Relevant bibliographies by topics / Compound parabolic trough concentrator

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Academic literature on the topic 'Compound parabolic trough concentrator'

Author: Grafiati
Published: 3 June 2025
Last updated: 22 June 2025

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Journal articles on the topic "Compound parabolic trough concentrator"

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Abdulrahim, A.T, I.S Diso, and A. M. EL-Jummah. "SOLAR CONCENTRATORS' DEVELOPMENTS IN NIGERIA: A REVIEW." Continental J. Engineering Sciences 5, no. 1 (2010): 38–45. https://doi.org/10.5281/zenodo.833739.

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The use of concentrators in the forms of solar energy collectors in order to concentrate sunrays for better usage is on the increase worldwide. To this effect, different types of solar concentrators have being developed over the years for various applications. The present study reviewed the various solar concentrators developed in Nigeria such as the parabolic fresnel concentrator, paraboloid solar cooker, parabolic trough collector, conical concentrator, compound parabolic solar concentrator and solar tracking bi-focal collectors. It identified their level of performance and limitations, and proposed suggestions for further improvement. The needs for support by adequate funding through research grants and patronage by governments, corporate bodies and individuals was emphasized.
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Abdulrahim, A.T, I.S Diso, and A. M. EL-Jummah. "SOLAR CONCENTRATORS' DEVELOPMENTS IN NIGERIA: A REVIEW." Continental J. Engineering Sciences 6, no. 3 (2011): 30–37. https://doi.org/10.5281/zenodo.833983.

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The use of concentrators in the forms of solar energy collectors in order to concentrate sunrays for better usage is on the increase world wide. To this effect, different types of solar concentrators have being developed over the years for various applications. The present study reviewed the various solar concentrators developed in Nigeria such as the parabolic fresnel concentrator, paraboloid solar cooker, parabolic trough collector, conical concentrator, compound parabolic solar concentrator and solar tracking bi-focal collectors. It identified their level of performance and limitations, and proposed suggestions for further improvement. The needs for support by adequate funding through research grants and patronage by governments, corporate bodies and individuals was emphasized.
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Cao, Fei, Jiarui Pang, Xianzhe Gu, Miaomiao Wang, and Yanqin Shangguan. "Performance Simulation of Solar Trough Concentrators: Optical and Thermal Comparisons." Energies 16, no. 4 (2023): 1673. http://dx.doi.org/10.3390/en16041673.

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The solar trough concentrator is used to increase the solar radiation intensity on absorbers for water heating, desalination, or power generation purposes. In this study, optical performances of four solar trough concentrators, viz. the parabolic trough concentrator (PTC), the compound parabolic concentrator (CPC), the surface uniform concentrator (SUC), and the trapezoid trough concentrator (TTC), are simulated using the Monte Carlo Ray Tracing method. Mathematical models for the solar trough concentrators are first established. The solar radiation distributions on their receivers are then simulated. The solar water heating performances using the solar trough concentrators are finally compared. The results show that, as a high-concentration ratio concentrator, the PTC can achieve the highest heat flux, but suffers from the worst uniformity on the absorber, which is only 0.32%. The CPC can generate the highest heat flux among the rest three low-concentration ratio solar trough concentrators. Compared with the PTC and the CPC, the TTC has better uniformity, but its light-receiving ratio is only 70%. The SUC is beneficial for its highest uniformity of 87.38%. Thermal analysis results show that the water temperatures inside the solar trough concentrators are directly proportional to their wall temperature, with the highest temperature rise in the PTC and the smallest temperature rise in the TTC. The solar trough concentrators’ thermal deformations are positively correlated to their wall temperatures. The radial deformation of the SUC is much larger than those of other solar trough concentrators. The smallest equivalent stress is found in the SUC, which is beneficial to the long-term operation of the solar water heating system.
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Pardellas, Alberto, Pedro Fortuny Ayuso, Luis Bayón, and Arsenio Barbón. "A New Two-Foci V-Trough Concentrator for Small-Scale Linear Fresnel Reflectors." Energies 16, no. 4 (2023): 1597. http://dx.doi.org/10.3390/en16041597.

