Gotowe bibliografie tematyczne / Solar Parabolic Trough Collector

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Gotowa bibliografia na temat „Solar Parabolic Trough Collector”

Autor: Grafiati
Data publikacji: 6 września 2023
Data aktualizacji: 7 września 2023

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Artykuły w czasopismach na temat "Solar Parabolic Trough Collector"

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Jassim Jaber, Hazim, Qais A. Rishak i Qahtan A. Abed. "Using PCM, an Experimental Study on Solar Stills Coupled with and without a Parabolic Trough Solar Collector". Basrah journal of engineering science 21, nr 2 (1.06.2021): 45–52. http://dx.doi.org/10.33971/bjes.21.2.7.

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Performance a double slope of the solar still Integrated With or without parabolic trough collector is investigated experimentally. To improve the output of a double slope solar still, a number of initiatives have been undertaken, using wax as a phase change material (PCM) with a parabolic trough collector. A parabolic trough collector (PTC) transfers incident solar energy to the solar still through a water tube connected to a heat exchanger embedded in used microcrystalline wax. Experiments were carried out after orienting the basin to the south and holding the water depth in the basin at 20 mm. According to the results obtained, the solar stills with parabolic trough collector have higher temperatures and productivity than solar stills without parabolic trough collector, as well as the ability to store latent heat energy in solar still, allowing fresh water to condense even after sunset. In addition, the parabolic trough collector with phase change material in the double slope solar improves productivity by 37.3 % and 42 %, respectively.
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M. Anil Kumar, K. Sridhar i B. Devika. "Performance of cylindrical parabolic solar collector with the tracking system". Maejo International Journal of Energy and Environmental Communication 3, nr 1 (17.03.2021): 20–24. http://dx.doi.org/10.54279/mijeec.v3i1.245096.

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A parabolic solar collector collects the radiant energy emitted from the sun and focuses on a point. Parabolic trough collectors are the low-cost implementation of concentrated solar power technology that focuses incident sunlight onto a tube filled with a heat transfer fluid. However, the fundamental problem with the cylindrical parabolic collector without tracking was that the solar collector does not move with the sun's orientation. The development of an automatic tracking system for cylindrical parabolic collectors will increase solar collection and the efficiency of devices. The present study of this project work presents an experimental platform based on the design, development, and performance characteristic of water heating by tracking solar cylindrical parabolic concentrating system. The tracking mechanism is to be made by stepper motor arrangement to receive the maximum possible energy of solar radiation as it tracks the sun's path. The performance of the parabolic trough collectors is experimentally investigated with the water circulated as heat transfer fluid. The collector efficiency is calculated.
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Mohana, N., K. Karunamurthy i R. Suresh Isravel. "Analysis of outlet temperature of parabolic trough collector solar water heater using machine learning techniques". IOP Conference Series: Earth and Environmental Science 1161, nr 1 (1.04.2023): 012001. http://dx.doi.org/10.1088/1755-1315/1161/1/012001.

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Abstract The green sources of energy are ocean, hydro, solar, tidal, wave, wind, biomass, etc. Among all these wind, solar and hydro are mainly used. Particularly, solar energy has various applications such as atmospheric energy balance studies, solar energy collecting systems, analysis of the thermal load on buildings, etc. Parabolic trough collector (PTC) based solar water heater (SWH) gains a significant role in water heating systems. Parabolic trough collector is a concentrating type collector which collects the solar radiation in copper tube placed in the focal point of the parabolic trough. It also generates a high temperature which is suitable for steam generation. The main goal of this paper is to predict the outlet temperature of parabolic trough collector solar water heater with time and temperature for different days using various machine learning techniques.
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Eck, M., i W. D. Steinmann. "Modelling and Design of Direct Solar Steam Generating Collector Fields". Journal of Solar Energy Engineering 127, nr 3 (20.07.2005): 371–80. http://dx.doi.org/10.1115/1.1849225.

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The direct steam generation (DSG) is an attractive option regarding the economic improvement of parabolic trough technology for solar thermal electricity generation in the multi megawatt range. According to Price, H., Lu¨pfert, E., Kearney, D., Zarza, E., Cohen, G., Gee, R. Mahoney, R., 2002, “Advances in Parabolic Trough Solar Power Technology,” J. Sol. Energy Eng., 124 and Zarza, E., 2002, DISS Phase II-Final Project Report, EU Project No. JOR3-CT 980277 a 10% reduction of the LEC is expected compared to conventional SEGS like parabolic trough power plants. The European DISS project has proven the feasibility of the DSG process under real solar conditions at pressures up to 100 bar and temperatures up to 400°C in more than 4000 operation hours (Eck, M., Zarza, E., Eickhoff, M., Rheinla¨nder, J., Valenzuela, L., 2003, “Applied Research Concerning the Direct Steam Generation in Parabolic Troughs,” Solar Energy 74, pp. 341–351). In a next step the detailed engineering for a precommercial DSG solar thermal power plant will be performed. This detailed engineering of the collector field requires the consideration of the occurring thermohydraulic phenomena and their influence on the stability of the absorber tubes.
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Pikra, Ghalya, Agus Salim, Andri Joko Purwanto i Zaidan Eddy. "Parabolic Trough Solar Collector Initial Trials". Journal of Mechatronics, Electrical Power, and Vehicular Technology 2, nr 2 (12.03.2012): 57. http://dx.doi.org/10.14203/j.mev.2011.v2.57-64.

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Jyoti, Arun, Dr Prashant Baredar, Dr Hitesh Kumar i Asst Prof Ambuj Kumar. "“Design and Optimization of Solar Absorber Tube Using CFD Analysis”". SMART MOVES JOURNAL IJOSCIENCE 4, nr 3 (12.03.2018): 6. http://dx.doi.org/10.24113/ijoscience.v4i3.127.

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Parabolic trough solar collector is a solar thermal collector which works on solar energy, the efficiency of this collector depends on the thermal energy of sun. The main objective of this work to present an upto date literature review on the parabolic trough solar collector. During the literature survey from the various research paper related to parabolic trough solar collector it has been observed that there is a lot of research work have been done in the same field and still there is a large scope to work on the parabolic trough solar collector. From the literature review it has been also observed that many authors worked on numerical as well as experimental setups, many of them use various optimization technique which was validate by various simulation tools like ANSYS, computational fluids dynamics tool Fluent and many more.
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Lüpfert, Eckhard, Klaus Pottler, Steffen Ulmer, Klaus-J. Riffelmann, Andreas Neumann i Björn Schiricke. "Parabolic Trough Optical Performance Analysis Techniques". Journal of Solar Energy Engineering 129, nr 2 (18.06.2006): 147–52. http://dx.doi.org/10.1115/1.2710249.

