Numerical simulation and design of a parabolic trough. Solar thermal evacuated tube collector parabolic trough. Performance analysis of parabolic trough collector in hot. No new experimental validation on the rest of the collector is required. Parabolic trough collector cost update for the system advisor model sam parthiv kurup and craig s. However, it is limited to a single or double factors for available system. The larger collector aperture area concentrates reflected direct solar radiation onto the smaller outer surface of the receiver tube. Parabolic trough collector free download as powerpoint presentation.
A parabolictrough 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. Fluid temperature control for parabolic trough solar collectors. Slope error measurement tool for solar parabolic trough. The parabolic trough system with storage tank the necessary instruments are attached to the apparatus. Pdf an overview on parabolic trough solar collector.
Parabolic trough power plants ptpp are thus far mostly developed csp thermal plants that are operating commercially. Collector the collector of a parabolic trough is an assembly of curved shaped reflectors arranged on a structural steel framework. Evacuated tubes absorb solar energy and convert it into heat for use in solar power applications. Abstract the eurotrough solar concentrating parabolic trough collector has been developed by a consortium from industry and research during the last. In a solar cooker, for example, food is placed at the focal line. Ptcs are employed in a variety of application including industrial steam production for electricity, industrial steam production.
Pdf performance evaluation of nanofluid on parabolic trough solar. Thermal assessment of selective solar troughs mdpi. Experimental study on the heat transfer characteristics of. An air conditioning system using a parabolic trough collector was developed and used in educational building 4. Parabolic trough power plants use parabolic trough collectors to concentrate the direct solar radiation onto a tubular receiver. The aim of the research project is to test the solartothermal energy efficiency of a tracking linefocus parabolic trough solar collector ptsc. I medium temperature solar concentrators parabolic troughs collectors e. The parabolic trough linear collector ptlc is a solar technology employed to convert solar radiation into thermal energy for commercial and industrial processes. It reflects the solar radiation and transfers it to the receiver tube. Cnc precision is used in the process of making our parabolic troughs. A wide variety of vacuum tube for parabolic trough collector options are available to you, such as split. For ls3 collectors normally electro hydraulic drives are. Numerical modelling of solar parabolic trough receiver.
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. This report updates the baseline cost for parabolic trough solar fields in the united states. Material and component specifications single axis tracked parabolic trough prepared by it power india. Comparison of two linear collectors in solar thermal plants. Thermal performance of a parabolic trough linear collector.
Unesco eolss sample chapters solar energy conversion and photoenergy systems vol. The total aperture area was 1,200 m 7 the system was able to pump 27,000 litres of water per minute. Heat transfer fluids for future parabolic trough solar. Details of this type of collector are given in chapter 3, section 3. Parabolic trough solar collector systems made more energy. The higher rim angles require more reflecting surface for same aperture area, consequently increased cost and weight of collector. Solar troughs are easy to assemble and takes 2 men approximately 1 week to assemble. T d accepted manuscript 1 1 experimental study on the heat transfer characteristics of 2 a low melting point salt in a parabolic trough solar 3 collector system 4 yuting wu 1, shanwei liu 1, yaxuan xiong 2, chongfang ma 1, yulong ding 3 5 1 key laboratory of enhanced heat transfer and energy conservation, ministry of education and key 6 laboratory of heat transfer and energy. Pdf comparison of two linear collectors in solar thermal. Nrelpo55041424 march 2007 parabolic troughs solar power plants parabolic trough solar power plants. The parabolic trough collector designed in solidworks and after analyzed in flow simulation studio. Large collector fields supply the thermal energy, which is used to drive a steam turbine, which, on its part, drives the electric generator. Each sca is an independently tracking parabolic trough solar collector consisting of four major subsystems. Therefore, in comparison to the current plant designs using oil, dsg requires experimental validation of the new receiver tube and interconnections between the collectors due to the increase in design operating pressure and temperature.
Solar collector in the shape of a parabolic mirror reflects the incident solar energy on the longitudinal axis of the solar collector. Parabolic trough solar collectors utilize a heat transfer fluid htf that flows through the receiver collecting and transporting solar thermal energy to the power. Acceptance test of solar collector fields models, measurement, evaluation, uncertainty. The paper starts by looking at the changes currently in progress in the power industry, and then looks at the cost of power from. At present several projects are under development in spain, in the usa, egypt, morocco, mexico, algeria and iran. My interest is in using the glass evacuated tubes not as a component of a commercial collector, but as an insulated collector for a diy parabolic trough concentrating collector.