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We present the design of an original secondary cavity for use in Small-Scale Fresnel Reflectors in photovoltaic applications. The cavity is similar to the classical V-trough, but the primary reflector system is configured so that there are two focal points on the aperture. The rays coming from each side of the primary system reach the opposite side of the cavity, producing a non-symmetrical distribution of the irradiance. This modifies the acceptance half-angle and allows us to break the maximum limit for the concentration ratio of ideal symmetric concentrators. Our study is analytic, and we provide formulas for any number of reflections. Numerical simulations with a ray-tracing program based on MATLAB are included. We provide a comparison of optical concentration ratio, height and cost parameter between our system and two classical designs with a single focal point: the V-trough and the Compound Parabolic concentrators. This way, we verify that our design yields better concentration ratios while keeping the ray acceptance rate at one. Our solution proves to be better than both the classical one-focus V-trough and the Compound Parabolic concentrator. Specifically, the proposed solution is significantly better than the classical one-focus V-trough in optical concentration ratio, with an increase between 15.02 and 35.95%. As regards the compound parabolic concentrator, the optical concentration ratio is always slightly better (around 4%). The height of the cavity, however, is notably less in this design (around 54.33%).
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Sripadmanabhan Indira, Sridhar, Chockalingam Aravind Vaithilingam, Ramsundar Sivasubramanian, Kok-Keong Chong, R. Saidur, and Kulasekharan Narasingamurthi. "Optical performance of a hybrid compound parabolic concentrator and parabolic trough concentrator system for dual concentration." Sustainable Energy Technologies and Assessments 47 (October 2021): 101538. http://dx.doi.org/10.1016/j.seta.2021.101538.

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Peng, Yanan, Xuedong Liu, Xiaorong Hang, Jing Hou, and Zehui Chang. "Investigation of photothermal performance of compound parabolic concentrator system for soil heating in facility agriculture." Thermal Science, no. 00 (2022): 214. http://dx.doi.org/10.2298/tsci221003214p.

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Aiming at the large carbon emissions of facility agricultural heating in severe cold regions in winter, a Compound Parabolic Concentrator based soil heating system was presented. The system integrated with novel trough Compound Parabolic Concentrator and was used for soil heating in facility agriculture. Following the structure of the Compound Parabolic Concentrator, TracePro software was selected to trace the light in the Compound Parabolic Concentrator. And the variation trend of the light escape rate of the Compound Parabolic Concentrator with the different incident angles was analyzed. Based on the calculation results, the performance of the solar collector system was investigated, and the impact of circulating air velocity on the photothermal performance of the solar collector system was explored. Research results indicate that when the circulating air velocity is 1.4 m/s and the average ambient temperature is about 28.9 ?, the temperature of the system outlet is up to 90.9?C. And the average instantaneous heat collection, maximum photothermal conversion efficiency, and unit area heat collection of the system are 740.6 W, 27.83 % and 0.8 MJm-2, respectively. This research can effectively promote the efficient integration of the solar collector system in facility agriculture.
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Bandala, Erick R., and Claudio Estrada. "Comparison of Solar Collection Geometries for Application to Photocatalytic Degradation of Organic Contaminants." Journal of Solar Energy Engineering 129, no. 1 (2005): 22–26. http://dx.doi.org/10.1115/1.2390986.

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A comparative study between four different solar collectors was carried out using oxalic acid and the pesticide carbaryl as model contaminants. The comparison was performed by means of a figure-of-merit developed for solar driven Advanced Oxidation Technology systems by the International Union of Pure and Applied Chemistry (IUPAC) for standardization purposes. It was found that there is a relationship between the photocatalyst concentration and the overall solar collector performance. Compound parabolic concentrator was the geometry with the highest turnover rate in the photocatalytic process of oxalic acid, followed by the V trough collector, the parabolic concentrator, and, finally, the tubular collector. When a comparative analysis was carried out using the figure of merit (collector area per order, ACO), the parabolic trough concentrator (PTC) showed the highest efficiency (lower ACO values) at low photocatalyst loads. The V trough collector and the compound parabolic collector showed similar ACO values, which decreased as the photocatalyst concentration increased. The tubular collector was the worst in all catalyst concentration ranges, with the higher collection surface by the order of oxalic acid. Photocatalytic degradation of the carbamic pesticide was tested using the same experimental arrangement used for oxalic acid. In this case, the use of the figure-of-merit allowed us to observe the same trend as that displayed for oxalic acid, but with slightly higher ACO values. Results of this work demonstrate that a comparison between different reactor geometries for photocatalytic processes is viable using this figure-of-merit approach and that the generated results can be useful in the standardization of a methodology for solar driven processes comparison and provide important data for the scaling up of the process.
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Liu, Yun, and Hong Zhang. "Selection of Working Fluids for Medium Temperature Heat Pipes Used in Parabolic Trough Solar Receivers." Advanced Materials Research 860-863 (December 2013): 62–68. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.62.

