Description the objective of the present work is to design, develop and investigate the performance of a ptc for hot water generation system. In order to measure the characteristics described above, it have been developed various site installation testing and it has been configured the psw in different ways. Parabolic trough collectors ptc are frequently used for steam generation. Thestages of design, modeling, and evaluation of a parabolic trough collector ptc for heating water as a demonstrative prototype are presented.
It points out the types of situations where parabolictrough solar water heating is most likely to be cost effective and describes the espc process available to federal facilities for parabolictrough projects. Modelling of solar thermal power plant using parabolic trough. Modeling of a parabolic trough solar receiver implemented in. The equipment which is made up of the reflector surface curved mirror, reflector support, absorber pipe and a stand. Design of a parabolic trough solar collector using a. Parabolic trough calculator this module computes the dimensions of the end plate of a closed parabolic trough solar collector.
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 major task behind this research work is to increase the efficiency of the parabolic trough collector. An air conditioning system using a parabolic trough collector was developed and used in educational building 4. Chapter 3 heat transfer analysis of parabolic trough solar receiver 50 3. 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. Each part is composed by an equal number of identical collector elements, connected mechanically in series. Pdf parabolic trough solar collector design, construction and. 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. Manual making of a parabolic solar collector, gang xiao, laboratoire j. 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. Modeling of a parabolic solarcollector system for water desalination. It offers polytrough 1200, a roof and ground mountable parabolic trough collector. 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. Eurotrough parabolic trough collector developed for.
Design of solar fields with parabolic trough collectors. The nonuniform concentrated solar flux distribution on the outer surface of the absorber tube can lead to large circumferential temperature difference and high local temperature of the absorber tube wall, which is one of the primary causes of parabolic trough solar receiver ptr failures. The parabolic trough is single tracking technology. Different ways to couple a parabolic trough solar field with an industrial process.
Design and construction of a parabolic trough solar collector. Experimental and simulation studies of parabolic trough collector. Nep solar is striving to make a difference in the emerging concentrating solar thermal energy sector. When the radiation falls on parabolic trough collector. A multitude of the researches focus on the factors of the thermal efficiency of a parabolic trough solar collector, that is, the opticalthermal efficiency. Design, construction, and test of a miniature parabolic. The model determines the performance of a parabolic trough solar collector s linear receiver, also called a heat collector element hce.
A design method and numerical study for a new type parabolic. The mathematical model has been transformed into a design support system simulation software. The receiver chosen was a simple, halfinch copper pipe, painted. The parabolic trough collectors ptc consist of solar collectors mirrors, heat receivers and support structures. Modelling of solar thermal power plant using parabolic. The cylindrical parabolic collector is also referred to as a parabolic trough collector or a linear parabolic collector. Its erection was finished in june 20 and consists of a hydraulic and thermal subsytem, a control subsystem, and a parabolic trough solar collector of 1. Nrel tests show the skytroughs thermal efficiency at 350 c 662 f to be over 73%, meaning that nearly three quarters of the solar radiation striking the trough surface is converted into thermal energy. Modeling of a parabolic solar collector system for water desalination.
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. We develop and manufacture solar thermal parabolic trough collectors and advise on system design and applications. Design, simulation and manufacturing of an integrated. The overall efficiency of a parabolic trough collector depends on optical and thermal performances. Parabolic trough collectors are a low cost implementation of concentrated solar power technology that focuses incident sunlight onto a tube filled with a heat transfer fluid. The annual peak efficiency of each plant is 28% and average efficiency is 15%. Design and fabrication of parabolic trough solar water. Structural design of parabolictrough solar concentrators. Medium temperature solar concentrators parabolictroughs. Dec 18, 2017 for the love of physics walter lewin may 16, 2011 duration. However, it is limited to a single or double factors for available system. In addition to the mathematical model design charts, material properties and standards from handbooks have been included in the database.
Energy equations for computation of parabolictrough. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. Single axis collector performance cannot be significantly improved but there is a significant opportunity to reduce the cost problem statement. Design and development of an educational solar tracking. Each module comprises 28 parabolic mirror panels 7 along the horizontal axis between pylons and 4 in a vertical crosssection. Design and construction of a parabolic trough solar. Single axis tracked parabolic trough concentrator nonimaging concentrators linear fresnel reflector about the parabolic trough technology parabolic trough concentrator ptc comprises of a cylindrical concentrator, of parabolic crosssectional shape, and a circular cylindrical receiver located along the focal line of the parabola. Abstract this paper presents the design of a parabolictrough solarcollector system for water desalination in gaza, collectoraperture and rimangle optimization together with the receiverdiameter selection are presented. Design support system for parabolic trough solar collector. Pdf design analysis of solar parabolic trough thermal. The reflector, which concentrates the sunlight to a focal line or focal point, has a parabolic shape. The procedure employed includes the design, construction and testing stages. The plants are operating with thermal storage of 7.
It is used to predict the performance of a given parabolic trough and compare competing technologies. The absorber surface covered with a glass to reduce the losses from the absorbing surface. Pdf design analysis of solar parabolic trough thermal collectors. Federal technology parabolictrough solar alert water heating. Energy equations for the computation of parabolictrough collector efficiency using. This system incorporates a parabolic trough collector of 52 m2. It generates chilled and heated water, depending on the season, for space cooling and heating. Next an attempt was made to attach two of the 2 by 4s to the outer edges of the parabolic frame pieces. Design analysis of solar parabolic trough thermal collectors.
