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Energies 2014, 7(11), 7395-7414; doi:10.3390/en7117395

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

1
Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (Salerno), Italy
2
University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (Salerno), Italy
*
Author to whom correspondence should be addressed.
Received: 16 July 2014 / Revised: 30 September 2014 / Accepted: 6 November 2014 / Published: 14 November 2014
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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. View Full-Text
Keywords: CPV/T system; heat recovery; DNI modeling; finite element method CPV/T system; heat recovery; DNI modeling; finite element method
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Renno, C.; De Giacomo, M. Dynamic Simulation of a CPV/T System Using the Finite Element Method. Energies 2014, 7, 7395-7414.

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