Journal articles: 'CPC Collector'

1

Tripanagnostopoulos, Y., M. Souliotis, and Th Nousia. "CPC type integrated collector storage systems." Solar Energy 72, no. 4 (April 2002): 327–50. http://dx.doi.org/10.1016/s0038-092x(02)00005-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Lee, Hoe-Gil, and Singiresu S. Rao. "Uncertain Analysis of a Stationary Solar Compound Parabolic Concentrator PV Collector System Using Fuzzy Set Theory." Journal of Renewable Energy 2018 (September 26, 2018): 1–12. http://dx.doi.org/10.1155/2018/2915731.

Full text

Abstract:

The uncertain analysis of fixed solar compound parabolic concentrator (CPC) collector system is investigated for use in combination with solar PV cells. Within solar CPC PV collector systems, any radiation within the collector acceptance angle enters through the aperture and finds its way to the absorber surface by multiple internal reflections. It is essential that the design of any solar collector aims to maximize PV performance since this will elicit a higher collection of solar radiation. In order to analyze uncertainty of the solar CPC collector system in the optimization problem formulation, three objectives are outlined. Seasonal demands are considered for maximizing two of these objectives, the annual average incident solar energy and the lowest month incident solar energy during winter; the lowest cost of the CPC collector system is approached as a third objective. This study investigates uncertain analysis of a solar CPC PV collector system using fuzzy set theory. The fuzzy analysis methodology is suitable for ambiguous problems to predict variations. Uncertain parameters are treated as random variables or uncertain inputs to predict performance. The fuzzy membership functions are used for modeling uncertain or imprecise design parameters of a solar PV collector system. Triangular membership functions are used to represent the uncertain parameters as fuzzy quantities. A fuzzy set analysis methodology is used for analyzing the three objective constrained optimization problems.

APA, Harvard, Vancouver, ISO, and other styles

3

Tamainot-Telto, Z., and R. E. Critoph. "Solar sorption refrigerator using a CPC collector." Renewable Energy 16, no. 1-4 (January 1999): 735–38. http://dx.doi.org/10.1016/s0960-1481(98)00266-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Zauner, Christoph, Florian Hengstberger, Wolfgang Hohenauer, Christoph Reichl, Andreas Simetzberger, and Gerald Gleiss. "Methods for Medium Temperature Collector Development Applied to a CPC Collector." Energy Procedia 30 (2012): 187–97. http://dx.doi.org/10.1016/j.egypro.2012.11.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Casano, Giovanni, Marco Fossa, and Stefano Piva. "Design and experimental characterization of a CPC solar collector." International Journal of Heat and Technology 35, Special Issue1 (September 20, 2017): S179—S185. http://dx.doi.org/10.18280/ijht.35sp0125.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Tripanagnostopoulos, Y., and M. Souliotis. "Integrated collector storage solar systems with asymmetric CPC reflectors." Renewable Energy 29, no. 2 (February 2004): 223–48. http://dx.doi.org/10.1016/s0960-1481(03)00195-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kim, Yong, GuiYoung Han, and Taebeom Seo. "An evaluation on thermal performance of CPC solar collector." International Communications in Heat and Mass Transfer 35, no. 4 (April 2008): 446–57. http://dx.doi.org/10.1016/j.icheatmasstransfer.2007.09.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

González, Manuel I., and Luis R. Rodríguez. "Solar powered adsorption refrigerator with CPC collection system: Collector design and experimental test." Energy Conversion and Management 48, no. 9 (September 2007): 2587–94. http://dx.doi.org/10.1016/j.enconman.2007.03.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Akhter, Gilani, Al-Kayiem, and Ali. "Optical Performance Analysis of Single Flow Through and Concentric Tube Receiver Coupled with a Modified CPC Collector Under Different Configurations." Energies 12, no. 21 (October 30, 2019): 4147. http://dx.doi.org/10.3390/en12214147.