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According to the methods of focusing,the solar thermal generation can be classified to tower system,parabolic trough system and dish-stirling system. The parabolic solar thermal generation system is an important type of solar thermal utilization. Compared to tower and dish-stirling system,the parabolic trough system has many advantages such as the small concentration ratio,the simple process,the low material requirement and the simple tracking device because of many concentrator on-axis tracking. The parabolic trough system is the lowest cost, least close to commercialization,larger potential system optimization,and the most suitable to large operation in this three thermal generation systems [1,. The parabolic trough system is composed of concentrator and receiver,and the receiver is the key component that uses solar energy to heat working fluids in receiver. Therefore,the key problem is how to make the solar energy transfer to subsequent generation system efficiently and stably.
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Lei, Peng, Jun Yuan Lai, Jiong Ma, and Peng Jin. "Simulation and On-Site Performance of a Novel 3D Concentrator for Photovoltaic Application." Applied Mechanics and Materials 457-458 (October 2013): 1467–73. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.1467.

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We presented a family of new 3D concentrators. Simulations showed they could significantly increase the illumination on objective plane compared with 2D trough concentrators. A 3D concentrator prototype with a nominal 35° half acceptance angle was made. Its performance was tested under an indoor solar simulator and by on-site experiment. Under solar simulator, a low cost poly-silicon solar cell coupled with a 3D concentrator achieved a 2.25 times of maximum output power compared with a similar bare solar cell. In the on-site experiment, poly-silicon solar cell with a 3D compound parabolic based reflective concentrator gained an average of 1.4 times maximum output power when the incidence sunlight within the critical angle.
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Paul, Damasen Ikwaba. "Theoretical and Experimental Optical Evaluation and Comparison of Symmetric 2D CPC and V-Trough Collector for Photovoltaic Applications." International Journal of Photoenergy 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/693463.

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This paper presents theoretical and experimental optical evaluation and comparison of symmetric Compound Parabolic Concentrator (CPC) and V-trough collector. For direct optical properties comparison, both concentrators were deliberately designed to have the same geometrical concentration ratio (1.96), aperture area, absorber area, and maximum concentrator length. The theoretical optical evaluation of the CPC and V-trough collector was carried out using a ray-trace technique while the experimental optical efficiency and solar energy flux distributions were analysed using an isolated cell PV module method. Results by simulation analysis showed that for the CPC, the highest optical efficiency was 95% achieved in the interval range of 0° to ±20° whereas the highest outdoor experimental optical efficiency was 94% in the interval range of 0° to ±20°. For the V-tough collector, the highest optical efficiency for simulation and outdoor experiments was about 96% and 93%, respectively, both in the interval range of 0° to ±5°. Simulation results also showed that the CPC and V-trough exhibit higher variation in non-illumination intensity distributions over the PV module surface for larger incidence angles than lower incidence angles. On the other hand, the maximum power output for the cells with concentrators varied depending on the location of the cell in the PV module.
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Dissertations / Theses on the topic "Compound parabolic trough concentrator"

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Skouras, George N. "Design and Analysis of a Parabolic Trough Solar Concentrator." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1915.

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A prototype solar desalination system (SODESAL) with a parabolic-trough solar concentrator (PTSC) and evacuated tube was designed and analyzed to determine the solar thermal capabilities for small-scale distillation and energy generation. A proof-of-concept study verified that distillation is possible with the system as designed, however a rupture occurred in the copper heat-pipe heat exchanger due to overheating. The internal temperatures of an aluminum heat transfer fin were measured inside an evacuated tube typically used in solar water heater systems to understand the lateral heat distribution and identify possible causes of the rupture. Solar radiation was measured for both the summer and winter solstices to understand the relationship between incident solar radiation and the potential freshwater yield of the system. The lateral heat distribution of the AHTF is dependent upon the PTSC’s solar incident angle. A consistent lateral heat distribution occurred across the AHTF approximately 40 mins after solar noon. The temperature difference between each end of the AHTF can exceed over 225 °C leading up to and following solar noon when the PTSC was set at a static slope. The SODESAL system’s future applications, system improvements and additional research are also discussed along with the capability of small-scale CSP systems.
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Vance, William M. "A Computational Study of a Photovoltaic Compound Parabolic Concentrator." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1429876153.

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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.<br>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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Khonkar, Hussam. "A novel design of a compound parabolic concentrator with dual-cavity." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363842.

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Meiser, Siw [Verfasser]. "Analysis of parabolic trough concentrator mirror shape accuracy in laboratory and collector / Siw Meiser." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1052217427/34.

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Naman, Garry Zamani. "Design and development of symmetric reflective compound parabolic concentrator (SRCPC) for power generation." Thesis, Heriot-Watt University, 2016. http://hdl.handle.net/10399/3286.