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Analysis of geometry and optical properties of solar parabolic trough collectors uses a number of specific techniques that have demonstrated to be useful tools in prototype evaluation. These are based on photogrammetry, flux mapping, ray tracing, and advanced thermal testing. They can be used to assure the collector quality during construction and for acceptance tests of the solar field. The methods have been applied on EuroTrough collectors, cross checked, and compared. This paper summarizes results in collector shape measurement, flux measurement, ray tracing, and thermal performance analysis for parabolic troughs. It is shown that the measurement methods and the parameter analysis give consistent results. The interpretation of the results and their annual evaluation give hints on identified relevant improvement potentials for the following generation of solar power plant collectors.
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Sukanta, Anbu Manimaran, M. Niranjan Sakthivel, Gopalsamy Manoranjith i Loganathan Naveen Kumar. "Performance Enhancement of Solar Parabolic Trough Collector Using Intensified Ray Convergence System". Applied Mechanics and Materials 867 (lipiec 2017): 191–94. http://dx.doi.org/10.4028/www.scientific.net/amm.867.191.

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Solar Energy is one of the forms of Renewable Energy that is available abundantly. This work is executed on the enhancement of the performance of solar parabolic trough collector using Intensified Ray Convergence System (IRCS). This paper distinguishes between the performance of solar parabolic trough collector with continuous dual axis tracking and a fixed solar parabolic trough collector (PTC) facing south (single axis tracking). The simulation and performance of the solar radiations are visualized and analyzed using TRACEPRO 6.0.2 software. The improvement in absorption of solar flux was found to be enhanced by 39.06% in PTC using dual axis tracking, absorption of solar flux increases by 52% to 200% in PTC receiver using perfect mirror than PTC using black chrome coating.
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Zaidan, Maki Haj, Hameed Jasim Khalaf i Ahmed Mohamed Shaker. "Optimum Design of Parabolic Solar Collector with Exergy Analysis". Tikrit Journal of Engineering Sciences 24, nr 4 (1.12.2017): 79–87. http://dx.doi.org/10.25130/tjes.24.4.10.

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This research deals with optimum design of parabolic solar collector with exergy analysis, a mathematical model built to reach the optimum design for the parabolic trough solar collector by three main parts. The first part concentrated on optimal design depends on the measured values of the solar intensity radiation fell on the city of Kirkuk and to obtain solar absorbed radiation, while the second part revolves on energy analysis of parabolic solar collector, and the final part was carried out exergy analysis of parabolic trough solar collector. The exergy efficiency took as a measurement to found the optimum operation condition (inlet water temperature and mass flow rate) and design parameter (concentration ratio, length solar collector and width solar collector). The design depended on the climatic conditions of the city of Kirkuk after it measured, also it show’s the importance of using exergy analysis in the design by studying the impact of some of the basic transactions of the solar system.
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Zedan, Maki Haj, Hameed Jasam Khalaf i Ahmed M. Shaker. "Optimum Design of Parabolic Solar Collector with Exergy Analysis". Tikrit Journal of Engineering Sciences 24, nr 4 (1.12.2017): 49–57. http://dx.doi.org/10.25130/tjes.24.4.06.

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This research deals with optimum design of parabolic solar collector with exergy analysis, a mathematical model built to reach the optimum design for the parabolic trough solar collector by three main parts. The first part concentrated on optimal design depends on the measured values of the solar intensity radiation fell on the city of Kirkuk and to obtain solar absorbed radiation, while the second part revolves on energy analysis of parabolic solar collector, and the final part was carried out exergy analysis of parabolic trough solar collector. The exergy efficiency took as a measurement to found the optimum operation condition (inlet water temperature and mass flow rate) and design parameter (concentration ratio, length solar collector and width solar collector). The design depended on the climatic conditions of the city of Kirkuk after it measured, also it show’s the importance of using exergy analysis in the design by studying the impact of some of the basic transactions of the solar system.
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Rozprawy doktorskie na temat "Solar Parabolic Trough Collector"

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Brooks, Michael John. "Performance of a parabolic trough solar collector". Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/984.

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Hachicha, Ahmed Amine. "Numerical modelling of a parabolic trough solar collector". Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/129729.

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Concentrated Solar Power (CSP) technologies are gaining increasing interest in electricity generation due to the good potential for scaling up renewable energy at the utility level. Parabolic trough solar collector (PTC) is economically the most proven and advanced of the various CSP technologies. The modelling of these devices is a key aspect in the improvement of their design and performances which can represent a considerable increase of the overall efficiency of solar power plants. In the subject of modelling and improving the performances of PTCs and their heat collector elements (HCEs), the thermal, optical and aerodynamic study of the fluid flow and heat transfer is a powerful tool for optimising the solar field output and increase the solar plant performance. This thesis is focused on the implementation of a general methodology able to simulate the thermal, optical and aerodynamic behaviour of PTCs. The methodology followed for the thermal modelling of a PTC, taking into account the realistic non-uniform solar heat flux in the azimuthal direction is presented. Although ab initio, the finite volume method (FVM) for solving the radiative transfer equation was considered, it has been later discarded among other reasons due to its high computational cost and the unsuitability of the method for treating the finite angular size of the Sun. To overcome these issues, a new optical model has been proposed. The new model, which is based on both the FVMand ray tracing techniques, uses a numerical-geometrical approach for considering the optic cone. The effect of different factors, such as: incident angle, geometric concentration and rim angle, on the solar heat flux distribution is addressed. The accuracy of the new model is verified and better results than the Monte Carlo Ray Tracing (MCRT) model for the conditions under study are shown. Furthermore, the thermal behaviour of the PTC taking into account the nonuniform distribution of solar flux in the azimuthal direction is analysed. A general performance model based on an energy balance about the HCE is developed. Heat losses and thermal performances are determined and validated with Sandia Laboratories tests. The similarity between the temperature profile of both absorber and glass envelope and the solar flux distribution is also shown. In addition, the convection heat losses to the ambient and the effect of wind flow on the aerodynamic forces acting on the PTC structure are considered. To do this, detailed numerical simulations based on Large Eddy simulations (LES) are carried out. Simulations are performed at two Reynolds numbers of ReW1 = 3.6 × 105 and ReW2 = 1 × 106. These values corresponds to working conditions similar to those encountered in solar power plants for an Eurotrough PTC. The study has also considered different pitch angles mimicking the actual conditions of the PTC tracking mechanism along the day. Aerodynamic loads, i.e. drag and lift coefficients, are calculated and validatedwith measurements performed in wind tunnels. The indepen-dence of the aerodynamic coefficients with Reynolds numbers in the studied range is shown. Regarding the convection heat transfer taking place around the receiver, averaged local Nusselt number for the different pitch angles and Reynolds numbers have been computed and the influence of the parabola in the heat losses has been analysed. Last but not the least, the detailed analysis of the unsteady forces acting on the PTC structure has been conducted by means of the power spectra of several probes. The analysis has led to detect an increase of instabilities when moving the PTC to intermediate pitch angles. At these positions, the shear-layers formed at the sharp corners of the parabola interact shedding vortices with a high level of coherence. The coherent turbulence produces vibrations and stresses on the PTC structure which increase with the Reynolds number and eventually, might lead to structural failure under certain conditions.
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Alsaady, Mustafa Mohammed H. "Innovative design for ferrofluids based parabolic trough solar collector". Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/48221/.