Full text

Abstract:

Compound parabolic concentrating (CPC) collectors have great potential to provide sustainable solar thermal energy for many applications operating in the medium temperature range. This paper presents the design, development and performance evaluation of a modified CPC collector integrated with an evacuated tube receiver. The optical performance of the designed CPC paired with concentric tube receiver is compared with that of a CPC coupled with single flow through evacuated tube receiver for stationary installation in the East-West and North-South directions. Ray tracing simulations of different configurations demonstrate that CPC coupled with single flow through receivers suffer high gap losses, especially at smaller incidence angles which are considerably alleviated by a concentric tube receiver arrangement. East-West installation of CPC paired with concentric tube receiver exhibited superior optical performance than all other configurations. The yearly average optical efficiency of CPC with concentric tube receiver was 5% higher than that of a single flow through receiver within the acceptance angle. A 60% truncated CPC coupled with concentric tube receiver emerged as the most effective design, which was fabricated for experimental testing. The tests conducted under actual outdoor tropical environmental conditions demonstrated that the experimental optical efficiency reached to about 69% in the case of N-S installation and 66.5% in an E-W arrangement. The experimental results closely match the simulation outcomes, which indicate the proposed performance prediction technique as instrumental for selecting the most effective configuration of CPC collectors for medium temperature heat supply.

APA, Harvard, Vancouver, ISO, and other styles

10

Jiang, Yu, Yang, Li, Wang, Lund, and Zhang. "A Review of the Compound Parabolic Concentrator (CPC) with a Tubular Absorber." Energies 13, no. 3 (February 5, 2020): 695. http://dx.doi.org/10.3390/en13030695.

Full text

Abstract:

The compound parabolic concentrator (CPC) is a highly interesting solar collector technology for different low-concentration applications due to no tracking requirement. The CPC with a tubular absorber is the most common type of CPC. Here, a comprehensive state-of-the-art review of this CPC type is presented, including design features, structure, applications, etc. Key design guidelines, structural improvements, and recent developments are also presented.

APA, Harvard, Vancouver, ISO, and other styles

11

Nasseriyan, Pouriya, Hossein Afzali Gorouh, João Gomes, Diogo Cabral, Mazyar Salmanzadeh, Tiffany Lehmann, and Abolfazl Hayati. "Numerical and Experimental Study of an Asymmetric CPC-PVT Solar Collector." Energies 13, no. 7 (April 3, 2020): 1669. http://dx.doi.org/10.3390/en13071669.

Full text

Abstract:

Photovoltaic (PV) panels and thermal collectors are commonly known as mature technologies to capture solar energy. The efficiency of PV cells decreases as operating cell temperature increases. Photovoltaic Thermal Collectors (PVT) offer a way to mitigate this performance reduction by coupling solar cells with a thermal absorber that can actively remove the excess heat from the solar cells to the Heat Transfer Fluid (HTF). In order for PVT collectors to effectively counter the negative effects of increased operating cell temperature, it is fundamental to have an adequate heat transfer from the cells to the HTF. This paper analyzes the operating temperature of the cells in a low concentrating PVT solar collector, by means of both experimental and Computational Fluid Dynamics (CFD) simulation results on the Solarus asymmetric Compound Parabolic Concentrator (CPC) PowerCollector (PC). The PC solar collector features a Compound Parabolic Concentrator (CPC) reflector geometry called the Maximum Reflector Concentration (MaReCo) geometry. This collector is suited for applications such as Domestic Hot Water (DHW). An experimental setup was installed in the outdoor testing laboratory at Gävle University (Sweden) with the ability to measure ambient, cell and HTF temperature, flow rate and solar radiation. The experimental results were validated by means of an in-house developed CFD model. Based on the validated model, the effect of collector tilt angle, HTF, insulation (on the back side of the reflector), receiver material and front glass on the collector performance were considered. The impact of tilt angle is more pronounced on the thermal production than the electrical one. Furthermore, the HTF recirculation with an average temperature of 35.1 °C and 2.2 L/min flow rate showed that the electrical yield can increase by 25%. On the other hand, by using insulation, the thermal yield increases up to 3% when working at a temperature of 23 °C above ambient.

