Improving the efficiency of photovoltaic panels using air exhausted from HVAC systems: Thermal modelling and parametric analysis

Case Studies in Thermal Engineering

Rabih Murr¹  Jalal Faraj²  Hicham El Hage³  Mahmoud Khaled³  Wassim Salameh³  Cathy Castelain⁴ 

[1] Lebanese University, Faculty of Technology, Saida, Lebanon;Energy and Thermofluid Group, International University of Beirut BIU, Beirut, Lebanon;Energy and Thermofluid Group, Lebanese International University LIU, Bekaa, Lebanon;Laboratory of Thermal Energy of Nantes, LTEN, Polytech’ Nantes, University of Nantes, Nantes, France;

关键词: Photovoltaic panel;    Efficiency;    Improvement;    Exhaust air;    Thermal modeling;    Parametric analysis;   

DOI  :  

来源: DOAJ

【 摘 要 】

The present work proposes the engagement of relatively cold air exhausted from Heating, Ventilating and Air Conditioning (HVAC) systems, that exist in structures such as residential commercial and industrial, to reduce the PV modules’ operational temperature. To proceed, a thermal resistance model in steady state is developed along with its corresponding iterative procedure and calculations which are carried out for different configurations and scenarios. The thermal modeling was validated by comparing it to experimental measurement found in the literature. It was revealed that the PV modules’ temperature can be reduced with increasing the mass flow rate of the exhaust air. However, the air mass flow rate depends on the cooling load need; which increases with increasing the cooling load. The efficiency of the PV has shown an increase from 11 to 18% when the cooling load increases from 0 to 160 kW for a solar radiation of 500 W/m2. Moreover, there is an optimum height for the exhaust air duct for each cooling load that must be determined.

【 授权许可】

Unknown