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This thesis presents a detailed design, simulation, optical performance, construction and experimental validation carried out on a novel non-imaging static symmetric reflective compound parabolic concentrator (SRCPC). By considering the seasonal variation of the sun’s position, a concentrating Photovoltaic (CPV) system with precise acceptance angle and low concentrating ratio will be an ideal alternative to conventional flat plate photovoltaic (PV) modules in harvesting the power from the sun. The SRCPC is a suitable choice well designed to achieve optimum precise acceptance angles and concentration ratio for this purpose. The optical performance theory study shows that a truncated symmetric reflective CPC with acceptance half-angles of 0° and 10° (termed as SRCPC-10) is the optimum design when compared with the symmetric reflective CPC designs with acceptance half-angles of 0° and 15° and 0° and 20° in Penryn and higher latitudes. An increase in the range of acceptance angles decreases the concentration ratio but an increase in the range of acceptance angles is achieved by truncating the concentrator profile which will reduce its cost as well. Ray tracing simulations indicates that the SRCPC-10 exhibited the maximum optical efficiency and steady slope compared with others. The simulated maximum optical efficiency of the SRCPC was found to be 94%. In addition, the SRCPC-10 was found to have a more uniform intensity distribution at the receiver and a total daily-monthly energy collection compared to the other designs. Thermal modelling of the CPV system with the SRCPC-10 concentrator shows that the solar cell operating temperature can reach up to 70°C for irradiance of 1000W/m2 at an ambient temperature of 25° at a wind velocity of 2.5m/s. The integration of the thermal management system is able to control and maintain the temperature to 29°C. The modelled thermal and electrical efficiencies were 47% and 15% respectively with a heat transfer coefficient of 54.29W/m2K thereby bringing the system efficiency to 62%. The maximum power of the SRCPC-10 when characterised in an indoor controlled environment using solar simulator was 5.96W at 1000W/m2 at a cooling flow rate of 0.0079L/s with average conversion efficiency of 8.97%. The maximum power at 1200W/m2 and 0.031L/s was 7.14W with conversion efficiency of 10.57%. The maximum increase in efficiency from non-cooling to cooling is 2.54%. The efficiency increased because of cooling is relatively 40%. The outdoor characterisation (validation) of the SRCPC-10 shows that the maximum power was 7.4W at 1206W/m2 on a sunny day. The maximum electrical conversion efficiency of the SRCPC-10 in outdoor conditions was found to be 10.96%. These results revealed that this designed SRCPC-10 is capable of collecting both direct and diffuse radiation to generate power. Therefore, the SRCPC-10 could be used to provide a solution to the increasing demand on electricity to the energy mix, leaving a clean environment for future developments.
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Tian, Meng. "A study on the use of three-dimensional dielectric crossed compound parabolic concentrator for daylighting control application." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/50347/.

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As a low concentration concentrator with a larger acceptance angle and without a tracking requirement, compound parabolic concentrator is regarded as an attractive solution to improve the system performance and reduce the cost of photovoltaic (PV) system, solar thermal system, daylighting and lighting systems, etc. As a typical type of three-dimensional compound parabolic concentrator (CPC), dielectric crossed compound parabolic concentrator (dCCPC) has drawn a significant research attention in these years to explore its angular characteristics in solar collection for concentrating photovoltaics and daylighting control in buildings. This thesis provides a comprehensive study on dCCPC in aspect of daylighting control. The work starts from a general review that provides a detailed introduction of the background of CPC applications in solar energy. Then the fundamental property of dCCPC when it is utilized as skylights for daylighting control is investigated, and the performance of dCCPC is also compared to other types of CPC. With the consideration of actual application, the dCCPC panel should be designed as small as possible to reduce its weight and maintain the optical characters simultaneously. Several criteria relating to the dimension of dCCPC panel are proposed and investigated about their effects on the optical performance of dCCPC, followed by the experiments that are taken for validation. As ray-tracing simulation is the most common way to determine the optical performance of dCCPC which provides accurate result but requires long time to run, the multiple nonlinear regression model and artificial neural network model are put forward in the beginning of the second half of this thesis. The coefficients of determination of these models could reach 0.99 which imply the high accuracy of them. The optical performance of dCCPC can be calculated rapidly by knowing the sun position and sky condition. Afterwards, because the performance of dCCPC can be calculated easily for any time and any location with the mathematical model, a case study was taken to investigate the dCCPC effects on building energy consumption, indoor visual environment and economic benefits. This research proves the potential of dCCPC in terms of daylighting control. As a stationary skylight, the transmittance of it is adjusted automatically depending the sky condition and sun position. It also provides outstanding performance in indoor illuminance distribution. The dCCPC is suggested to be used in the locations with long hot seasons for the purpose of energy saving, and it is suggested for all locations with a view to glare control. For further work, more related criteria are encouraged to be added into the prediction models. The method of manufacturing dCCPC is suggested to be improved. Finally, the asymmetric dCCPC is expected to have high potential in daylighting control as vertical building facade, which is worth to be investigated.
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Šumić, Mersiha. "Thermal Performance of a Solarus CPC-Thermal Collector." Thesis, Högskolan Dalarna, Energi och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:du-14526.