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The demand for modern energy services is increasing rapidly. Solar energy has the potential to meet a significant share of the world’s energy request. Solar energy is one of the cleanest renewable forms with little or no effect on the environment. The concentrating solar power is one of the methods to harvest sun’s energy. Concentrating solar power has the advantage of easier energy storage compared to photovoltaic systems. However, the cost of energy generated by those systems is higher than conventional energy sources. It is necessary to improve the performance of concentrating solar power to make them cost competitive. Moreover, few countries such as Saudi Arabia are moving from energy based on fossil fuel to renewable energy, therefore, improving the performance of concentrating solar systems and reducing their cost is considered to emulate photovoltaic systems. This research aims to develop an innovative design of parabolic trough solar collector that uses magnetic nanofluids as a heat transfer fluid to enhance the thermal efficiency compared to conventional parabolic trough. Based on past researches, new parabolic trough design is then proposed and investigated. Ferromagnetic nanoparticles dispersed in common heat transfer fluids (ferrofluids) exhibit better thermos-physical properties compared to the base fluids. By applying the right magnetic intensity and magnetic field direction, the thermal conductivity of the fluid increased higher than typical nanofluids. Moreover, the ferrofluids exhibit excellent optical properties. The external magnetic source is installed to alter the thermo-physical properties of the fluid. This thesis is comprised of four studies including two experimental studies, one heat transfer analysis, and one economic and environmental study. A small scale parabolic trough collector was manufactured and assembled at the laboratory based on the British Standards. A steady-state method was used to measure the performance of the parabolic trough collector in corresponding studies. The performance of the ferrofluids as a heat transfer fluid was compared to the base fluid. The two experimental studies differ in the absorber used. The two absorbers used were a conventional non-direct absorber and a direct absorber without a selective surface that allows ferrofluids to absorb the incoming solar irradiation directly. The effects of nanoparticle concentration, anti-foaming, external magnetic field intensity were investigated. The volume fraction of nanoparticles was 0.05%, 0.25%, and 0.75%. Three different magnetic field intensities were investigated, 3.14 mT, 6.28 mT, and 10.47 mT. Using ferrofluids to enhance the heat transfer performance the efficiency of the ferrofluids solar collector was compared to the based fluid (water). The results show that the parabolic trough solar collector in the experiment has similar performance of flat-plate solar collectors. The efficiency of the collector improved when ferrofluids water used compared to water. Ferrofluids with low concentration improved the performance of the solar collector. The ferrofluids showed much better performance at higher reduced temperature with lower overall heat loss coefficient. Due to the non-Newtonian behaviour of the fluid, increasing the volume fraction of particles will suppress the enhancement. The pH of ferrofluids influences the behaviour of the fluid. pH values higher than 5 showed a Newtonian behaviour of the fluid. In the presence of magnetic field, the performance of the solar collector enhanced further. By increasing the magnetic field intensity, the absorbed energy parameter increased, and at higher magnetic field intensity, the rate of enhancement decreases due to the magnetic saturation of ferrofluids. In this study, the performance of non-direct absorption receiver was better than the direct absorption receiver. However, the performance of the collector with a direct absorption receiver and using ferrofluids in the presence of the external magnetic field in some cases was higher than the performance of non-direct receiver with water as heat transfer medium. The performance of ferrofluids based parabolic trough collector was theoretically investigated. The correlation, equations, and specifications used in the model were discussed in detail. The model was used to study two different parabolic trough designs. First, the parabolic trough was validated with the experimental results of AZTRAK platform. The results of the model show a good agreement with the experimental data. Thereafter, nanoparticles were added to the heat transfer fluid, and the performance of the collector with and without the presence of external magnetic field was determined. The performance of the collector did not change a lot unless the external magnetic field was present. Moreover, the effect of the glass envelope on the performance was observed. A glass cover with vacuum in the annulus has higher performance and less thermal loss. Second, the model was used to study the performance of the test rig ferrofluids based parabolic trough. The performance of the parabolic trough was first considered as concentrating collector and then as a non-concentrating collector. With the lack of an external magnetic field, the efficiency changed slightly, wherein the presence of the external magnetic field the performances of the collector enhanced and showed higher performances. In General, the presence of the magnetic field showed promising enhancement. Economic and environmental effects of using ferrofluids based solar collector compared to a flat-plate collector for household water heating systems. Results show that the ferrofluids based parabolic trough has lower payback period and higher economic saving at its useful life end than a flat-plate solar collector. The ferrofluids based collector has higher embodied energy and pollution offsets tan flat-plate collector. Moreover, if 50% insertion of ferrofluids based parabolic trough for domestic hot water could be achieved in Tabuk over 83,750 metric Ton of CO2 could be eliminated.
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Carrillo, Juan Felipe (Carrillo Salazar). "Mechanical development of an actuation system for a parabolic solar trough collector". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/83687.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 26).
This thesis documents my personal contribution to the development of a hydraulic-based actuation system for a solar trough collector. The goal of this project was to design the actuation system using hydraulic actuators for a four meter solar collector prototype in Pittsfield, New Hampshire. After considering several hydraulic system architectures and conducting in-depth analysis into two of them, the idler pulley scheme was chosen. This mechanism uses a double rod end hydraulic actuator connected to wire rope wrapped around a capstan drum and an idler pulley. The model was optimized for mechanical performance, and it is expected to be a more cost effective option than the existing actuation system in New Hampshire once the controls equipment required to actuate the hydraulic cylinders for the new design is specified.
by Juan Felipe Carrillo.
S.B.
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Woodrow, Oliver Rhys. "Characterisation of a parabolic trough collector using sheet metal and glass mirror strips". Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/62804.