APA, Harvard, Vancouver, ISO, and other styles

12

Carvalho, M. J., M. Collares-Pereira, and J. M. Gordon. "Economic Optimization of Stationary Nonevacuated CPC Solar Collectors." Journal of Solar Energy Engineering 109, no. 1 (February 1, 1987): 40–45. http://dx.doi.org/10.1115/1.3268176.

Full text

Abstract:

Stationary, nonevacuated CPC solar collectors are a promising alternative to corresponding flat plate collectors in that they offer superior yearly energy delivery at comparable cost for low-temperature thermal applications. For realistic cost scenarios, we determine optimal concentrator configurations and concentration ratios, and calculate their sensitivity to variations in relative component costs, climate, orientation and collector operating temperature. For CPC’s that are to have the flexibility of either east-west or north-south orientation, optimized collectors are shown to have low concentrations of around 1.2, achieved by truncation from acceptance half angles of about 45 deg.

APA, Harvard, Vancouver, ISO, and other styles

13

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

14

Karwa, Nitin, Lun Jiang, Roland Winston, and Gary Rosengarten. "Receiver shape optimization for maximizing medium temperature CPC collector efficiency." Solar Energy 122 (December 2015): 529–46. http://dx.doi.org/10.1016/j.solener.2015.08.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Wang, Jun, Lei Yu, Chuan Jiang, Song Yang, and Tingting Liu. "Optical analysis of solar collector with new V-shaped CPC." Solar Energy 135 (October 2016): 780–85. http://dx.doi.org/10.1016/j.solener.2016.06.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

HOSHI, Akira, and Takeo S. SAITOH. "Study of Solar Rankine Cycle System using CPC Solar Collector." Proceedings of the Symposium on Environmental Engineering 2002.12 (2002): 505–8. http://dx.doi.org/10.1299/jsmeenv.2002.12.505.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Kato, Jun, and Takeo S. Saitoh. "Simulation of Solar Thermal Electric System with CPC Solar Collector." Proceedings of The Computational Mechanics Conference 2004.17 (2004): 651–52. http://dx.doi.org/10.1299/jsmecmd.2004.17.651.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Saitoh, Takeo S., Jun Kato, and Noboru Yamada. "Advanced 3-D CPC solar collector for thermal electric system." Heat Transfer—Asian Research 35, no. 5 (2006): 323–35. http://dx.doi.org/10.1002/htj.20121.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

BERNARDO, L. R., H. DAVIDSSON, and B. KARLSSON. "Performance Evaluation of a High Solar Fraction CPC-Collector System." Journal of Environment and Engineering 6, no. 3 (2011): 680–92. http://dx.doi.org/10.1299/jee.6.680.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

SAITOH, Takeo S., and Jun KATO. "Micro 3-D CPC Solar Collector for Thermal Electric System." Transactions of the Japan Society of Mechanical Engineers Series B 71, no. 710 (2005): 2531–36. http://dx.doi.org/10.1299/kikaib.71.2531.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Goodman, Joel H. "Architectonic Studies with Selected Reflector Concentrating Solar Collectors." Journal of Green Building 2, no. 2 (May 1, 2007): 78–108. http://dx.doi.org/10.3992/jgb.2.2.78.

