Water desalination with concentrating photovoltaic/thermal (CPVT) systems

Mittelman, Gur; Kribus, Abraham; Mouchtar, Ornit; Dayan, Abraham

doi:10.1016/j.solener.2009.04.003

Cited by 127 publications

(37 citation statements)

References 24 publications

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“…In this case, the primary side of the heat exchanger is at constant temperature equal to the temperature of the metallic substrate. This assumption can be considered acceptable as a consequence of the high thermal conductivity of the metallic substrate [14,18,19,24,28] and allows one to develop a 0-D model of the CPVT. According to the 0-D approach here implemented, the performance of the heat exchanger can be calculated using the well-known -NTU technique [36].…”

Section: Cpvt Simulation Modelmentioning

confidence: 99%

“…The thermal resistance of the metallic substrate, r sub , is typically orders of magnitude lower than the one of the fluid. The fluid heat transfer coefficient, h fluid , is calculated using the following correlation [35]: (17) Finally, the heat transfer effectiveness is [36]: (18) The energy balance for the considered heat exchanger is: (18) where T sub is the temperature of the metallic substrate. …”

Section: Cpvt Simulation Modelmentioning

confidence: 99%

“…Similarly, the availability of theoretical and experimental studies investigating CPVT performance is scarce. In particular, Mittelman et al [14,18,19] performed some experimental and theoretical works dealing with CPVT systems. In reference [19] presented a novel miniature CPVT based on a dish concentrator (0.95 m 2 ) and a silicon PV cell.…”

Section: Introductionmentioning

confidence: 99%

“…The cost of the system was evaluated at 2.5 $ per peak electric watt. The operation at high temperature of similar CPVT systems was also analyzed both for solar cooling [14] and water desalination [18] applications. A Parabolic Trough CPVT prototype was experimentally investigated by Coventry [20].…”

Section: Introductionmentioning

confidence: 99%

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Parabolic Trough Photovoltaic/Thermal Collectors: Design and Simulation Model

Calise

Vanoli

2012

Energies

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This paper presents a design procedure and a simulation model of a novel concentrating PVT collector. The layout of the PVT system under investigation was derived from a prototype recently presented in literature and commercially available. The prototype consisted in a parabolic trough concentrator and a linear triangular receiver. In that prototype, the bottom surfaces of the receiver are equipped with mono-crystalline silicon cells whereas the top surface is covered by an absorbing surface. The aperture area of the parabola was covered by a glass in order to improve the thermal efficiency of the system. In the modified version of the collector considered in this paper, two changes are implemented: the cover glass was eliminated and the mono-crystalline silicon cells were replaced by triple-junction cells. In order to analyze PVT performance, a detailed mathematical model was implemented. This model is based on zero-dimensional energy balances. The simulation model calculates the temperatures of the main components of the system and the main energy flows Results showed that the performance of the system is excellent even when the fluid temperature is very high (>100 °C). Conversely, both electrical and thermal efficiencies dramatically decrease when the incident beam radiation decreases.

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Section: Cpvt Simulation Modelmentioning

confidence: 99%

Section: Cpvt Simulation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Parabolic Trough Photovoltaic/Thermal Collectors: Design and Simulation Model

Calise

Vanoli

2012

Energies

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“…The first category corresponds to concentrated PV-T collector, with either high concentration factor [2][3] or lower concentration factor [4][5][6].…”

Section: Classification Of Pv-t Collectorsmentioning

confidence: 99%

Measurements and Benchmark of PVT – Collectors According To EN 12975 and Development of a Standardized Measurement Procedure

Hofmann

Dupeyrat

Krämer³

et al. 2010

Proceedings of the EuroSun 2010 Conference

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SynopsisHybrid Photovoltaic-thermal-collectors (PV-T) may have a number of advantages compared to stand-alone PV or solar-thermal-collectors. To mention one of them for example the overall efficiency of a PV-T-system is higher than the efficiency of the individual systems [1]. Recently, there have been efforts by the "European Solar Keymark Network" and also in national organizations to standardize PV-T collector measurements and make it possible to assign a "Solar Keymark". That would be a great benefit for PV-T collectors and subsidiary for a successful implementation in the market.Fraunhofer ISE runs an accredited laboratory for solar thermal components (TestLab Solar Thermal Systems) and also an accredited test centre for PV modules (TestLab PV Modules) and is able to combine both strengths to measure uncovered PV-T collectors and covered PV-T collectors properly. Based on the testing facilities for solar air-collectors, PV-T air-collectors can be tested as well. Recently even Concentrated PV-T collectors are in the process of getting characterised. By testing several PV-T collectors Fraunhofer ISE has created special know-how for measuring different PV-T collectors and developed an automated procedure for efficiency tests.In this paper, the interest in the standardization of measurements of a PV-T collector is discussed, and different measurement procedures are shown. It illustrates possible testing methods for different collectors, testing procedures and results from tests already performed.

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Thermal analysis of parabolic trough concentration photovoltaic/thermal system for using in buildings

Alayi

Kasaeian

Atabi

2019

Env Prog and Sustain Energy

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In this research, a parabolic trough concentrating photovoltaic thermal (CPVT) was used to provide the energy needed for a residential building. In order to do this, the required amount of heating and cooling and electrical energy was first obtained using Carrier software, then the electrical demand was obtained according to the standard model and governing relations. In the next step, the CPVT as a source of heat and cooling, and electrical energy for the building, was simulated in TRNSYS software. In order to achieve the highest reliability in terms of heat supply and reduction of thermal losses in the whole system, phase‐change material was used as a heat storage source. Mehrabad (Tehran) was considered as the target area in simulation. For this area the highest radiation intensity is 7.79 kWh/m2·day, which shows the potential of the region. The simulation results of the studied system showed that the highest output temperature and solar fraction for total load in building from CPVT was 150°C and 0.0.2926. © 2019 American Institute of Chemical Engineers Environ Prog, 38: e13220, 2019

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Water desalination with concentrating photovoltaic/thermal (CPVT) systems

Cited by 127 publications

References 24 publications

Parabolic Trough Photovoltaic/Thermal Collectors: Design and Simulation Model

Parabolic Trough Photovoltaic/Thermal Collectors: Design and Simulation Model

Measurements and Benchmark of PVT – Collectors According To EN 12975 and Development of a Standardized Measurement Procedure

Thermal analysis of parabolic trough concentration photovoltaic/thermal system for using in buildings

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