Pdf design and construction of a parabolic trough solar. A parabolic trough solar power plant simulation model. Parabolic trough power plants use parabolic trough collectors to concentrate the direct solar. Design, construction, and test of a miniature parabolic trough. The results of the evaluation to determine the thermal performance of the parabolic trough collector have a maximum outlet temperature of 47. The solar option and solar collector solar energy is a very large, inexhaustible of energy, the power from the sun intercepted. Csiro has built a solar thermal parabolic trough collector field which will produce 80kw th at wm2 beam irradiation at temperatures up to 280oc. Sep 15, 2016 the parabolic trough is single tracking technology. Systems with light structures and low cost technology for process heat application up to 400 8c could be obtained with parabolic through collectors. Each mirror is supported on the structure at four points on its backside. A wide variety of parabolic trough solar collector options are available to you, such as type, application, and pipe material. I medium temperature solar concentrators parabolic troughs collectors e. Sensitive analysis for the efficiency of a parabolic trough. Closed circuit system can be used in the parabolic trough collector allowing to store higher heat and at higher pressure conditions increasing its potential 9.
Eurotrough parabolic trough collector developed for cost. The entire collector was small enough to allow for easy manual adjustment for solar tracking. Design of solar fields with parabolictrough collectors. Design and development of parabolic trough solar concentrator. The efficiency and cost of the parabolic trough collector designs is influenced by structural stiffness, choice of materials, assembly tolerances, mirror cleanliness and wear. Solar energy can be exploited for producing both electricity by photovoltaic collectors, pv and heat by thermal solar collectors, sc. We manufactures of solar parabolic trough collector or line focus system we track the sun movement of the sun and focus on observation tube and heat. A parabolic trough is a type of solar thermal energy collector used in csp plants concentrated solar power. The geometry and dimensions of ptc assembly significantly affect the thermal and optical performance of solar field. The fundamental characteristics of the performance of a parabolic trough solar collector are its concentration ratio and its optical efficiency. For the love of physics walter lewin may 16, 2011 duration.
Parabolictrough concentrator the accuracy of the solar tracking depends to a great extent on the solar coordinates at a particular. Parabolic trough collector overview notes on a bit of history, development after luz, and a recent surge in trough collector technology offerings dr. 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. Simplified methodology for designing parabolic trough. What are central parameters in the design of a parabolic trough power plant. Pdf in this paper are presented the results of designing a parabolic trough solar collector ptsc, and its application in a solar thermal system for. It points out the types of situations where parabolic trough solar water heating is most likely to be cost effective and describes the espc process available to federal facilities for parabolic trough projects. In addition, sidebars provide indicators that a system. Sensitive analysis for the efficiency of a parabolic. The initial installation cost of these parabolic trough solar collectors consti. A design method and numerical study for a new type. Experimental and simulation studies of parabolic trough collector design for. Sep 03, 2010 it is used to predict the performance of a given parabolic trough and compare competing technologies. In 1907, the germans wilhelm meier and adolf remshardt obtained the first patent of parabolic trough technology.
Material and component specifications single axis tracked. Unesco eolss sample chapters solar energy conversion and photoenergy systems vol. Numerical modelling of a parabolic trough solar collector. Parabolic trough collectors are typically used in active, indirect water heating systems. Depending to their design, ptc and lf are able to concentrate the solar radiation flux 30. Recent studies that analyze the deployment of solar. Different ways to couple a parabolictrough solar field with an industrial process.
Cad modeling of the collector unit the parabolic trough collector is modeled in dassault systemes solidworks 18 software. In this paper, a secondary reflector used as a homogenizing reflector hr in a conventional parabolic. Heat transfer analysis and modeling of a parabolic trough. Design, construction and evaluation of parabolic trough. Innovative technology solutions for sustainability.
Especially, parabolic trough solar collectors ptscs are gaining popularity due to. From a structural point of view, it must be emphasized that the parabolic trough concentrator is composed mainly by three systems. In a solar cooker, for example, food is placed at the focal line. Design, construction and evaluation of parabolic trough collector. 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. With respect to the user friendliness of the developed software, evaluation tests were performed with selected final year mechanical engineering students. The performance of parabolic trough solar collector ptsc has been evaluated using different heat transfer working fluids.
Pdf design and manufacturing of parabolic trough solar. The design and fabrication of parabolic trough solar water heater for water heating was executed. Abstract this paper presents the design of a parabolic trough solar collector system for water desalination in gaza, collector aperture and rimangle optimization together with the receiverdiameter selection are presented. Table 2 shows the design characteristics of th e acurex, single axis tracking m. Simplified methodology for designing parabolic trough solar. The results of the software were validated with published works. 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.
Parabolic trough collector having absorber which is located at the focal point of reflecting surface so all the reflected rays fall on the absorbing surface. So these three steps are interlinked and simultaneously completed. A parabolic trough solar power plant simulation model preprint h. The eurotrough collector models are made up of identical 12 m long collector modules. A design support system for parabolic trough collector design is presented in this study. International solar energy conference hawaii island, hawaii march 1618, 2003 national renewable energy laboratory 1617 cole boulevard golden, colorado 8040393 nrel is a u. The currently dominant design of parabolic trough for solar power plants is. A solar parabolictrough collector line is divided into.
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