Parabolic solar trough parabolic trough collectors for. Sensitive analysis for the efficiency of a parabolic trough.
Innovative technology solutions for sustainability. About a dozen or more of scm make each sca up to 200 metres 656 ft 2 in length. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect. Design of a parabolic trough solar collector using a. A solar field of 510,000 m 2 with senertrough collectors. The parabolicshaped mirrors are constructed by forming a sheet of reflective material into a parabolic shape that concentrates incoming sunlight onto a central receiver tube at. I tried to show what a determined person can do with ordinary tools and materials, a good hardware store and a bit of perseverance a high performance do it. Energy equations for computation of parabolictrough. Parabolic trough solar technology is credited by being synonymous with the very first application of solar energy. As a key component of a parabolic trough solar collector, its thermal and optical performance as well as performance reliability determines the efficiency and economy of a parabolic trough power generation system. Medium temperature solar concentrators parabolictroughs. Parabolic trough power plants use parabolic trough collectors to concentrate the direct.
The major task behind this research work is to increase the efficiency of the parabolic trough collector. A parabolic trough collector ptc is a linearfocus solar collector, basically composed of a parabolic trough shaped concentrator that reflects direct solar radiation onto a receiver or absorber tube located in the focal line of the parabola see fig. Eurotrough parabolic trough collector developed for cost efficient solar power generation michael geyer b, eckhard lupfert f, rafael osuna a, antonio esteban, wolfgang schiel c, axel schweitzer c, eduardo zarza e, paul nava b, josef langenkamp b, eli mandelberg d. Next an attempt was made to attach two of the 2 by 4s to the outer edges of the parabolic frame pieces. The constructors used parabolic trough collectors with a length of 62m and an aperture width of 4m. The examined solar cooling system is a one stage waterlithiumbromide absorption chiller driven by a parabolic trough collector coupled with a. Parabolictrough solar waterheating system for adams county detention facility, brighton, colorado. It is claimed that the advantage of combining these two concepts is a better. Unesco eolss sample chapters solar energy conversion and photoenergy systems vol. 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.
A half inch hole was drilled in each frame piece to serve as the point of rotation for angling of the trough, and the attachment to the base. Parabolic troughs, which are a type of linear concentrator, are the most mature csp technology with over 500 megawatts mw operating worldwide. Parabolic trough collector cost update for the system advisor model sam parthiv kurup and craig s. Simplified methodology for designing parabolic trough. The baseline 2010 plant is a wetcooled, superheated steam power blockthat uses synthetic oil htf see table 2. Solar energy conversion and photoenergy systems vol. The results of the evaluation to determine the thermal performance of the parabolic trough collector have a maximum outlet temperature of 47. Brief introduction parabolic trough receiver is also known as heat collecting element hce. Use of parabolic trough solar energy collectors for seawater. Parabolic trough collector cost update for the system. Sep 15, 2016 the parabolic trough is single tracking technology. This system allows them to achieve a very high annual usage rate.
Manual making of a parabolic solar collector gang xiao laboratoire j. Parabolic trough solar thermal system parabolic trough. The parabolic trough collector ptc is the most common type of hightemperature solar thermal technology, in which the heat transfer fluid is usually synthetic oil, molten salt or watersteam. Thermal performance of a parabolic trough linear collector.
Pdf the use of parabolic trough collectors for solar cooling a. Parabolic trough receiver solar collector manufacturer. The larger collector aperture area concentrates reflected direct solar radiation onto the smaller outer surface of the receiver tube. Experimental test of the parabolictrough solar collectors 35. The pumps were driven by steam motors, which received the steam from the parabolic troughs. The aim of this paper is to investigate the multifactors effect on the systems efficiency in cold climate region. The receiver absorbs the incoming radiations and transforms them into thermal energy. The various components are the parabolic trough, vertical side panels for absorber tube support, ribs for trough support and shape, and flange panels for photovoltaics fig. Parabolictrough technology roadmap january 1999 page 2 introduction technology roadmapping the u. Energy equations for the computation of parabolictrough collector efficiency using. For the united states, parabolictrough waterheating systems are. Parabolic trough collector cost update for the system advisor.
Parabolic trough power plants are the only types of solar thermal power plant technology with existing commercial operating systems. Aug 19, 2009 just a quick video of my solar collector. Modelling of solar thermal power plant using parabolic. The site can be a bit of a challenge to find stuff on, but its worth the effort.
Parabolic trough collectors are frequently employed for solar steamgeneration because temperatures of about 300 can be obtained without any serious degradation in the collector s efficiency. For the love of physics walter lewin may 16, 2011 duration. Pdf design analysis of solar parabolic trough thermal. There are good designs here that can be built on a budget and without exceptional mechanical skills. A moltensalt heat storage system that allows it to supply electric power for up to seven hours when there is an absence of solar radiation. Combining these, we get the temperature drop of the film. Solar troughs are easy to assemble and takes 2 men approximately 1 week to assemble. Duanes redrok site is information central for diy heliostats and concentrating solar collectors. Parabolic trough calculator www interactive multipurpose.
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