Investigate the Impact on Deploying Photovoltaic Panel Roof against Indoor Temperature

Choong, Qian Kai (2022) Investigate the Impact on Deploying Photovoltaic Panel Roof against Indoor Temperature. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

Solar panel or photo-voltaic module, is an assembly of PV cells mounted in a framework for installation. Solar panels use sunlight as a source of energy to generate direct current electricity. Other than that, by installing PVs it could helped to reduce the use of electricity which is generated by using fossil fuels and able to create a self-sustain system with green energy source. Furthermore, with PVs on the roof it could also bring in benefits like increase the properties values, saving on electricity bill and last but not least it could benefit in cooling the building indoor temperature. It has been proved through this simulation and other research papers supports. The simulation is to compared the normal exposed rooftop with rooftop covered partially by PV panel by using Ansys Transient Thermal Analysis. It is simulated with a single story-house on a clear February day to demonstrate the daily temperature and heat flux changes. The PV rooftop’s ceiling temperature experienced a 2°C temperature drop with exposed rooftop ceiling temperature is 30.55°C. Meanwhile for the PV rooftop daily average heat flux on the rooftop shown significant drop which more than 55% in daytime range from 0730 to 1930. The reduce on ceiling temperature will result in drop of indoor temperature, with Malaysia has hot and humid temperature in between 22°C to 32°C. The results also further verified by few of the research and experiment on PV roof system or Building Integrated Photovoltaics (BIPV). This leads to less roof thermal stress results in energy saving especially on use of air-conditioning with less hydro-fluorocarbon (HFCs) emission and at the same time secure human a more comfort environment to stay in.