Full text

Abstract:

Solar concentrating collectors with reflectors are a developing technology for thermal applications that can be useful to avoid fossil fuel greenhouse gas emissions, reduce demand for imported fuels and lessen biomass burning. The selected reflector concentrators for building integration studies are: fixed nonimaging compound parabolic concentrator (CPC) E-W line troughs, (building interior with evacuated tubes [ET] for the Temperate Zone, and exterior for the Tropics) with N-S involutes and adjustable end “wall” reflector options; and two-axis tracking small heliostats central receiver tower systems. When these reflector concentrating collector systems are integrated within building form, structure, and site planning, they are one of the main organizing design influences—an essential aspect of conceptual design. Schematic architectonic design studies are presented for mid temperature process heat applications beyond temperatures delivered with typical flat-plate thermal collectors (>≈80°C/176°F). Relations between: solar collector technologies, CPC optical characterization, daylighting, building structure, construction, site planning, and interior space usage are discussed for selected building types. These include CPC solar community and institutional kitchens for the Tropics, and house-size verification facilities with building interior ET and reflectors for the Temperate Zone.

APA, Harvard, Vancouver, ISO, and other styles

22

Malato, S., J. Blanco, C. Richter, D. Curcó, and J. Giménez. "Low-concentrating CPC collectors for photocatalytic water detoxification: comparison with a medium concentrating solar collector." Water Science and Technology 35, no. 4 (February 1, 1997): 157–64. http://dx.doi.org/10.2166/wst.1997.0109.

Full text

Abstract:

The photocatalytic oxidation of 2,4-Dichlorophenol (DCP), using TiO2 suspensions under solar radiation, has been studied at pilot-plant scale at the Plataforma Solar de Almería (PSA). Two different reactor designs were tested: a medium concentrating radiation system called a Parabolic-Trough-Collector Reactor, PTCR, equipped with two motors (azimuth and elevation) to adjust the position of the module perpendicular to the sun, and a low-concentrating radiation system, the Compound-Parabolic-Concentrator Reactor, CPCR, facing south and inclined 37 degrees. Substrates were dissolved in water to required mg L−1 levels in a reservoir tank. In both cases, 0.2 g L−1 of the suspended TiO2 catalyst was used in a 250 L solution of the contaminant, which was recirculated through the photoreactors using a centrifugal pump and an intermediate reservoir tank. The advantages and disadvantages of the two types of photoreactors in DCP oxidation are compared and discussed. The strong potential of photocatalytic peroxydisulphate-assisted degradation in high DCP concentrations was demonstrated in both systems, and chemical actinometry (the decomposition reaction of oxalic acid by radiated uranyl salts) in the CPC reactor is compared with the results obtained in the PTC.

APA, Harvard, Vancouver, ISO, and other styles

23

Rönnelid, M., B. Perers, and B. Karlsson. "Construction and testing of a large-area CPC-collector and comparison with a flat plate collector." Solar Energy 57, no. 3 (September 1996): 177–84. http://dx.doi.org/10.1016/s0038-092x(96)00062-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Carvalho, M. J., M. Collares-Pereira, J. Correia de Oliveira, J. Farinha Mendes, A. Haberle, and V. Wittwer. "Optical and thermal testing of a new 1.12X CPC solar collector." Solar Energy Materials and Solar Cells 37, no. 2 (May 1995): 175–90. http://dx.doi.org/10.1016/0927-0248(94)00205-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Proell, M., P. Osgyan, H. Karrer, and C. J. Brabec. "Experimental efficiency of a low concentrating CPC PVT flat plate collector." Solar Energy 147 (May 2017): 463–69. http://dx.doi.org/10.1016/j.solener.2017.03.055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Chakraverty, S., N. K. Bansal, and H. P. Garg. "Transient analysis of a CPC collector with time dependent input function." Solar Energy 38, no. 3 (1987): 179–85. http://dx.doi.org/10.1016/0038-092x(87)90016-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Chew, T. C., A. O. Tay, and N. E. Wijeysundera. "A Numerical Study of the Natural Convection in CPC Solar Collector Cavities with Tubular Absorbers." Journal of Solar Energy Engineering 111, no. 1 (February 1, 1989): 16–23. http://dx.doi.org/10.1115/1.3268281.