Parabolic trough collector an overview sciencedirect. The global energy crisis is of great concern to us and we believe that a parabolic solar collector may be a possible immediate. Utilization of parabolic trough collector for generation. Patented parabolic trough reflectors, uses the latest technology. The plants are operating with thermal storage of 7. Parabolic trough collector model designed in solidworks, a trough dimensions b evacuated tube dimensions. Parabolictrough technology roadmap january 1999 page 2 introduction technology roadmapping the u. Main reflective materials that are used include silver and alluminium, which are normally placed on a glass plate. Parabolic trough solar collector systems made more energy efficient date. 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. 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. Material and component specifications single axis tracked.
Pdf design and manufacturing of parabolic trough solar. A multitude of the researches focus on the factors of the thermal efficiency of a parabolic trough solar collector, that is, the opticalthermal efficiency. In this work, a solar parabolic trough collector ptc has been dimensioned and its technical feasibility has been evaluated in order to be used as ammonia direct vapor generator in an advanced absorption aircooled solargax cycle of 10. The chosen trough for testing of receivers of 70100 mm diameter has an aperture width of 2. Direct steam generation in parabolic trough collectors. Parabolic trough collector water heating efficient. Parabolic trough solar thermal system parabolic trough. It generates chilled and heated water, depending on the season, for space cooling and heating. While the economic aspect was addressed through the estimation of the levelized cost of electricity lcoe generated by a 50mw plant.
Design and development of an educational solar tracking. The ls3 reflectors are made from hotformed mirrored glass panels, supported by the truss system that gives the sca its structural integrity. Xina solar one, the third solar thermal plant in sa is. 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. Picture courtesy of ausra stalixs approach nearly all the parabolic solar plants in existence today have incorporated luz parabolic trough collector designs. 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. This system incorporates a parabolic trough collector of 52 m2. Parabolic trough power plants are the only types of solar thermal power plant technology with existing commercial operating systems. The annual peak efficiency of each plant is 28% and average efficiency is 15%. Sensitive analysis for the efficiency of a parabolic. Geometric data for the three parabolic trough collectors. Kaxu solar one was the first power plant in operation that featured parabolic trough collector technology, a 100 mw output and 2. A small rim angle makes relatively flat trough but with a longer focal length 9. Parabolic trough solar thermal power plants are at present the cheapest option for utility scale solar electricity production.
Medium temperature solar concentrators parabolictroughs. The parabolic trough solar collector is developed using easily and locally. The biggest application of this type of system is the nine southern california power plants known as solar. A simplified numerical methodology for designing parabolic trough solar energy systems was proposed by stine and harrigan 17. 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. Heat transfer analysis and numerical simulation of a parabolic trough solar collector a. Solar tubular receiver in parabolic trough concentrators, j. Modelling of solar thermal power plant using parabolic. It is sold as a disassembled flat kit at very low prices. Department of energy doe has adopted the planning method known as technology roadmapping for much of its program development. Parabolic trough collector cost update for the system. With the addition of a rotatable tracking parabolic trough behind a single evacuated tube, it is possible to increase the heat capture significantly, up to 815x safely. Influences on shape accuracy of parabolic trough mirror panels mounted onto solar collectors simon schneider dlr, institute of solar research, cologne, germany. This line is called the focal axis of the parabolic collector.
Numerical simulation of a parabolic trough solar collector with n on uniform solar flux conditions b y coupling fvm and mcrt method, solar energy, vol. 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. Pdf an overview on parabolic trough solar collectors. Fluid temperature control for parabolic trough solar collectors schindwolf, rudolph on.
Redressable parabolic trough solar collector back to home. A detailed numerical simulation model that takes into account the geometry and the optical, thermal and fluid dynamic. Today, the concentration ratio of a parabolic trough collector of width between 1m and 2m is limited to about 50 times under industrial manufacturing conditions and with high cost, while our method can achieve an effective and efficient concentration ratio of over 80. Although minor variations of the parabolic trough have been introduced, the basic design remained relatively the same for the last 25 years.
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. This is determined by measuring the temperature rise of water as it flows through the receiver of the collector when it is properly focused. 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 fundamental characteristics of the performance of a parabolic trough solar collector are its concentration ratio and its optical efficiency. Numerical modelling of a parabolic trough solar collector.
Influences on shape accuracy of parabolic trough mirror. Fluid temperature control for parabolic trough solar. Pdf in the present work, the performance of aluminum oxide and deionized. The technical aspect was addressed by developing an empirical mathematical model for the performance of a parabolic trough demonstration plant installed in the dead sea area. 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.
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