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A novel type of parabolic trough collector was characterised using a very basic theoretical model. This model looked at an ideal case and provided a basic expectation that was compared to actual measurements. The model showed that greater improvements can be achieved if heat losses to the environment are limited or omitted. This can be achieved by using a glass shield to insulate the receiver in a vacuum to limit the effect wind has and therefore limit convective losses. The experimental characterisation of the PTC consisted of taking six different temperature measurements to better understand the energy balances taking place. Four different configurations were tested, using two different types of concentrator and in each case a receiver that was either unpainted or painted with a semi matte black paint. The different types of concentrator were either stainless steel sheet metal or discretised glass mirror strips, similar to a linear Fresnel collector. Experimental runs were conducted on cloudless days for an hour and 15 minutes. This allowed for three runs to be performed on a single day. Using the theoretical model and comparing it to the experimental data, an efficiency was calculated. This efficiency averaged 14 % when the receiver was unpainted and 13 % when the receiver was painted for the metal sheets. The glass mirror strips had average efficiencies of 54 % and 45 % for an unpainted and painted receiver respectively. The model is very basic and can be improved upon if more variables are taken into consideration, such as convective heat losses. It was also recommended that wind measurements are taken in future tests. A property looked at to evaluate the effectiveness of each type of configuration was the average energy supplied to the thermal heating fluid over the course of an experimental run. For this the averaged values over all the experimental runs conducted for stainless steel sheet metal were 258 W and 332 W for an unpainted and painted pipe respectively. When using the glass mirrors an average energy value of 1049 W was supplied when the pipe was unpainted and an average of 1181 W was gained in the runs conducted after the pipe had been painted. Painting the receiver had little to no effect. The surface temperature of the receiver after painting the pipe was not higher and a slight increase in the energy gained by water was observed. This was explained by inaccuracies during testing as scattered light may have caused an interference on some of the measurements. There were also human inaccuracies in testing which should be omitted in future tests by implementing, for one, a functional tracking system. Future tests should be designed in such a way to completely omit irradiance affecting the thermocouple taking the measurement. Glass mirrors fared far better than the stainless steel sheet metal counterpart. It was recommended that they are used as the concentrator of choice. Higher efficiencies were achieved and in some cases almost four times the energy was supplied to the water in the pipe. This was attributed to a much lower concentrator temperature, on average 11 °C lower than the temperature of the metal sheets, as well as a much better ability to concentrate sunlight onto a single focal point. However, the glass mirror strips were proven to be very fragile and as such, require protection from the elements. While the strips were lighter and caused less of a load during windy conditions, they were susceptible to oscillations from gusty wind. This led to a number of strips breaking and needed to be replaced. By discretising the strips into individual pieces, they had the benefit of only needing to replace the strips that were damaged. This is also true for all future runs. It is still recommended that a tarp be used to protect the glass mirrors. Using glass mirror strips as a concentrator combined LFC technology with PTC technology and a novel PTC design was achieved. The design still required the installation area of a PTC. The novel design was compared to Industrial Solar’s industrial LFC module, LF-11, as it shares many similarities to LFC technology. The peak thermal output of the rig was significantly lower at 346 W/m2 compared to the industrial value of 562 W/m2. However, the noteworthy differences in design and optimisation between the two modules meant the results achieved were comparable. It is expected that better and more comparable results can be realised once the inherent flaws in the design, such as tracking the sun, aperture size and adding a vacuum absorber, are addressed. It is recommended that more research and emphasis is put into this field as an alternative energy power plant for South Africa.
Dissertation (MEng)--University of Pretoria, 2017.
Chemical Engineering
MEng
Unrestricted
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Figueredo, Stacy L. (Stacy Lee) 1981. "Parabolic trough solar collectors : design for increasing efficiency". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68524.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 193-200).
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 efficiency and cost of the parabolic trough collector designs is influenced by structural stiffness, choice of materials, assembly tolerances, mirror cleanliness and wear. Current performance estimates of solar trough optical field efficiencies are 54.2% [1]. The goal of this research is to identify general methods and specific design concepts for achieving increased collector efficiency. This thesis has investigated improvements in the design of a parabolic trough module by looking first at the overall structural concept of the collector to reduce complexity while maintaining structural stability under wind loading conditions. In the process of evaluating the feasibility of one such concept, a monolithic reflector panel with a mirror film front surface, details related to the mirror surface efficiency were investigated. At the panel-structure to mirror interface, surface roughness of the underlying structural backing was studied to understand performance effects on the mirror film surface that would make one backing material potentially more suitable than another would. In this case it was found that three materials tested: gel-coated fiberglass, rolled aluminum, and rolled steel were all similarly effective when compared to a more expensive mirrored aluminum backing material. When looking at the integration of the larger structural changes with the factors that affect surface reflectivity of parabolic mirrors, it became apparent that contamination of the surfaces and cleaning were major factors in reduced module effectiveness. Given that the conceptual development of the structure is ongoing, research into contamination factors and potential cleaning solutions were considered in such a way that panel cleaning solutions could be integrated into the trough module design from the start. A vortex generator cleaning concept, which uses V-shaped extruded forms to create vortices over a mirror panel in the presence of flow over the surface, was tested as a passive cleaning solution.
by Stacy L. Figueredo.
Ph.D.
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Sotte, Marco. "Design, test and mathematical modeling of parabolic trough solar collectors". Doctoral thesis, Università Politecnica delle Marche, 2012. http://hdl.handle.net/11566/242075.