Full text

Abstract:

The laminar free convection in a compound parabolic concentrator (CPC) solar collector cavity is numerically simulated using the finite element method. Results are presented for representative CPC collectors with tubular absorbers of concentration ratio 2. The effect of Grashof number, truncation and tilt angle were investigated. Generally, higher rates of heat transfer between the tubular absorber and the flat cover plate of the cavity are associated with larger Grashof numbers and shallower cavities. The maximum heat transfer rates occur when the tilt angle is about 60 deg. Contour plots are obtained for the field variables and these provide an insight into the spatial characteristics of the convective mechanisms within the cavity.

APA, Harvard, Vancouver, ISO, and other styles

28

Collares-Pereira, M. "Description and Testing of a Non-Evacuated 1.5×CPC Collector Thermal Performance Comparison With Other Collector Types." Journal of Solar Energy Engineering 107, no. 4 (November 1, 1985): 277–80. http://dx.doi.org/10.1115/1.3267692.

Full text

Abstract:

A 1.5 × non-evacuated CPC type concentrator is described and tested. The results obtained can be summarized by F′ηo = 0.673 ± 0.001 and F′U = (2.64 ± 0.041) W/m2 ° C. The early average performance of the concentrator is calculated and compared with the performance of two other collector types at constant operating temperature: a selectively coated regular flat plate and an evacuated tube type collector. It is shown that the concentrator performs better than both the flat plate and the evacuated tube collector for constant operating temperatures for 35° C to 100° C in a climate like the one in Lisbon. The three collectors are also compared operating in two systems: (1) DHW in which they all deliver comparable yearly average amounts of energy, and (2) IPH at 95° C (process return temperature = 65° C) in which the flat plate delivers ∼30 percent less yearly energy on the average in comparison with the other two which behave very much in the same way. The 1.5 × low cost is discussed in comparison with the other two collector types, establishing the concentrator as an excellent choice for hot water heating applications.

APA, Harvard, Vancouver, ISO, and other styles

29

Chinnasamy, Subramaniyan, Subramani Jothirathinam, Kalidasan Balasubramanian, Anbuselvan Natarajan, Thangaraj Yuvaraj, Natarajan Prabaharan, and Tomonobu Senjyu. "Investigation on the Optical Design and Performance of a Single-Axis-Tracking Solar Parabolic trough Collector with a Secondary Reflector." Sustainability 13, no. 17 (September 3, 2021): 9918. http://dx.doi.org/10.3390/su13179918.

Full text

Abstract:

The design of solar concentrating collectors for the effective utilization of solar energy is a challenging condition due to tracking errors leading to different divergences of the solar incidence angle. To enhance the optical performance of solar parabolic trough collectors (SPTC) under a diverged solar incidence angle, an additional compound parabolic concentrator (CPC) is introduced as a secondary reflector. SPTC with CPC is designed and modeled for a single axis-tracking concentrating collector based on the local ambient conditions. In this work, the optical performance of the novel SPTC system with and without a secondary reflector is investigated using MATLAB and TRACEPRO software simulations for various tracking errors. The significance parameters such as the solar incidence angle, aperture length, receiver tube diameter, rim angle, concentration ratio, solar radiation, and absorbed flux are analyzed. The simulation results show that the rate of the absorbed flux on the receiver tube is significantly improved by providing the secondary reflector, which enhances the optical efficiency of the collector. It is found that the optical efficiency of the SPTC with a secondary reflector is 20% higher than the conventional collector system for a solar incidence angle of 2°. This work can effectively direct the choice of optimal secondary reflectors for SPTC under different design and operating conditions.

APA, Harvard, Vancouver, ISO, and other styles

30

Strauss, André, Brandon Reyneke, Monique Waso, and Wesaal Khan. "Compound parabolic collector solar disinfection system for the treatment of harvested rainwater." Environmental Science: Water Research & Technology 4, no. 7 (2018): 976–91. http://dx.doi.org/10.1039/c8ew00152a.