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The  aim  of  this  master  thesis  is  an  investigation  of  the  thermal  performance  of  a  thermal compound parabolic concentrating (CPC) collector from Solarus. The collector consists of two troughs with absorbers which are coated with different types of paint with  unknown  properties.  The  lower  and  upper  trough  of  the  collector  have  been  tested individually. In  order  to  accomplish  the  performance  of  the  two  collectors,  a  thorough  literature  study  in  the  fields  of  CPC  technology,  various  test  methods,  test  standards  for  solar thermal  collectors  as  well  as  the  latest  articles  relating  on  the  subject  were  carried  out. In addition, the set‐up of the thermal test rig was part of the thesis as well. The thermal  performance  was  tested  according  to  the  steady  state  test  method  as  described in the European standard 12975‐2. Furthermore, the thermal performance of  a  conventional  flat  plate  collector  was  carried  out  for  verification  of  the  test  method. The  CPC‐Thermal  collector  from  Solarus  was  tested  in  2013  and  the  results  showed  four  times  higher  values  of  the  heat  loss  coefficient  UL (8.4  W/m²K)  than  what  has been reported for a commercial collector from Solarus. This value was assumed to be too large and it was assumed that the large value was a result of the test method used that time. Therefore, another aim was the comparison of the results achieved in this work with the results from the tests performed in 2013. The results of the thermal performance showed that the optical efficiency of the lower trough of the CPC‐T collector is 77±5% and the corresponding heat loss coefficient UL 4.84±0.20  W/m²K.  The  upper  trough  achieved  an  optical  efficiency  of  75±6  %  and  a  heat loss coefficient UL of 6.45±0.27 W/m²K. The results of the heat loss coefficients  are  valid  for  temperature  intervals  between  20°C  and  80°C.  The  different  absorber paintings have a significant impact on the results, the lower trough performs overall better.  The  results  achieved  in  this  thesis  show  lower  heat  loss  coefficients UL and higher optical efficiencies compared to the results from 2013.
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Abranches, Gonçalo Botelho de Sousa. "Determinação da qualidade geométrica de superfície refletoras com recurso à fotogrametria." Master's thesis, Universidade de Évora, 2018. http://hdl.handle.net/10174/23893.

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Neste trabalho é utilizada a Fotogrametria como ferramenta para avaliação geométrica de concentradores solares térmicos. Coletores do tipo cpc – coletores parabólicos compostos são submetidos a diversas experiências fotogramétricas e avaliados quanto à sua forma. Outros objetos com superfícies refletoras e não refletoras como concentradores solares ptc – parabolic through concentrator e fornos solares também são alvo de experiências fotogramétricas com o objetivo de estudar os efeitos de diferentes tipos de superfícies na fotogrametria. É também comparado o modelo 3D do concentrador ideal com aquele que foi obtido através da fotogrametria, para o que foi feito um estudo exaustivo, verificando as diferenças geométricas entre os dois modelos, bem como os efeitos dessas diferenças físicas na reflexão dos raios solares, ou seja, na energia captada pelo concentrador; Abstract: Geometrical assessment of reflective surfaces using photogrammetry This paper uses Photogrammetry as a tool for the geometric evaluation of solar concentrators. Collectors of the cpc type - compound parabolic collectors are submitted to several photogrammetric experiments and evaluated for their shape. Other objects with reflecting and non-reflecting surfaces such as ptc - parabolic through concentrators and solar ovens are also the subject of photogrammetric experiments to study the effects of different types of surfaces in photogrammetry. There is also a comparison between the 3D model of the ideal concentrator and that obtained by photogrammetry. An exhaustive study was done verifying the geometric differences between the two models as well as the effects of these physical differences in the reflection of the solar rays that represent the energy captured by the concentrator.
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Gailiūnas, Paulius. "Fotovoltinio modulio su koncentratoriumi projektavimas ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130617_184708-47299.