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La radiazione solare alla sua origine è una fonte di energetica ad alta exergia: il sole ha un’irradianza pari a 63 MW/m2. Ma all’arrivo sulla superficie terrestre questo flusso diminuisce drasticamente. Per questa ragione, quando si necessita di elevate temperature o elevate exergie si adottano sistemi solari a concentrazione. Fra tutte le possibili geometrie i concentratori solari parabolici assiali sono di gran lunga la tecnologia più adottata. Un campo di utilizzo dei PTC (parabolic trough collectors) è quello del calore destinato ai processi industriali: questa applicazione ha un elevatissimo potenziale anche alle latitudini dell’Europa centro-­‐meridionale. Nella presente tesi sono discussi i risultati di un progetto di ricerca (PTC.project) per lo studio dei PTC applicati alla domanda di calore dei processi industriali o di altre utenze nell’intervallo di temperatura fra 80 e 250 °C. Sono descritti la progettazione e la realizzazione di due prototipi di PTC, con informazioni complete riguardo alle caratteristiche geometriche, ai materiali e ai processi produttivi. Successivamente sono illustrati i risultati di test preliminari sui prototipi, assieme alle caratteristiche di un banco per il test di apparati solari a temperature comprese fra 10 e 150 °C. E’ poi esposto il modello matematico sviluppato per descrivere l’efficienza ottica e termica dei concentratori, completo delle routine per il calcolo della posizione del sole. Infine è esposto un ambiente per la simulazione dell’esercizio annuale di un campo di concentratori accoppiato ad uno specifico profilo di domanda termica. I risultati suggeriscono lo sviluppo di questa tecnologia nel panorama delle fonti di energia rinnovabile che dovranno essere adottate per raggiungere gli obiettivi energetici ed ambientali fissati in vari contesti internazionali. Ma saranno necessari forti investimenti se si vorrà imprimere un’accelerazione allo sviluppo dei PTC e delle tecnologie solari termiche in genere.
Solar radiation at its origin is a high-exergy energy source: the Sun has an irradiance of about 63 MW/m2. But on the Earth’s surface solar energy flow dramatically decreases. For this reason, when high temperatures or high-exergy need to be reestablished, concentrated solar systems are adopted. Among all possible geometries, parabolic trough collectors are by far the most widespread technology. A field of usage of PTCs is in industrial process heat: this application has a dramatic potential and can be adopted at latitudes like those of central and southern europe. In this thesis the results of research project (PTC.project) for the study of PTCs in IPH and other heat demands in the temperature range from 80 to 250 °C are exposed. The design and manufacture of two prototypes are described in detail, giving complete information on geometrical characteristics, materials and manufacturing processes. Then the results of preliminary tests on the mentioned prototypes are produced, together with the characteristics of a test bench designed to determine PTCs performances with water and heat transfer oil as working fluids in a temperature range from 10 to 150 °C. Then a mathematical model, able to determine the performance of any PTC is described: the model accounts for optical and thermal losses of the collector, and also contains a routine code to calculate the solar position. In the end a simulation environment for annual analysis of the performance of a PTC applied to a specific process heat demand load is presented and the results obtained on a realistic heat demand yearly profile are described. The energetic results suggest that there could be space for this technology in the variety of renewable energies that will be needed to meet international goals in terms of energy and environment in the nearest future. But the experience acquired also suggests that investments are needed if an acceleration on the spreading of PTCs and other CSP technologies is to be realized
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Nyberg, Fanny. "Evaluation of Convection Suppressor for Concentrating Solar Collectors with a Parabolic Trough". Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148543.

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Absolicon Solar Collector AB in Härnösand, Sweden, develops concentrating solar collectors with a parabolic trough. In the solar collector trough, there is thermal loss due to convection. A convection suppressor was made and used as a method to reduce thermal loss due to convection in the trough. The objective of the project was to evaluate the convection suppressor for solar collectors with a parabolic trough and its impact on the performance (thermal loss characteristics) in two different orientations of the trough, horizontal and inclined. The performance of the solar collector was first measured without the convection suppressor; these results were compared to two previous quasi-dynamical tests of the solar collector performance made by two different institutes, Research Institute of Sweden and SPF Institut für Solartechnik (Switzerland). The comparison was made to validate the test results from the tests without the convection suppressor, which matched. Secondly, when the convection suppressor was made and tested in the two different orientations, the results of the performance with and without the convection suppressor was evaluated as well as the convection suppressor itself. The results showed a significant improvement of the solar collector performance in the aspect of reduced thermal loss when the convection suppressor was used, hence higher efficiency.
Absolicon Solar Collector AB I Härnösand, Sverige, utvecklar koncentrerande solfångare med ett paraboliskt tråg. I solfångarens tråg uppstår termiska förluster som en följd av konvektion. En konvektionsreducerare tillverkades och användes som metod för att minska de termiska förlusterna i tråget. Målet med projektet var att testa och utvärdera konvektionsreduceraren för koncentrerande solfångare med ett paraboliskt tråg samt dess inverkan på verkningsgraden i två olika positioner för tråget, horisontell och lutande. För att kunna mäta konvektionsreducerarens inverkan på solfångaren mättes först solfångarens prestanda utan konvektionsreduceraren i de två olika positionerna, detta resultat användes som referens efter validering. Valideringen gjordes genom att resultatet jämfördes sedan med två andra prestandamätningar (quasi-dynamical test) av solfångaren gjorda av två olika institut, Research Institute of Sweden och SPF Institut für Solartechnik (Schweiz). Därefter, när konvektionsreduceraren var tillverkat och testad i de olika positionerna på samma sätt som mätningarna utan konvektionsreducerare, jämfördes resultaten med och utan konvektionsreducerareet samt att en utvärdering gjordes av dess inverkan. Resultatet visade en signifikant förbättring av solfångarens prestanda i form av minskade termiska förluster när konvektionsreduceraren användes och därav ökad verkningsgrad.
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Nation, Deju Denton. "A conceptual electrical energy storage (EES) receiver for solar parabolic trough collector (PTC) power plants". Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/5331/.