Full text

Abstract:

Cost-effective SODIS-CPC systems significantly improved the microbial quality of harvested rainwater. These point-of-use treatment systems can be implemented on site where standard water infrastructure cannot be employed. The use of a first flush diverter as a pre-filtration step also reduced microbial contamination.

APA, Harvard, Vancouver, ISO, and other styles

31

Zhang, Ruotian, Wei Yuan, Bing He, and Lijun Han. "High performance photovoltaic/thermal subsystem photoelectric conversion solar cell coupled thermal energy storage system." Thermal Science 24, no. 5 Part B (2020): 3213–20. http://dx.doi.org/10.2298/tsci191121112z.

Full text

Abstract:

Based on the traditional solar photovoltaic/thermal (PV/T) system, the experimental platform of compound parabolic collector (CPC) coupled PV/T system was constructed, and the measurement and control system (MCS) of the experimental platform was also proposed. According to the evaluation system of photothermal PV energy conversion performance, the change rule of photothermal power (PTP) of CPC coupled PV/T system was studied and analyzed when the inlet water temperature was 20?C and the ambient temperature was 28?C, as well as the change rule of thermal efficiency and photoelectric efficiency (PEE). When the solar radiation intensity reached 800 W/m2, the outlet water temperature of the system could reach more than 45?C under the condition that the power efficiency of the system was more than 10%, which could meet the demand of water and heating. The total amount of solar radiation in the whole day was 17.32 MJ/m2, the photoelectric output of CPC coupled PV/T system was 18.32 MJ, the average PEE was 9.2%, the collector heat was 99.33 MJ, the average photothermal efficiency was 50.1%, and the total efficiency of the system was 58.7%. In a word, compared with the traditional collector, the PV/T system proposed has better performance.

APA, Harvard, Vancouver, ISO, and other styles

32

Adsten, M., B. Hellström, and B. Karlsson. "Measurement of radiation distribution on the absorber in an asymmetric CPC collector." Solar Energy 76, no. 1-3 (January 2004): 199–206. http://dx.doi.org/10.1016/j.solener.2003.08.024.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Adsten, M., A. Helgesson, and B. Karlsson. "Evaluation of CPC-collector designs for stand-alone, roof- or wall installation." Solar Energy 79, no. 6 (December 2005): 638–47. http://dx.doi.org/10.1016/j.solener.2005.04.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Souliotis, M., P. Quinlan, M. Smyth, Y. Tripanagnostopoulos, A. Zacharopoulos, M. Ramirez, and P. Yianoulis. "Heat retaining integrated collector storage solar water heater with asymmetric CPC reflector." Solar Energy 85, no. 10 (October 2011): 2474–87. http://dx.doi.org/10.1016/j.solener.2011.07.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Kessentini, Hamdi, and Chiheb Bouden. "Numerical and experimental study of an integrated solar collector with CPC reflectors." Renewable Energy 57 (September 2013): 577–86. http://dx.doi.org/10.1016/j.renene.2013.02.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Fraidenraich, N., R. de C. F. de Lima, C. Tiba, and E. M. de S. Barbosa. "Simulation model of a CPC collector with temperature-dependent heat loss coefficient." Solar Energy 65, no. 2 (February 1999): 99–110. http://dx.doi.org/10.1016/s0038-092x(98)00118-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

