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Experimental and theoretical model of a concentrating photovoltaic and thermal system

机译：聚光光伏和热力系统的实验和理论模型

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摘要

The experimental and theoretical analysis of a concentrating photovoltaic and thermal system (CPV/T) presented in this paper allows to evaluate the electrical parameters of the system, the concentration factor, the cell temperature in different working conditions and the fluid temperature. In particular, the experimental values of the cell temperature represent the input of a model developed in ANSYS-CFX. This model evaluates the theoretical temperature values of the fluid that flows into the cooling circuit of the CPV/T system, designed with the CATIA software. Hence, both electrical and thermal parameters have been analyzed in order to evaluate the potential energy production of a concentrating photovoltaic and thermal system. Different configurations of the CPV/T system have been analyzed and the value of the concentration factor has been determined by means of an experimental procedure. The experimental and theoretical electric powers are compared in different climatic conditions considering a solar radiation included between 500 and 900 W/m(2). The electric efficiency is also evaluated as function of solar irradiance and cloudiness. Moreover, the fluid temperature as function of the experimental cell temperature is determined in different working conditions by means of the ANSYS model. The fluid temperature is also theoretically determined varying the operating conditions along the circuit. Finally, a study of the electrical and thermal performances represents a key-factor to develop a more complex prototype of a CPV/T system. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文介绍的聚光光伏和热力系统（CPV / T）的实验和理论分析可以评估该系统的电参数，浓度系数，不同工作条件下的电池温度以及流体温度。特别地，电池温度的实验值代表在ANSYS-CFX中开发的模型的输入。该模型评估由CATIA软件设计的，流入CPV / T系统冷却回路的流体的理论温度值。因此，已经分析了电参数和热参数，以便评估集中式光伏和热系统的潜在能量产生。已分析了CPV / T系统的不同配置，并已通过实验程序确定了浓缩系数的值。考虑到太阳辐射在500至900 W / m（2）之间，在不同气候条件下比较了实验和理论上的电力。还根据太阳辐照度和阴霾评估电效率。此外，借助于ANSYS模型在不同的工作条件下确定了作为实验池温度的函数的流体温度。从理论上讲，还可以通过改变回路的工作条件来确定流体温度。最后，对电气和热性能的研究代表了开发CPV / T系统更复杂原型的关键因素。 （C）2016 Elsevier Ltd.保留所有权利。

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