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This work outlines the conceptualization, modelling and design of a novel electrical energy storage (EES) receiver for use in solar parabolic trough collector (PTC) power plants. A hybridization of sodium sulphur (NaS) battery and parabolic trough collector (PTC) Technologies, the EES receiver concept could one day enable PTC power plants to operate 24 hrs using solar energy only, while simultaneously providing them significant ancillary power benefits. Modelling of the EES receiver operation is achieved using of a system of ten steady state (algebraic) equations and two transient (partial differential) temperature dependent equations. The method of solving the system consisted of precedence ordering and back substituting of the steady state equations to develop a single complex and highly non-linear algebraic equation, in terms of the main process heat flux ݍ′̇ ௖௢௡ௗ,௔௧,. This equation was solved with the assistance of the Microsoft Excel goalseek tool. For the partial differential equations, a one dimensional finite difference approximation, consisting of a forward difference predictor, and a modified central difference corrector was used in discretization. Visual Basic code was then written to solve the system at each increment, each time utilizing the solution obtained for the complex non-linear algebraic equation in ݍ′̇ ௖௢௡ௗ,௔௧. This allowed investigation of the initial heat-up and charge/discharge function of the conceptual solar field. Results of simulations indicate the concept is both promising and implementable and that the slightly higher heat losses in the order of 400 – 600 W/m (a direct result of the unavoidably larger size of the conceptual receiver), are seen to be insignificant when compared to the possible energy storage and power support benefits. Though NaS batteries are currently expensive, this condition is thought to be ephemeral, since cells are made from low cost and widely available materials. Thus falling battery prices (with future mass production) could make this novel energy storage concept worthy of evaluation in a prototype PTC power plant.
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Paetzold, Joachim Meinert. "A Wind Engineering Analysis of Parabolic Trough Concentrating Solar Power". Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/15256.

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This thesis aims at improving the understanding of the effects of the wind on parabolic trough Concentrating Solar Power technology. Parabolic trough power plants are often located in areas that are subjected to high wind speeds, as an open terrain without any obstructions is beneficial for the plant performance. The wind impacts both the structural requirements and the performance of the plant. The aerodynamic loads from the wind impose strong requirements on the support structure of the reflectors, and they also impact the tracking accuracy. On a thermal level the airflow around the glass envelope of the receiver tube cools its outer surface through forced convection, thereby contributing to the total heat loss of the system. The influence of the shape and design of the trough is studied with the aim to minimise wind loads and thermal losses and, thus, contribute to making parabolic trough technology more efficient and hence reduce the cost of the generated electricity. Starting with an investigation on the level of a single row of collectors, the influence of different trough depths on the wind effects — the aerodynamic loads, as well as the thermal effects — is analysed via numerical simulations that are validated against experimental data from wind tunnel tests. While a deeper trough geometry leads to higher forces than a shallow one, it also significantly reduces the wind speed around the receiver and hence the thermal loss on its outer surface. Based on these results alterations to the standard trough design of a continuous parabolic shape are undertaken, analysed in numerical simulations, and validated in wind tunnel experiments. A staggered reflector layout with different focal lengths in different sections of the trough is found to be able to reduce the wind loads by up to 24%,while some designs also retain the sheltering effect on the receiver. Various numerical simulation approaches for an adequate representation of the wind effects on individual rows of collectors, as well as in a solar field are investigated and compared. For the simulation of a solar field, time-averaged simulations of a large domain with several collector rows are compared with a transient simulation with stream-wise periodic boundary conditions. At the level of an individual collector row, the performance and results of a transient scale resolving simulation are compared with those of a simulation using synthetic turbulence generation at the inlet boundary.
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Książki na temat "Solar Parabolic Trough Collector"

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. Parabolic Trough Solar Collectors. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-08701-1.

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Stynes, J. Kathleen. Slope error measurement tool for solar parabolic trough collectors: Preprint. [Golden, Colo.]: National Renewable Energy Laboratory, 2012.

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Forristall, R. Heat transfer analysis and modeling of a parabolic trough solar receiver implemented in Engineering Equation Solver. Golden, Colo: National Renewable Energy Laboratory, 2003.

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Heath, Garvin. LCA of parabolic trough CSP: Materials inventory and embodied GHG emissions from two-tank indirect and thermocline thermal storage. Golden, CO: National Renewable Energy Laboratory, 2009.

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Gawlik, Keith. SkyFuel parabolic trough optical efficiency testing. Golden, Colo.]: National Renewable Energy Laboratory, 2010.

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Turchi, Craig S. Gas turbine/solar parabolic trough hybrid designs: Preprint. Golden, CO]: National Renewable Energy Laboratory, 2011.

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Coccia, Gianluca, Giovanni Di Nicola i Alejandro Hidalgo. Parabolic Trough Collector Prototypes for Low-Temperature Process Heat. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27084-5.

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National Renewable Energy Laboratory (U.S.), red. Line-focus solar power plant cost reduction plan. Golden, Colo: National Renewable Energy Laboratory, 2010.

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Mehos, Mark S. Acceptance performance test guideline for utility scale parabolic trough and other CSP solar thermal systems: Preprint. Golden, CO: National Renewable Energy Laboratory, 2011.

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Heath, Garvin A. Life cycle assessment of a parabolic trough concentrating solar power plant and impacts of key design alternatives: Preprint. Golden, CO: National Renewable Energy Laboratory, 2011.

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Części książek na temat "Solar Parabolic Trough Collector"

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. "Parabolic Trough Collector (PTC)". W Parabolic Trough Solar Collectors, 15–36. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08701-1_2.

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. "PTC Enhancement Using Passive Techniques". W Parabolic Trough Solar Collectors, 37–120. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08701-1_3.

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. "Background". W Parabolic Trough Solar Collectors, 1–13. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08701-1_1.

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. "Discussion on Heat Transfer Enhancement Methods". W Parabolic Trough Solar Collectors, 171–82. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08701-1_5.

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. "Conclusions and Recommendations". W Parabolic Trough Solar Collectors, 183–86. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08701-1_6.

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Mohammed, Hussein A., Hari B. Vuthaluru i Shaomin Liu. "PTC Enhancement Using Nanofluids". W Parabolic Trough Solar Collectors, 121–69. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08701-1_4.

