Abstract
A combined solar photovoltaic and thermal (PV/T) system is not just a product that makes our life easier, nor is it a luxury. In the future economics will make the use of the PV/T system essential. The purpose of this to improve the energy balance in a PV/T system, by control-ling the thermal energy (useful heat) production for the domestic hot water as well as the electrical production. Simulation and analysis of a simplified model of the PV/T system for cooling the PV cell and heating the working fluid inside of the absorber pipe attached at the back of the PV cell were implemented in MATLAB /Simulink software. The optimal electrical and thermal power were obtained by selecting a par-ticular value of Rse that partially converts the output of the PV cell into useful thermal energy. It was discovered that increasing the chosen value of Rse results in higher heat dissipation in the PV/T cell, an increase in thermal efficiency, and also a decrease in electrical efficiency.
Highlights
Solar modules convert only 4 to 17 % of solar radiation, depending on the type of solar cell and the operating conditions [1]
The photovoltaic and solar thermal (PV/T) system improved the efficiency of solar energy conversion
The work that has been undertaken in this paper is considered a modest contribution to understanding the complex phenomena governing heat transfer in PV/T models
Summary
Solar modules convert only 4 to 17 % of solar radiation, depending on the type of solar cell and the operating conditions [1]. The hot water can act as an excellent heat source for residential and architectural applications and solar-assisted heating and cooling technologies [7], [8] In this present study, the focus is to determine the energy impact created due to the combination of photovoltaic and thermal energy (PV/T). These systems provide analysis and modelling of the energy utilisation of PV/T system, as well as the balance of exchange of heat and electrical power generated. 20 °C Gnielinski correlation Fixed-discretisation pump 200 L 20°C Atmospheric pressure
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