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Baigiamajame magistro darbe suprojektuotos ir pagamintos dviejų rūšių šviesos koncentratorinės sistemos: jungtinė parabolinė ir sistema su Frenelio lęšiu. Atlikta saulės elementų efektyvumo analizė, išnagrinėtos šviesą koncentruojančių sistemų rūšys bei aptarti jų optiniai parametrai. Frenelio lęšis ir koncentratorinių sistemų laikančiosios konstrukcijos pagamintos vakuuminio formavimo būdu, ieškant pigesnės gamybos technologijos. Baigiamajame darbe atlikti optinio pralaidumo ir lūžio rodiklio, matomos šviesos bangų ilgių ruože, tyrimai bei saulės elementų, esančių šviesos koncentratorinėse sistemose,voltamperinių ir voltvatinių charakteristikų tyrimai. Iš tyrimų rezultatų nustatyti šviesos koncentravimo laipsniai. Darbe diskutuojama apie pigių optinių sistemų galimus pritaikymus ir jų tobulinimo būdus. Išnagrinėjus teorinę ir praktinę dalis, pateiktos išvados ir pasiūlymai. Darbą sudaro 8 dalys: įvadas, saulės elementų efektyvumo ribos, saulės šviesos koncentratoriai ir jų panaudojimas fotoelektrinėse sistemose, eksperimentinių tyrimų metodika, prototipų gamyba, eksperimentiniai tyrimai, išvados, literatūros sąrašas. Darbo apimtis – 82 p. teksto be priedų, 95 pav., 13 lent., 22 bibliografiniai šaltiniai. Atskirai pridedami darbo priedai.<br>Concentrated PV systems (compound parabolic and Fresnel CPV) have been designed and investigated. The efficiency of solar cells and the types of light concentrated systems have been analyzed and their optical parameters have been discussed. Fresnel lens and the CPV system holding structure have been fabricated by means of vacuum forming machine in this way making the technology of production less expensive. Optical transmittance and refractive index of Fresnel lens were measured in the range of visible light wavelengths. Current-voltage and voltage-power characteristics of solar cells built inside the CPV systems were investigated, based on results the degree of light concentration by Fresnel lens and compound parabolic CPV has been determined. Some discussions regarding possible applications of concentrated PV systems containing the Fresnel lens as well as possible ways of CPV design improvements are given in current work. After analysed theoretical and practical parts, conclusions and suggestions are proposed. Thesis structure: introduction, theoretical and experimental parts, results of experiments, conclusions and references. Thesis consist of: 82 p. text without appendixes, 95 pictures, 13 tables, 22 bibliographical entries. Appendixes included.
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Books on the topic "Compound parabolic trough concentrator"

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Suresh, Deivarajan. Some studies related to a new hexagonal compound parabolic concentrator (HCPC) as a secondary in tandem with a solar tower. DLR, 1990.

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Book chapters on the topic "Compound parabolic trough concentrator"

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Deebhesh, D., B. Sreejith, and O. Arjun. "Solar Desalination Using Modified Parabolic Trough Concentrator." In Springer Transactions in Civil and Environmental Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1063-2_20.

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Tamta, Deepika, and R. P. Saini. "Design and Investigation of Parabolic Trough Solar Concentrator." In Springer Proceedings in Energy. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4576-9_6.

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Jinshe, Yuan, Wang Mingyue, and Yang Changmin. "Experimental Research on Photovoltaic Module for Asymmetrical Compound Parabolic Concentrator." In Proceedings of ISES World Congress 2007 (Vol. I – Vol. V). Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75997-3_318.

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Ortega, Anita, Subhash Chandra, and Sarah J. McCormack. "Design and Characterization of a Roof-Mounted Compound Parabolic Concentrator." In Innovative Renewable Energy. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-76221-6_98.

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Hussain, Ibrahim Alhassan, Syed Ihtsham Ul-Haq Gilani, Hussain H. Al-Kayiem, Mohamad Zaki Bin Abdullah, and Javed Akhter. "Integration of Compound Parabolic Concentrator with Solar Power Tower Receiver." In Clean Energy Opportunities in Tropical Countries. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9140-2_4.

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Chandan, Sumon Dey, V. Suresh, M. Iqbal, K. S. Reddy, and Bala Pesala. "Thermal and Electrical Performance Assessment of Elongated Compound Parabolic Concentrator." In Proceedings of the 7th International Conference on Advances in Energy Research. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5955-6_59.

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Baig, Muhammad Nadeem, Asad Khan Durrani, and Ammar Tariq. "CPC-Trough—COmpound Parabolic Collector for Cost Efficient Low Temperature Applications." In Proceedings of ISES World Congress 2007 (Vol. I – Vol. V). Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75997-3_111.

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Chandan and Bala Pesala. "Floating Absorber Integrated with Compound Parabolic Concentrator for Effective Solar Water Desalination." In Advances in Energy Research, Vol. 2. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2662-6_14.

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El Ydrissi, Massaab, Hicham Ghennioui, El Ghali Bennouna, and Farid Abdi. "Geometric and Optical Efficiency Study for Solar Parabolic Trough Concentrator Using the Deflectometry Technique." In Lecture Notes in Electrical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1405-6_74.

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Matsumoto, Yoshinori, Akimichi Nakazono, Taisuke Kitahara, and Yasuhiro Koike. "Novel optical transceiver with compound parabolic concentrator for graded index plastic optical fiber." In Transducers ’01 Eurosensors XV. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59497-7_47.

