Design of a parabolic trough solar collector using a. Higher fossil fuel prices encouraged the governments to take new measures. T w t f i l t r ation, m i c r o p r o c e s s o r. Learn how to get pdf files to open in the firefox window and fix common problems like blank pages. The annual peak efficiency of each plant is 28% and average efficiency is 15%.
Parabolic trough power plants constitute the biggest share of the installed concentrating solar power technology. Parabolic trough collector ptc is the most mature concentrating technology which is used in a great variety of thermal applications. This facilit y consisted of two parabolic trough solar fields with a total mirror aperture area of 7602 m 2. Mar 18, 20 more details on the parabolic through collectors the plant uses abengoa solars astro abengoa solar trough parabolic trough collectors.
Well walk you through a couple ways to transform editable documents into. 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. Towards standardization of insite parabolic trough collector testing in solar thermal power plants aip conf. 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. Modelling of solar thermal power plant using parabolic. Tunisia, libya and egypt are defined according to shape files of these countries. You can also find related information on parabolic trough principles and research and development. The aim of the research project is to test the solartothermal energy efficiency of a tracking linefocus parabolic trough solar collector ptsc. Many studies on the design, analysis and optimization of ptc systems are available, but no clear. Advanced lowcost receiver for parabolic trough solar power. It is only possible to efficiently produce power with an optimal angular position of the parabolic mirror. Parabolic trough collector technology abengoa solar. 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. Note that the parabolic trough collector optical performance depends on the diameter of the hce, which was varied during optimization.
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. Parabolic trough solar collector usually consists of a parabolic solar energy concentrator, which reflects solar energy into an absorber. However, 2 mirrors can also be used which are inclined at an angle to make the shape of a parabola. Solar energy conversion and photoenergy systems vol. Presently, it is the most advanced and lowest cost large scale solar power technology available. 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. A simple parabolic trough collector is designed, fabricated and tested. A parabolic trough is a type of solar thermal energy collector used in csp plants concentrated solar power. The number of parabolic troughs can be varied according to the system s requirements.
The system consists of design of parabolic trough collector, vacuum pump, mobile adsorber and evaporator. The reflector, which concentrates the sunlight to a focal line or focal point, has a parabolic shape. The pdf file format allowed documents to be sent easily and viewed without. Us8418687b2 parabolic solar trough systems with rotary. 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. Survey of thermal storage for parabolic trough power plants. Modeling of a parabolic trough solar field for acceptance. The latest quick edition of the parabolic trough self assessment book in pdf containing 49 requirements to perform a quickscan, get an overview and share with stakeholders. Parabolic trough designs everything about solar energy. Mountain time you must register to participate registration is free, but space is limited more details, registration information, and recordings of. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. Main reflective materials that are used include silver and alluminium, which are normally placed on a glass plate. You can browse a project profile by clicking on the project name. The parabolic trough technology is the most mature available on the market with a track record since the 1980s.
Medium temperature solar concentrators parabolictroughs. The collectors reflect the incident solar radiation onto its focal line toward a receiver that absorbs the concentrated solar energy to raise the temperature of the fluid inside it as shown in fig. Bringing you a prosperous future where energy is clean. These make it easy to navigate through a long document. Parabolic trough power plants use parabolic trough collectors to concentrate the direct solar radiation onto a tubular receiver. Parabolictrough solar concentrating systems are parabolicshaped collectors made of reflecting materials. Parabolic trough collector water heating efficient. Thermal output analysis of a designed parabolic trough solar field for moderate temperature industrial load rizwan masood mechanical engineering department universiti teknologi petronas, perak, malaysia rizwan. Direct steam generation in parabolic trough collectors. Parabolic trough receiver heat collection element manufacturer. Angular position control of parabolic trough systems. This parabolic trough 73% efficient solar power world. Modeling parabolic trough systems, june 2014 youtube. 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.
Aron dobos all sessions last one hour and begin at 1 p. Heat losses from parabolic trough solar collectors mohamad. Parabolic trough collector free download as powerpoint presentation. Luz system three solar collector assembly ls3 sca 1. 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. Firstly, the second generation of the parabolic trough system developed by the company, senertrough 2. It reflects the solar radiation and transfers it to the receiver tube. It is used to predict the performance of a given parabolic trough and compare competing technologies. The parabolic trough receiver is designed to promote the solar fields to be more productive and more costcompetitive. Parabolic trough collector cost update for the system advisor model sam parthiv kurup and craig s. Parabolic troughs can be used to provide process heat for industrial processes at lowest cost. Material and component specifications single axis tracked. Tracking is particularly important in solar energy collection systems that operate under concentrated sunlight. 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.
Thermal output analysis of a designed parabolic trough. 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. Pdf daily performance of parabolic trough solar collectors. Initially, a thermodynamic model of ptc is developed using engineering equation solver ees having a capacity of around 3 kw.
