Bi-fluid cooling effect on electrical characteristics of flexible photovoltaic panel

Nurul Shahirah Rukman, Ahmad Fudholi, Putri Adia Utari, Cheku Nurul Aisyah, Andri Joko Purwanto, Rakhmad Indra Pramana, Erie Martides, Ant. Ardath Kristi, Nilofar Asim, Mohammad Hossein Yazdi, Hazim Moria, Husam Abdulrasool Hasan, Zeki Ahmed Darwish

Abstract

A photovoltaic (PV) system integrated with a bi-fluid cooling mechanism, which is known as photovoltaic thermal (PVT) system, was investigated. The electrical characteristics of flexible solar panel were evaluated for PV and PV with bi-fluid (air and water) cooling system. The integration of monocrystalline flexible solar panel into both systems was tested under a fixed solar radiation of 800 W/m2. A total of 0.04–0.10 kg/s of air flow was utilised in PV with cooling system with a fixed water mass flow rate of 0.025 kg/s. The efficiencies of flexible panel for PV and PV with cooling system were explored. For PV with bi-fluid flow, the highest obtained efficiency of module was 15.95% when 0.08 kg/s of air and 0.025 kg/s of water were allowed to flow through the cooling system. Compared with PV without cooling mechanism, the highest efficiency of module was 13.35% under same solar radiation. Current–voltage and power graphs were also plotted to present the electrical characteristics (current, voltage and power) generated by both systems.




Keywords


PV efficiency; PV current; PV voltage; PV power; I–V–P curves

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References


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