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Conference papers on the topic "Compound parabolic trough concentrator"

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Naaim, Soufyane, Badr Ouhammou, Brahim Daouchi, and Mohammed Aggour. "Integration of Parabolic Trough Concentrator with Organic Rankine Cycle for Enhanced Desalination Reverse Osmosis Management." In 2024 International Conference on Circuit, Systems and Communication (ICCSC). IEEE, 2024. http://dx.doi.org/10.1109/iccsc62074.2024.10616933.

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Sharma, Amit, and Namrata Sengar. "Experimental Study of Steam Generation through Solar Parabolic Trough Collector for Prospective Use in Small Industries." In 22nd ISME International Conference on Recent Advances in Mechanical Engineering for Sustainable Development. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-c5wuq2.

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The solar parabolic trough collector technology is one of the most reliable technologies in the field of solar thermal. This is due to the fact that temperatures as high as 300-400°C can be achieved using this technology. This technology is used for hot water production, process steam requirement, power generation and many more. In the present work a thermal study on a parabolic trough collector is performed to observe the range of steam temperatures to be useful for small scale industry applications. The paper presents the steam temperatures, temperature profiles for the solar collector components and the solar radiation variation over the day. On the basis of several experiments it was found that in the parabolic trough collector the maximum pressure of 221 bar and the maximum steam temperature of around 374°C is achieved. From the experimental data obtained, the variation in temperatures with solar radiation on clear and intermittent cloud cover is discussed. From the results it can be concluded that this system may be used successfully for production of hot water and steam for use in many different industries such as dairy, textile, paper, timber, bricks, chemicals, plastics etc. Hot water and steam from solar system can be used in small scale industries for rose water making, cooking, drying, sterilization, food processing etc. In this paper a design for rose water making process through parabolic trough collector has been proposed. Keywords: Solar concentrator, parabolic trough, cylindrical parabolic collector, steam, temperature profile, industry applications.
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Lwiwa, Casiana Blasius, and Ole jørgen Nydal. "A Ray Tracer for optimizing solar concentrating systems: The case of discretized Compound Parabolic Concentrator." In 63rd International Conference of Scandinavian Simulation Society, SIMS 2022, Trondheim, Norway, September 20-21, 2022. Linköping University Electronic Press, 2022. http://dx.doi.org/10.3384/ecp192003.

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Concentrating solar systems use reflective surfaces to concentrate sunlight onto a small area, where it is absorbed and converted to heat. Many classes of concentrating collectors such as Compound Parabolic Concentrators (CPCs), parabolic dish and parabolic trough are available, each with different concentrating ratio and maximum absorber temperature, depending on the type of applications. A simplified 3D Compound Parabolic Concentrator (CPC) with 2 rings and 4 sectors has been designed. The designed CPC is cost effective as it requires only 8 mirrors to cover the reflector surface. It does not require sun tracking, but have capability to accept incoming solar radiation over a relatively wide range of angles. For further capturing of the solar radiations, tilting of the CPC during a day can be made a few times. This study aims to model the discretized 3D CPC using the ray tracing, to optimize the CPC for achieving optimal interceptions on a 0.2 m diameter cylindrical absorber, placed inside the CPC. The ray tracing methodology is presented together with the results of the interceptions on the cylindrical absorber using the discretized CPC. Results show the effect of tilting the discretized CPC is not very strong as the interception values are slightly reduced and the curves a little bit not symmetric around the normal sun angles.
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Hammad, M., A. Al-Qtiemat, and A. Alshqirate. "Modeling and Analysis of the Performance of a Parabolic Trough Solar Concentrator System." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63411.

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The increasing fossil fuel costs have led the world to use the clean and naturally available energy from the sun to produce electric power. Parabolic trough technology is nowadays the most extended solar system for electricity production or steam generation for industrial processes. It is the most proven, lowest cost and large-scale solar power technology available today. It is basically composed of a concentrator collector field which converts solar irradiation into thermal energy that will be used as input for a Rankine power cycle. In such plants, a storage system can be implemented in order to increase plant production. This work aimed to conclude with a simulation model of a solar thermal power plant using a parabol solar concentrator. The Euro Trough (ET) Concentrator was used as case study. MATLAB software was used for the analysis and performance evaluation. Different working fluids were used in the simulation which were: Pressurized water, Boiling water and Oil (Therminol-VP1). It was found that using water (pressurized or boiling) in the receiver tube is better than the Therminol-VP1 oil. And the pressurized water has the highest value of efficiency compared to the boiling water and Therminol-VP1 oil. The oil using system presented the highest energy losses system, and the lowest efficiencies. The ET performance was tested at different places in Jordan, and the distribution of direct solar irradiance at different days around the year was calculate and exhibited for Ma’an city as a case study. A comparison between simulated results and that found in literature were carried out with observed good conformity.
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Alnajideen, Mohammad, Mazin Al-Shidhani, Marwan Naaman, Martin Eze, and Fouad Suliman. "A comparative study of 3D printed non-imaging solar V-trough and compound parabolic concentrators for low-cost, high-performance CPV applications." In 18TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-18) AND 13TH WORLD CONFERENCE ON THERMOPHOTOVOLTAIC GENERATION OF ELECTRICITY (TPV-13). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0146166.