Parabolic trough design pdf for industrial production of elastic closed parabolic trough boxes will be described in another article later. Parabolic trough collector parabolic trough is a device in a parabolic shape, having small focal length of. The operating temperature of the system is in the range of 500700k and the geometric concentration ratio of the parabolictrough system is in the range of 30100 table 8. For complex csp systems, determining the expected solar. Organized in a data driven improvement cycle rdmaics recognize, define, measure.
Csp parabolic trough and power tower performance analysis through the southern african universities radiometric network sauran data a. 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. Parabolic trough plant an overview sciencedirect topics. The absorber is a tube, painted with solar radiation absorbing material, located at the focal length of the concentrator, usually covered with a totally or partially vacuumed glass tube to minimize the heat. Figure 3 shows the annual electricity generation, efficiency and lec for all three meteo data files for a 50 mwe solar trough power plant with a variation of the solar field size. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. This heat can be stored in an insulated container and used during nighttime. Pdf eurotrough parabolic trough collector developed for. Hence test benches for the nondestructive measurement of thermal and optical performance of parabolic trough receivers have been developed. The skytrough is a high performance parabolic trough concentrating solar collector for use in. 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.
In which parabolic trough systems are likely to be cost effective, and. Department of aeronautics and astronautics school of. Fileopen solutions provide strong security through local aes256 encryption and granular policy. 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. Experimental study of parabolic trough collector ptc and. It is also capable of converting pdf files with object streams also known as. Parabolic trough power plants ptpp are thus far mostly developed csp thermal plants that are operating commercially. Uses parabolic mirrors to concentrate solar radiation on linear tube receiver. Fileopen systems inc adobe exchange partner program. The modeling parabolic trough systems webinar was presented on june 18, 2014 by michael wagner of nrel. Dinter1, 3 1department of mechanical and mechatronic engineering, university of stellenbosch, private bag x1, matieland 7602, stellenbosch, south africa. The parabolic trough collectors ptc consist of solar collectors mirrors, heat receivers and support structures. Large fields of parabolic trough collectors supply the thermal energy used to produce steam for a rankine steam turbinegenerator cycle.
Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Federal technology parabolictrough solar alert water heating. Hine is the most experienced company offering hydraulics in solar applications and this allows us to offer cost competitiveness to our clients. Adobe systems made the pdf specification available free of charge in 1993. Each component is designed and developed in the institute laboratory. The trough is parabolic along one axis and linear in the orthogonal axis. Hundreds of these parabolic trough systems are arranged on large fields in parallel rows along a northsouth axis, focusing the suns rays. Parabolic trough development was also taking place in europe and culminated with the construction of the iea smal l solar pow er systems projectdistributed collector system sspsdcs in tabernas, spain, in 1981. In order to achieve more efficient generating systems, a second generation of parabolic troughs that operate at temperatures higher than 400 c is being developed.
The large contact surface of the helical gearing allows the l30. When taking a screenshot under mac os x versions 10. Parabolic trough power plants use a curved, mirrored trough which reflects the direct solar radiation onto a glass tube containing a fluid also called a receiver, absorber or collector running the length of the trough, positioned at the focal point of the reflectors. Modelling of solar thermal power plant using parabolic trough. Include ovation as part of your automation strategy to help overcome your csp parabolic trough plant challenges. Bringing you a prosperous future where energy is clean, abundant, reliable, and affordable solar energy technologies program concentrating solar power parabolic reflector technologies nevada solar one is the 3rd largest parabolic solar power plant in the world. View pdf files in firefox firefox help mozilla support.
Wherever possible, individual component is tested for base line performance. For clients engaged in building solar systems, hine helps accelerate implementation to gain a market advantage and capitalize on growth. The cfd analysis of solar parabolic trough system with. First is a helical hydraulic actuator with a sliding spline design. Abstracteven though most variations of solar concentrators have palmistry guide in urdu pdf been studied or. Control everything under the sun ovation distributed control and scada solutions for. Nine trough power plants in californias mojave desert provide the worlds largest generating capacity of solar electricity, with a combined output of 354 megawatts.
The receiver is a key component in the parabolic trough solar thermal power plant. Because of its singleaxis tracking, all the solar radiations fall parallel to its. Future power plants arizona abengoa solar is constructing a 280mw parabolic. Concentrating solar power csp projects that use parabolic trough systems are listed below alphabetically by project name. Solar electric generating systems segs 9 plants, 14 to 80 mw, 354 mw total built between 1984 1990. 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. Parabolic trough plants require a considerable amount of land that cannot be used concurrently for other purposes. Solar electric generating systems segs 9 plants, 14 to 80 mw, 354 mw total built between 1984 1990 3 sites. Thermal analysis of parabolic trough collector operating with mono and hybrid nanofluids article pdf available in sustainable energy technologies and assessments november 2017 with 680 reads. Daggett, kramer junction, and harper lake 30year power purchase agreements with southern california edison. New invention to make parabolic trough solar collector. Secondly, a single tank thermal storage system with molten salt which makes it possible to combine the two tanks that are currently needed into one single tank.