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Jie, Ji, Han Chongwei, He Wei i Pei Gang. "Dynamic Performance of Parabolic Trough Solar Collector". W Proceedings of ISES World Congress 2007 (Vol. I – Vol. V), 750–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75997-3_141.

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Goel, Anubhav, Om Prakash Verma i Gaurav Manik. "Analytical Modeling of Parabolic Trough Solar Collector". W Soft Computing: Theories and Applications, 367–78. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0707-4_34.

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Malan, Anish, i K. Ravi Kumar. "Optical Modeling of Parabolic Trough Solar Collector". W Proceedings of the 7th International Conference on Advances in Energy Research, 81–89. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5955-6_8.

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Gunay, Ceyda, Anil Erdogan i C. Ozgur Colpan. "Exergetic Optimization of a Parabolic Trough Solar Collector". W The Role of Exergy in Energy and the Environment, 677–89. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89845-2_48.

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Streszczenia konferencji na temat "Solar Parabolic Trough Collector"

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Lu¨pfert, Eckhard, Klaus Pottler, Steffen Ulmer, Klaus-J. Riffelmann, Andreas Neumann i Bjo¨rn Schiricke. "Parabolic Trough Analysis and Enhancement Techniques". W ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76023.

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Analysis of geometry and optical properties of solar parabolic trough collectors uses a number of specific techniques that have demonstrated to be useful tools in prototype evaluation. These are based on photogrammetry, flux mapping, ray-tracing, and advanced thermal testing. They can be used to assure the collector quality during construction and for acceptance tests of the solar field. The methods have been applied on EuroTrough collectors, cross-checked and compared. This paper summarizes results in collector shape measurement, flux-measurement, ray-tracing, and thermal performance analysis for parabolic troughs. It is shown that the measurement methods and the parameter analysis give consistent results. The interpretation of the results and their annual evaluation give hints on identified relevant improvement potentials for the following generation of solar power plant collectors.
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Hurt, Rick, Wooson Yim, Robert Boehm, Mary Jane Hale i Randy Gee. "Advanced Parabolic Trough Field Testing: Real-Time Data Collection, Archiving, and Analysis for the Solargenix Advanced Parabolic Trough". W ASME 2006 International Solar Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/isec2006-99078.

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Solargenix Energy is currently constructing a 64-MWe parabolic trough solar plant in Eldorado Valley, Nevada, just south of Las Vegas. As part of the preparation for construction and operation of the new utility-scale solar plant, Solargenix has collaborated with UNLV and NREL to build a collector test row. The test row is serving as a platform for field testing advanced parabolic trough components before their large-scale deployment. The test row consists of two Solargenix Solar Collector Assemblies (SCAs); each SCA has 12 collector modules (space frames and mirrors). This facility has been used to field test new Solargenix designs for first and second generation collector space frames, advanced reflectors, advanced local controllers (AdLoCs), a hydraulic-based drive system, receiver support arms, low-cost injection-molded bearings, ball joints and collector support pylons. The test-row facility also has equipment for monitoring the following weather data: direct normal irradiance, dry bulb temperature, relative humidity, wind speed and precipitation. Data logging equipment is used to record and track weather data as well as SCA parameters. Site instrumentation is solar-powered (photovoltaics) and uses cellular technology to transmit data to a web-based data collection system. This paper describes construction of this facility, the installation of the data-collection system and some data collected to date.
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Bharti, Alka, i Bireswar Paul. "Design of solar parabolic trough collector". W 2017 International Conference on Advances in Mechanical, Industrial, Automation and Management Systems (AMIAMS). IEEE, 2017. http://dx.doi.org/10.1109/amiams.2017.8069229.

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Farr, Adrian, i Randy Gee. "The SkyTrough™ Parabolic Trough Solar Collector". W ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90090.

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The SkyTrough™ is a new high-efficiency parabolic trough solar collector that has been designed with features to reduce capital cost, shorten installation time, and reduce O&M cost. This collector builds on the excellent success of prior generation utility-scale parabolic trough designs, but incorporates several engineering and material innovations, listed below. 1. Lightweight, low cost, unbreakable non-glass reflectors using ReflecTech® Mirror Film with reflectance equal to silvered glass mirrors — and easy to install and replace, 2. Large aperture area parabolic trough module with more than double the aperture area of the Nevada Solar One (NSO) module, 3. Longer linear receiver (SCHOTT PTR™80) utilized to match the larger aperture width SkyTrough, 4. Aluminum space frame structure that is considerably lighter per unit of aperture area compared to NSO, 5. Total component “part count” that is considerably reduced per unit of aperture area, yielding a shorter assembly time per unit of aperture than the NSO modules, 6. Hydraulic-based rotary actuation system that provides built-in “stow” locking capability and higher torque capability compared to NSO, 7. SkyTrakker™ control system reduces inrush currents and reduces parasitic power consumption associated with collector sun tracking.
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Gee, Randy, Gilbert Cohen i Roland Winston. "A Nonimaging Receiver for Parabolic Trough Concentrating Collectors". W ASME Solar 2002: International Solar Energy Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/sed2002-1062.

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The design of a nonimaging secondary reflector as part of a parabolic trough receiver has been developed and evaluated. A detailed optical model was used for evaluation, which offered insight into the optical performance of the secondary and showed that the design offers about a 1% net increase in optical efficiency. In addition, the secondary was estimated to reduce heat loss from a high-performance evacuated receiver by about 4%. Overall, the net performance advantage of the secondary reflector is calculated to be 1.4%, that is, the entire trough collector field would have a 1.4% greater annual thermal energy output. This performance increase is small, but the non-imaging secondary also achieves other indirect benefits such as better flux uniformity around the absorber tube, and increased tolerance of parabolic trough collectors to optical errors.
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Danylyuk, Andriy, Marcus Zettl i Mark Lynass. "Simulation of point light concentration with parabolic trough collector". W SPIE Solar Energy + Technology, redaktorzy Lori E. Greene i Raed A. Sherif. SPIE, 2010. http://dx.doi.org/10.1117/12.861268.

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Krüger, Dirk, Sebastian Penkert, Jürgen Schnell, Nicole Janotte, Patrick Forman, Peter Mark, Tobias Stanecker i in. "Development of a concrete parabolic trough collector". W SOLARPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117626.

