The fundamental characteristics of the performance of a parabolic trough solar collector are its concentration ratio and its optical efficiency. Parabolic trough collector prototypes for lowtemperature process. Pdf performance of a parabolic trough solar collector. A scm could have a length up to 15 metres 49 ft or more. A parabolic trough solar collector using reflective flexible materials is disclosed. Pdf an overview on parabolic trough solar collectors. About a dozen or more of scm make each sca up to 200 metres 656 ft 2 in length. A scm could have a length up to 15 metres 49 ft 3 in or more. Patented parabolic trough reflectors, uses the latest technology. Engineering and manufacturing solar collectors design and construction models properties solar power plants. Innovative technology solutions for sustainability.
These values can be calculated based on detailed collector. Design, simulation and manufacturing of an integrated. Types of concentrating solar collectors your electrical. Parabolic trough collector technology torresol energy. Generation of a parabolic trough collector efficiency. In 1907, the germans wilhelm meier and adolf remshardt obtained the first patent of parabolic trough technology. 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.
The examined configurations practically are different combinations of organic rankine cycle orc with heat pumps. Material and component specifications single axis tracked parabolic trough prepared by it power india. The cylindrical parabolic collector is also referred to as a parabolic trough collector or a linear parabolic collector. It is a smallsize concentrating solar collector, with a reflective mirror surface under the form of a parabolic cylinder which concentrats the sunlight to a receiver tube located at the focus line.
Each sca is an independentlytracking parabolic trough. Numerical modelling of a parabolic trough solar collector. 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. About a dozen or more of scm make each sca up to 200 metres 660 ft length.
Keywords parabolic trough solar collector ptc, evacuated tube et. The two tests were conducted in different flow field environments, one a uniform flow infinite airstream, the second a simulated atmospheric boundary layer flow with the models simulating a groundmounted installation. Heat transfer analysis and modeling of a parabolic trough solar. Design and manufacturing of parabolic trough solar. Parabolic trough is also considered one of the most mature and most commercially proven technologies in the utility scale csp facilities mendelsohn et al. We are interesting to improving performance of parabolic trough collector because they are used very much.
Many country choose these technology in solar power station and produce heat energy at lower prices. Featuring a reduced collector weight and profile at onethird the size of a traditional parabolic trough, the soponova offers a modular design which delivers seamless integration between solar field and existing components. Turchi national renewable energy laboratory technical report nreltp6a2065228. Despite many of these models having yet to be demonstrated in the. You must register to participate registration is free, but space is limited more details, registration information, and recordings of past webinars on learning page of sam. Parabolic trough solar concentrating systems are an advanced and matured technology. Code for thermal analysis of parabolic collectors are used.
Material and component specifications single axis tracked. Main reflective materials that are used include silver and alluminium, which are normally placed on a glass plate. Design, construction, and test of a miniature parabolic. This system allows them to achieve a very high annual usage rate. The objectif of the present work is to determinate the potential of the solar parabolic trough collector ptc for use in the design of a solar thermal power plant in. The overall efficiency can be determined by testing the collector.
Use of parabolic trough solar energy collectors for sea. But the patent assignee allows royaltyfree manual use of. Parabolic trough collector cost update for the system. Energy equations for the computation of parabolic trough collector efficiency using. Solar power plant using parabolic trough collector these power plants employ an array of parabolic trough collectors installed with sun tracing device to collect the solar radiations which are used to heat a fluid water. This book provides a technical overview of lowcost parabolic trough collector.
To enhance the heat transfer in a parabolic trough solar collector by using znowater as nanofluid with different volumetric concentrations and flow rates, in free and forced convection system. Continued from part 3 this is a series of articles on the various technologies that can be employed to trap the suns energy. This creates the opportunity to enter new market sectors and make way for project installations on a commercial rooftop. Single axis collector performance cannot be significantly improved but there is a significant opportunity to reduce the cost problem statement.
A parabolic trough is a type of solar thermal energy collector used in csp plants concentrated solar power. Torresol energy builds plants with parabolic trough technology, which incorporate a moltensalt storage system. The general range of working temperature is between 250 o c to 400 o c. 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. This line is called the focal axis of the parabolic collector. One of the method to improve thermal performance of parabolic trough collector system is used to nanofluid as working. Simplified methodology for designing parabolic trough solar power plants ricardo vasquez padilla.