umani, M. Aras, M. Thiruppa thirajan, R. Anbar asan, and T. Dinesh kumar. "Solar Air Heating Using CPC - (Compound Parabolic Concentrator) Collector for Agro Industries." International Journal of Engineering Trends and Technology 66, no. 2 (December 25, 2018): 73–77. http://dx.doi.org/10.14445/22315381/ijett-v66p213.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Hwang, An-Na, Myung-Hee Park, Beom-Guk Lim, and Jee-Hyeong Khim. "Study of Degradation of Bisphenol A with $TiO_2$ Powder in CPC System." Journal of Korean Society of Hazard Mitigation 11, no. 1 (February 28, 2011): 107–12. http://dx.doi.org/10.9798/kosham.2011.11.1.107.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Kedar, S. A., A. K. Bewoor, G. Murali, Ravinder Kumar, Milad Sadeghzadeh, and Alibek Issakhov. "Effect of Reflecting Material on CPC to Improve the Performance of Hybrid Groundwater Solar Desalination System." International Journal of Photoenergy 2021 (April 6, 2021): 1–13. http://dx.doi.org/10.1155/2021/6675236.

Full text

Abstract:

Water-energy nexus is a crucial and challenging concern that addressing it is noteworthy for the future of human beings. In addition, freshwater production is a highly energy-intensive procedure. Therefore, developing a suitable solution for this problem is of importance. In the present scenario, solar energy is one of the suitable options for desalination because solar energy is available at a low cost, is clean for the environment, and is widely available. Generally, solar collectors such as flat plate collectors (FPC) and evacuated tube collectors were experimented for desalination applications. This work presents an experimental investigation of a single-stage hybrid (ETC-CPC) groundwater solar desalination system. A compound parabolic concentrator (CPC) is placed below the evacuated tube collector (ETC) for collecting solar radiations to transfer heat to evacuated tubes which improves performance in the case of different weather conditions of Pune city in India. Experimental results show that the hybrid solar groundwater desalination system, by maintaining the optimum distance of 20 mm between ETC and CPC with Mylar as the reflecting material, could offer a drinking water production rate of up to 3.4 l/(m2h)/day. However, the proposed single-stage hybrid (ETC+CPC) groundwater solar desalination system with aluminum foil as a reflecting material could generate 1.9 liters of soft water per day. Further, the use of Mylar as a reflecting material could generate 3.5 liters of soft water per day.

APA, Harvard, Vancouver, ISO, and other styles

40

Wang, Guo Gui, Yi Qing Gao, and Meng Chao Xiao. "Ultraviolet LED Light Source System for Lithography." Applied Mechanics and Materials 667 (October 2014): 405–8. http://dx.doi.org/10.4028/www.scientific.net/amm.667.405.

Full text

Abstract:

We designed a lithographic system, which consists of an ultraviolet LED array as the source, a Compound Parabolic Collector (CPC) as the light collection and collimator, a double fly’s eye len and a convergent lens as light energy Homogenization unit. The second fly’s lens as a field lens is placed to the back focal plane of the first one to improve the light energy uniformity as the light rays output from the CPC are not strictly parallel. The simulation based on optical software indicated that the lithographic system is good at collecting and distributing uniformly light energy. It is a better solution as ultraviolet LED is good at space, price, Environmental Protection compared with Ultraviolet (UV) laser and high pressure mercury lamp.

APA, Harvard, Vancouver, ISO, and other styles

41

Kumar, Birendra, Rajen Kumar Nayak, and S. N. Singh. "Experimental Analysis of the Thermo-Hydraulic Performance on a Cylindrical Parabolic Concentrating Solar Water Heater with Twisted Tape Inserts in an Absorber Tube." Zeitschrift für Naturforschung A 73, no. 5 (May 24, 2018): 431–39. http://dx.doi.org/10.1515/zna-2018-0023.

Full text

Abstract:

AbstractA twisted tape inserted in an absorber tube may be an excellent option to enhance the performance of a cylindrical parabolic concentrating solar collector (CPC). The present work is an experimental study of the flow and heat transfer with and without twisted tape inserts in the absorber tube of a CPC. Results are presented for mass flow rates of water, ṁ=0.0198–0.0525 kg/s, twist ratio, y=5–10 and Reynolds number, Re=2577.46–6785.55. In the present study, we found that the outlet water temperature, collector efficiency and Nusselt number (Nu) are higher in the twisted tapes as compared to those without the twisted tape inserts in the absorber tube of the CPC. For fixed mass flow rate of water ṁ, the To and η increased with the decrease in twist ratio, y, and is higher in lower twist ratio, y=5, of the twisted tapes. The whole experiment was performed at the Indian Institute of Technology (ISM) in Dhanbad, India during the months of March–April 2017. Based on the experimental data, the correlations for the Nu and friction factor were also developed.