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Zaversky, F., S. Bergmann i W. Sanz. "Detailed Modeling of Parabolic Trough Collectors for the Part Load Simulation of Solar Thermal Power Plants". W ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68032.

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Solar thermal power plants are a promising way of providing clean renewable electric energy. These plants concentrate the incoming solar direct irradiation in order to heat up a heat transfer fluid. The collected thermal energy can be stored or instantly delivered to a power block where part of the thermal energy is converted to electrical energy in a turbine with the connected generator. The parabolic trough collector plant is the today’s most developed solar thermal power plant type. There the solar irradiation is focused on receiver tubes which are concentrically placed to the focal lines of the parabolic trough collectors. A high temperature oil is pumped through these receiver tubes, which collects the heat and delivers it later on to the steam generator of the connected Rankine steam cycle. In order to improve the efficiency of these solar thermal power plants, the direct steam generation (DSG) within the parabolic trough collector receiver tubes is being investigated. Both types of parabolic trough collectors, the conventional type using oil as heat transfer fluid and the direct steam generation type, are subject of this paper. A detailed steady-state parabolic trough collector model was developed for each type, using the thermodynamic simulation software IPSEpro. The developed models consider the cosine-loss attenuation factor, the shading attenuation factor, optical losses, as well as thermal losses. Appropriate heat transfer and pressure loss correlations were implemented for both collector types. For the direct steam generation model, distinct collectors for the preheating section, the evaporation section and the superheating section were used. Furthermore, the suitable length of discretization for the modeling of one collector loop within a center-fed solar field was investigated. Calculated solar field performance data for the oil concept were compared to validated data available in open literature. Finally, a power plant simulation with each collector type, over the course of one reference day, showed the great potential of the direct steam generation, as well as the suitability of IPSEpro for running solar thermal power plant yield simulations.
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Qu, Ming, David H. Archer i Hongxi Yin. "A Linear Parabolic Trough Solar Collector Performance Model". W ASME 2007 Energy Sustainability Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/es2007-36052.

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A performance model has been programmed for a solar thermal collector based on a linear parabolic trough reflector focused on a coated absorber tube enclosed in an evacuated transparent tube: a Parabolic Trough Solar Collector (PTSC). This steady state, single dimensional model is based on fundamental material and energy balances together with heat transfer correlations programmed in the Engineering Equation Solver (EES). The model considers the effects of solar intensity, incident angle, collector dimensions, material properties, fluid properties, ambient conditions, and operating conditions on the performance of the PTSC. The model has been used to size system devices, to choose proper operating conditions, and to detect possible operating problems for the solar cooling and heating system for the Intelligent Workplace (IW) at Carnegie Mellon University (CMU) in Pittsburgh. The IW installed 52 - square meter PTSCs coupled with a 16 kW absorption chiller for space cooling and heating in August of 2006. The tests on PTSC performance are now being carried out. After the model is validated by experimental data of the tests, it will be further used to improve PTSC design and to optimize system operation and control for the IW.
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Hernandez, Kristian, Ryan King, Joseph Lauth, Joshua Sharp, Eric Wittman i Christopher Depcik. "Shape Comparison for Solar Thermal Parabolic Collector". W ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88475.

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The KU EcoHawks are a mechanical engineering, undergraduate, senior design group at the University of Kansas that focuses on projects emphasizing a sustainable approach to automobiles and energy infrastructure. Much of the EcoHawks construction work is completed at a barn on campus that does not currently contain a heating or air conditioning system. Due to the temperature extremes reached in Kansas during the summer and winter months, thermal comfort is problematic for students working within the barn. This past academic year, one design group implemented a heating system for the barn utilizing a solar thermal parabolic collector. During the design phase, research of the literature found relatively little information in regards to the optimized depth of the parabolic curve. As a result, a prototype solar thermal parabolic trough was built in order to test three different parabolic shapes with varied depths. Static testing of a 50-50 mix of ethylene glycol and water found that the parabolic shape with the smallest focal length had the greatest solar collection efficiency. From this assessment, a final parabolic trough design was created. The assumptions, testing procedure, and results of static testing for the optimum parabolic shape of a solar trough collector will be addressed herein.
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Raporty organizacyjne na temat "Solar Parabolic Trough Collector"

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Dudley, V., L. Evans i C. Matthews. Test results, Industrial Solar Technology parabolic trough solar collector. Office of Scientific and Technical Information (OSTI), listopad 1995. http://dx.doi.org/10.2172/211613.

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Hosoya, N., J. A. Peterka, R. C. Gee i D. Kearney. Wind Tunnel Tests of Parabolic Trough Solar Collectors: March 2001--August 2003. Office of Scientific and Technical Information (OSTI), maj 2008. http://dx.doi.org/10.2172/929597.

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Stettenheim, Joel. Second Generation Novel High Temperature Commercial Receiver & Low Cost High Performance Mirror Collector for Parabolic Solar Trough. Office of Scientific and Technical Information (OSTI), luty 2016. http://dx.doi.org/10.2172/1332248.

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Author, Not Given. Solar parabolic trough. Office of Scientific and Technical Information (OSTI), styczeń 2009. http://dx.doi.org/10.2172/1216669.

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Anthony Messina, Anthony Messina. The Parabolic Solar Trough. Experiment, wrzesień 2012. http://dx.doi.org/10.18258/0050.

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Gleckman, Philip, i Nicolas R. Peralta. Development of a Green Parabolic Trough Collector. Office of Scientific and Technical Information (OSTI), październik 2018. http://dx.doi.org/10.2172/1489170.

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Kinoshita, G. Shenandoah parabolic dish solar collector. Office of Scientific and Technical Information (OSTI), styczeń 1985. http://dx.doi.org/10.2172/5914387.

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Kurup, Parthiv, i Craig S. Turchi. Parabolic Trough Collector Cost Update for the System Advisor Model (SAM). Office of Scientific and Technical Information (OSTI), listopad 2015. http://dx.doi.org/10.2172/1227713.

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Price, H. W. Guidelines for reporting parabolic trough solar electric system performance. Office of Scientific and Technical Information (OSTI), czerwiec 1997. http://dx.doi.org/10.2172/549668.

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Author, Not Given. Assessment of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts. Office of Scientific and Technical Information (OSTI), październik 2003. http://dx.doi.org/10.2172/15005520.

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