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Sano, Taizo, Nobuaki Negishi, Koji Takeuchi, and Sadao Matsuzawa. "Degradation of VOCs With Pt-TiO2 Photocatalyst and Concentrated Sunlight." In ASME 2004 International Solar Energy Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/isec2004-65072.

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A Parabolic trough concentrator (PTC) and a photocatalytic reactor with Pt-deposited TiO2 Photocatalyst were designed and constructed for the degradation of volatile organic compounds (VOCs). The temperature of photocatalyst coated on the sunlight receiver was easily elevated to around 473 K by PTC, and 79% of toluene or 93% of acetaldehyde was removed continuously, when gaseous toluene (15ppm) or acetaldehyde (400ppm) was passed through the reactor. The combination of sunlight concentrator and Pt-TiO2 catalyst exhibited the enhancement of complete degradation of VOCs, the inhibition of deactivation, and the reactivation of photocatalyst. The contributions of photocatalytic and catalytic activities of Pt-TiO2 were analyzed by using UV lamp and electric heater. Acetaldehyde was thermocatalytically degraded by photodeposited Pt on TiO2 at 343–463 K without UV irradiation, however the UV irradiation was necessary for the complete oxidation of acetaldehyde into CO2.
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Rodríguez, Jainer S., Duván C. Villegas, Marley C. Vanegas, and Guillermo E. Valencia. "Experimental Study of a Parabolic Trough Collector for Low Enthalpy Processes in the City of Barranquilla." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71245.

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Solar thermal energy is an alternative to provide heat for low-enthalpy processes at commercial and residential sectors in communities with energy sources scarcity. The present work is focused in the experimental performance analysis of a parabolic trough collector (PTC) designed and manufactured to minimize construction costs by setting the best parabolic profile and rim angle to improve thermal efficiency through enhancing light reflection in its parabolic surface, compound by conventional flat mirrors. The design considers an uncovered copper alloy receiver aligned with the focus of the reflective surface supported on a light metal structure. Sunlight collection area was defined at 1.2 m2 to allow installation of serial or parallel modular arrangements at reduced spaces like a building rooftop, the concentration ratio for this PTC is close to 33. This device was designed to use water as heat transfer fluid (HTF) and to be operated under environmental conditions of the city of Barranquilla, Efficiency curves were obtained based on experimental tests conducted with multiple HTF flow rate and varying reflecting surface slope for one PTC, obtaining a peak efficiency of 48 % and a without a tracking system. This device can be manufactured with a cost close to 80 USD/m2.
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Alnajideen, Mohammad, Mazin Al-Shidhani, and Gao Min. "A Comparative Study of 3D Printed Non-Imaging Solar V-Trough and Compound Parabolic Concentrators for Low-Cost, High-Performance CPV Applications." In 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC). IEEE, 2022. http://dx.doi.org/10.1109/pvsc48317.2022.9938472.

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Ghazouani, Karima, Safa Skouri, Salwa Bouadila, and Aman Allah Guizani. "Thermal study of solar parabolic trough concentrator." In 2018 9th International Renewable Energy Congress (IREC). IEEE, 2018. http://dx.doi.org/10.1109/irec.2018.8362474.

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Sharma, Ashish, Rinku Garg, Rajat Yadav, Mohd Sadim, Ahmed Alkhayyat, and Sanjeev Kumar Shah. "Analysis of Solar Parabolic Trough Concentrator Thermal Performance." In 2023 Global Conference on Information Technologies and Communications (GCITC). IEEE, 2023. http://dx.doi.org/10.1109/gcitc60406.2023.10426556.

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Reports on the topic "Compound parabolic trough concentrator"

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Winston, R., and J. J. O'Gallagher. Participation in multilateral effort to develop high performance integrated CPC evacuated collectors. [Compound Parabolic Concentrator (CPC)]. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7296012.

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Brinkley, Jordyn, Bennett Widyolar, Lun Jiang, et al. The Internal Compound Parabolic Concentrator (ICPC) - a Novel Low Cost Solar Thermal Collection System for Desalination Processes. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1914376.

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