Key to our solution for concentrated solar power parabolic trough plants is the ovation expert distributed control and scada system. In the present work, new parabolic trough collector system with automatic tracking system which has been. Parabolic trough solar technology is credited by being synonymous with the very first application of solar energy. A solar field of parabolic troughs used to generate electricity. Simplified methodology for designing parabolic trough. Mar 23, 2016 parabolic trough collector systems produce heat at about 400c. This is the largest limitation on existing trough systems which the ringtrough eliminates. In a solar cooker, for example, food is placed at the focal line. Design, construction, and test of a miniature parabolic. The ls3 reflectors are made from hotformed mirrored glass panels, supported by the truss system that gives the sca its structural integrity. This method proposed a design chart called storage sizing graph, which obtains the optimum collector area for certain locations. Sep 03, 2010 it is used to predict the performance of a given parabolic trough and compare competing technologies. Plant overview figure 1 shows a process flow diagram that is representative of the majority of parabolic trough solar power plants in operation today. 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.
Pdfs through the ability to copy objects from one pdf file into another and to. Then, an experimental ptc system setup is established with a concentration ratio of 9. Csp performance is subject to a number of uncontrollable effects. Parabolic trough collector cost update for the system advisor. A mirror alignment measurement device, invented by rich diver, a researcher at sandia national laboratories, may soon make one of the most popular solar. A solar energy conversion device that uses a trough covered with a highly reflective surface to focus sunlight onto a linear absorber containing a working fluid that can be used to spin a turbine for electricity generation. Accessing pdf documents with assistive technology a. A simplified numerical methodology for designing parabolic trough solar energy systems was proposed by stine and harrigan 17. List of a few such installations is given as an annexure. Csp parabolic trough and power tower performance analysis. Thomas ruegamer molten salt for parabolic trough applications. Practical field alignment of parabolic trough solar concentrators in this paper a new technique for parabolic trough mirror alignment based on the use of an innovative theoretical overlay photographic top approach is described. The theoretic design principle of a closed parabolic trough box can be found in 1. Smallsized parabolic trough collector system for solar.
Parabolic trough collector power plant performance. Parabolictrough solar concentrating systems are an advanced and matured technology. A prototype system is then assembled and tested for possible applications. It would be attached to a base which would allow for proper angling of the parabolic trough.
The solar option and solar collector solar energy is a very large, inexhaustible of energy, the power from the sun intercepted. Eurotrough parabolic trough collector developed for cost efficient solar power generation article pdf available october 2011 with 1,265 reads how we measure reads. The current study presents a numerical and realtime performance analysis of a parabolic trough collector ptc system designed for solar airconditioning applications. The trough performance test code ptc provides a methodology for comparing the measured performance of a solar. Each sca is an independently tracking parabolic trough solar collector consisting of four major subsystems.
Existing commercial parabolic trough power plants use thermal oil as a heat transfer fluid, with working temperatures in the region of 400 c. Parabolictrough collector is a viable technology for harnessing solar energy for industrial process heat in cyprus 58. Pdf thermal analysis of parabolic trough collector. Practical field alignment of parabolic trough solar. Department of aeronautics and astronautics school of engineering massachusetts institute of technology graduate program s. Generally, in economic terms, by increasing the parabolic trough plant size, the cost of solar electricity is reduced. One file is based on groundmeasurements at the ground the other on satellite data. The plants are operating with thermal storage of 7. I medium temperature solar concentrators parabolic troughs collectors e. Introduction and purpose the graduate program in the department of aeronautics and astronautics at m.
Performance analysis of parabolic trough collector in hot climate. In this study, the daily performance of a ptc is investigated. The mirrors used in parabolic troughs are in the shape of a parabola and are usually of a single piece of unit. They consist of a solar field filled with hundreds or thousands of solar collector assemblies sca.
A smaller parabolic trough with a flexible pipe connecting the collector tube. In europe, the installed capacity of parabolic trough plants in operation reaches 1650 mw and 623 mw are under construction. The invention relates to a parabolic trough collector 14 comprising a parabolic mirror support structure 1 having a parabolic mirror surface applied thereto and an absorber support structure supporting an absorber tube 12, wherein both support structures are mechanically attached to each other in a fixed relative position on a torsion tube 2 which is disposed below the parabolic mirror. Ovation distributed control and scada solutions for. Unesco eolss sample chapters solar energy conversion and photoenergy systems vol.