Diy parabolic trough mirror made in 20 minutes stainless. Parabolic trough collector cost update for the system advisor model sam parthiv kurup and craig s. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. Flat plate versus evacuated tube solar collectors pdf. The overall efficiency of a parabolic trough collector is a function of both the fraction of direct normal radiation absorbed by the receiver the optical efficiency and the heat lost to the environment when the receiver is at operating temperature. Pdf simulation of the temperature and heat gain by solar. Today, the concentration ratio of a parabolic trough collector of width between 1m and 2m is limited to. Cnc precision is used in the process of making our parabolic troughs.
Parabolic trough collector is a viable technology for harnessing solar energy for industrial process heat in cyprus 58. The reflector, which concentrates the sunlight to a focal line or focal point, has a parabolic shape. Pdf in this paper are presented the results of designing a parabolic trough solar. Simplified methodology for designing parabolic trough. Redressable parabolic trough solar collector back to home. Pdf modeling and experimental investigation of parabolic trough. It reflects the solar radiation and transfers it to the receiver tube. Parabolic trough solar water heating is one of several well proven solar. List of parabolic trough companies, manufacturers and suppliers.
Highcapacity offgrid solar generator rev 4 wiring diagram, parts list, design worksheet duration. Modeling and experimental investigation of parabolic trough solar collector. The resulting mirror is made to track the sun, focusing the suns rays on a receiver tube. The csp parabolic trough collector markets brief history has been characterised by a tug of war between three main collector types. Modeling of a parabolic solar collector system for water desalination. System 1 includes a ptc coupled to an orc which feeds an absorption heat pump machine. Parabolic trough collectors are the most developed technology with regard to. Concentrating solar collectors use shaped mirrors or lens to provide higher temperatures that flat plate collectors. 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. Solar troughs are easy to assemble and takes 2 men approximately 1 week to assemble. A parabolic trough collector includes a parabolic mirror support structure with a parabolic mirror surface applied thereto, and an absorber support structure supporting an absorber tube. A parabolic cylinder mirror is formed by stretching a flexible reflecting material between two parabolic end formers.
Flash steam cannon solar powered gun trough mirror free energy in. Energy equations for computation of parabolictrough. Energies free fulltext a comparative study of solar. Design and manufacturing of parabolic trough solar collector system for a developing country pakistan. 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. To determine the empirical correlation for both free and forced convection. The initial installation cost of these parabolic trough solar collectors consti. The operating temperature of the system is in the range of 500700k and the geometric concentration ratio of the parabolic trough system is in the range of 30100 table 8.
Pdf design and construction of a parabolic trough solar. The solar option and solar collector solar energy is a very large, inexhaustible of energy, the power from the sun intercepted. Recent studies that analyze the deployment of solar. Plant overview figure 1 shows a process flow diagram that is representative of the majority of parabolic trough solar power plants in operation today. A solar thermal collector collects heat by absorbing sunlight. A parabolic trough employs parabolic mirrors that act as collectors can be coated silver or polished for more efficiency. Collector the collector of a parabolic trough is an assembly of curved shaped reflectors arranged on a structural steel framework. Gas, and energy commons this dissertation is brought to you for free and open access by the graduate school at scholar commons. Pdf abstractsolar collector in the shape of a parabolic mirror reflects the incident solar energy on the longitudinal axis of the. The parabolic mirror support structure and the absorber support structure are mechanically fastened in a fixed position relative to one another on a torsion tube that is arranged below the parabolic mirror.
A precision made parabolic trough can focus more solar on a receiver tube collector resulting in creating more solar energy. Pdf design analysis of solar parabolic trough thermal. Analysis and design consideration of solar steam generation plant using parabolic trough collector. Solar collector in the shape of a parabolic mirror reflects the incident solar energy on the longitudinal axis of the solar 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. A parabolic trough is made of a number of solar collector modules scm fixed together to move as one solar collector assembly sca.
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