Optimization of a concentrating photovoltaic thermal (CPV/T) system used for a domestic application

Renno, Carlo

doi:10.1016/j.applthermaleng.2014.03.026

Cited by 73 publications

(28 citation statements)

References 28 publications

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“…For a medium concentration module, the payback varies between 5 and 8 years. These values are congruent with the specifications of small-scale commercial systems (Sahaj Solar Power Inc. Ltd., Gujarat, India) and large-scale solar installations [28,29], and they increase when a CPV/T system is considered [11]. The simulation time interval has been set to 10 seconds in order to achieve the best compromise between the duration of the simulation process and the consistency of the thermal exchange analysis.…”

Section: Resultsmentioning

confidence: 66%

“…Referring to the electric, heating and cooling loads of a domestic user, in [10] the design and model of a concentrating photovoltaic thermal system are studied. Moreover, in [11] the optimized value of the concentration factor able to decrease the CPV/T system size and to provide a fluid outlet temperature, that satisfies the thermal and cooling demands, is determined in each working condition. Hence, there are different CPV/T systems that allow one to obtain a combined energy production, but there is not yet a standard configuration of these systems.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Simulation of a CPV/T System Using the Finite Element Method

Renno

Giacomo

2014

Energies

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Abstract:The aim of this paper is the determination of a concentrating thermo-photovoltaic (CPV/T) system dynamic model by means of the finite element method (FEM). The system consist of triple-junction InGaP/InGaAs/Ge (indium-gallium phosphide/indium-gallium-arsenide/germanium) solar cells connected to a metal core printed circuit board (MCPCB) placed on a coil circuit used for the thermal energy recovery. In particular, the main aim is to determine the fluid outlet temperature. It is evaluated corresponding both to a constant cell temperature equal to 120 °C, generally representing the maximum operating temperature, and to cell temperature values instantly variable with the direct normal irradiation (DNI). Hence, an accurate DNI analysis is realized adopting the Gordon-Reddy statistical model. Using an accurate electric model, the cell temperature and efficiency are determined together with the CPV/T module electric and thermal powers. Generally, the CPV system size is realized according to the user electric load demand and, then, it is important to evaluate the necessary minimum concentration ratio (Cmin), the limit of CPV system applicability, in order to determine the energy convenience profile. The fluid outlet temperature can be then obtained by the FEM analysis to verify if a CPV/T system can be used in solar heating and cooling applications. OPEN ACCESSEnergies 2014, 7 7396

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Section: Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Dynamic Simulation of a CPV/T System Using the Finite Element Method

Renno

Giacomo

2014

Energies

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“…In recent years, concentration photovoltaic/thermal (CPVT) has been developed greatly. These systems focus the sunlight on a focal area which allows the system (photovoltaic cell and absorber) to produce electrical and thermal energies . CPVT is a photovoltaic technology that generates electricity from sunlight .…”

Section: Introductionmentioning

confidence: 99%

“…These systems focus the sunlight on a focal area which allows the system (photovoltaic cell and absorber) to produce electrical and thermal energies. [1][2][3] CPVT is a photovoltaic technology that generates electricity from sunlight. 4 Unlike conventional photovoltaic systems, it uses lenses or curved mirrors to focus sunlight onto small, highly efficient, multi-junction (MJ) solar cells.…”

Section: Introductionmentioning

confidence: 99%

Optical modeling and optimization of parabolic trough concentration photovoltaic/thermal system

Alayi

Kasaeian

Atabi

2019

Env Prog and Sustain Energy

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In this research, a genetic algorithm has been used to optimize the focal area of the parabolic trough concentration photovoltaic/thermal. First, based on the physical and thermodynamic variables, the system modeling was performed; then, by changing the variables were calculated the effect of these parameters on the electrical and thermal efficiencies. In the next step, the optimization was conducted by the mentioned algorithms. The objective function consists of two targets of electrical efficiency combined with thermal efficiency. The optimization variables include the length of the system, the pipe diameter, the collector diameter, mass flow rate, and the photovoltaic cell width. After running the program in the normal mode, the highest electrical and thermal efficiencies were 0.2063 and 0.4473 for the length of 10 m, the collector diameter of 1.2 m, the flow rate of 0.15 kg/s, the pipe diameter of 0.03 m, and the photovoltaic cell width of 0.02 m. According to the genetic algorithm, the optimal answer for the total efficiency of this system is 0.84737.

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“…However, water‐type PV/T systems can achieve greater efficiencies because of their better cooling performance . To increase energy efficiency and further reduce the cost of a PV/T system, concentrating photovoltaic/thermal (CPV/T) systems that have solar concentrators have been developed ; these cheaper concentrating systems reduce the area required for expensive traditional solar cells .…”

Section: Introductionmentioning

confidence: 99%

Solar radiation transfer and performance analysis for a low concentrating photovoltaic/thermal system

Zhao

Wang

et al. 2015

Env Prog and Sustain Energy

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In this study, we investigated a concentrating solar photovoltaic/thermal system that uses solar radiation in the visible and infrared ranges separately. In this system, photoelectric and photothermal conversions are achieved independently via the thermal unit and the photovoltaic (PV) module, respectively. The operation of the thermal unit is not affected by temperature limitations imposed by the PV module. The results indicate that water as the working fluid in the thermal unit directly absorbs 33% of the solar radiation. When the mass flow rate was reduced, the water temperature at the thermal unit outlet increased; however, both the temperature and the electrical efficiency of the solar cell remained constant. When the solar radiation increased from 640 to 3200 W/m2, the concentrating photovoltaic/thermal (CPV/T) system produced high‐grade heat with an only 1.4% drop in electrical efficiency. Moreover, the exergetic efficiency of the CPV/T system increased with increasing incident solar irradiance. © 2015 American Institute of Chemical Engineers Environ Prog, 35: 263–270, 2016

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Optimization of a concentrating photovoltaic thermal (CPV/T) system used for a domestic application

Cited by 73 publications

References 28 publications

Dynamic Simulation of a CPV/T System Using the Finite Element Method

Dynamic Simulation of a CPV/T System Using the Finite Element Method

Optical modeling and optimization of parabolic trough concentration photovoltaic/thermal system

Solar radiation transfer and performance analysis for a low concentrating photovoltaic/thermal system

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