Hazim Moria
Department of Mechanical Engineering Technology, Yanbu Industrial College, Yanbu Al-Sinaiyah City 41912, Kingdom of Saudi Arabia

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Experimental and model validation of photovoltaic-thermal (PVT) air collector: exergy analysis Ahmad Fudholi; Mariyam Fazleena Musthafa; Goh Li Jin; Rudi Darussalam; Ahmad Rajani; Andri Setiawan; Anwar Anwar; Mohammad Hossein Yazdi; Hazim Moria; Mohd Yusof Othman; Mohd Hafidz Ruslan; Kamaruzzaman Sopian
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 12, No 1 (2021)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2021.v12.10-17

Abstract

Solar energy is a renewable energy that can produce heat via a thermal system and generate electricity via a photovoltaic (PV) module. A photovoltaic-thermal (PVT) collector is a system that has a PV module combined with a thermal collector system. The PVT collector is a popular technology for harvesting solar energy. A PVT collector can generate both electrical and thermal energies simultaneously. The study aims to validate the PV and outlet temperature for various mass flow rates and solar radiation. To develop a predictive model, a steady-state energy analysis of a PVT air collector was performed. An energy balance equation was solved using the matrix inversion method. The theoretical model was developed and validated against the experimental results, which have a similar trend and are consistent with the experimental results. On the other hand, the validated model was used to study the performances of PVT air collectors using exergy analysis for the mass flow rate ranging from 0.007 kg/s to 0.07 kg/s and solar radiation ranging from 385 W/m2 to 820 W/m2. The result from the mathematical model was found to be consistent with the experimental data with an accuracy of about 95 %. The average PVT exergy efficiency was found to be 12.7 % and 12.0 % for the theoretical and experimental studies, respectively.
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
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 12, No 1 (2021)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2021.v12.51-56

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.