APA, Harvard, Vancouver, ISO, and other styles

42

Buttinger, Frank, Thomas Beikircher, Markus Pröll, and Wolfgang Schölkopf. "Development of a new flat stationary evacuated CPC-collector for process heat applications." Solar Energy 84, no. 7 (July 2010): 1166–74. http://dx.doi.org/10.1016/j.solener.2010.03.022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Wang, Yinfeng, Yuezhao Zhu, Haijun Chen, Xin Zhang, Li Yang, and Chuanhua Liao. "Performance analysis of a novel sun-tracking CPC heat pipe evacuated tubular collector." Applied Thermal Engineering 87 (August 2015): 381–88. http://dx.doi.org/10.1016/j.applthermaleng.2015.04.045.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Acharya, S. K., W. Roetzel, and J. Hussain. "Refrigerants as working fluid in a CPC collector system for electric power generation." Renewable Energy 3, no. 6-7 (September 1993): 757–61. http://dx.doi.org/10.1016/0960-1481(93)90083-s.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Maya-Treviño, M. L., M. Villanueva-Rodríguez, J. L. Guzmán-Mar, L. Hinojosa-Reyes, and A. Hernández-Ramírez. "Comparison of the solar photocatalytic activity of ZnO–Fe2O3 and ZnO–Fe0 on 2,4-D degradation in a CPC reactor." Photochemical & Photobiological Sciences 14, no. 3 (2015): 543–49. http://dx.doi.org/10.1039/c4pp00274a.

Full text

Abstract:

A comparative study of the catalytic activity of ZnO–Fe₂O₃ and ZnO–Fe⁰ 0.5 wt% materials was carried out for the degradation of commercial 2,4-D herbicide using a compound parabolic collector (CPC) reactor.

APA, Harvard, Vancouver, ISO, and other styles

46

Krishnan, S. Gopala. "An Experimental Analysis of Hybrid - Pyramid type Solar Desalination with Concentric Parabolic Collector (CPC)." International Journal for Research in Applied Science and Engineering Technology 6, no. 3 (March 31, 2018): 2426–30. http://dx.doi.org/10.22214/ijraset.2018.3555.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Horta, Pedro, J. C. C. Henriques, and Manuel Collares-Pereira. "Impact of different internal convection control strategies in a non-evacuated CPC collector performance." Solar Energy 86, no. 5 (May 2012): 1232–44. http://dx.doi.org/10.1016/j.solener.2012.01.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Alfegi, Ebrahim M. A., Alhadi A. S. Abosbaia, Khaled M. A. Mezughi, and Kamaruzzaman Sopian. "Performance of double –pass solar collector with CPC and fins for heat transfer enhancement." IOP Conference Series: Earth and Environmental Science 16 (June 17, 2013): 012061. http://dx.doi.org/10.1088/1755-1315/16/1/012061.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Gu, Xiaoguang, Robert A. Taylor, Graham Morrison, and Gary Rosengarten. "Theoretical analysis of a novel, portable, CPC-based solar thermal collector for methanol reforming." Applied Energy 119 (April 2014): 467–75. http://dx.doi.org/10.1016/j.apenergy.2014.01.033.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Proell, M., and M. Hilt. "The Significance of the Fluid to PV Thermal Coupling in a CPC PVT Collector." Energy Procedia 57 (2014): 3120–29. http://dx.doi.org/10.1016/j.egypro.2015.06.067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'CPC Collector'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles