Abstract
The photovoltaic thermal (PVT) system is an up-and-coming renewable energy technology that simultaneously produces thermal and electrical energy. The objective of this paper is to improve the electrical efficiency of the photovoltaic thermal system with and without ∇-groove absorber. This study is an experimental investigation under an indoor solar simulator at The National University of Malaysia. The electrical characteristic of the PVT system is characterized by the scheming current (A), voltage (V), power (W) curves. The solar intensity and mass flow rate affected the electrical characteristic. The increase of produced power and electrical efficiency is caused by increasing the solar intensity and mass flow rate. The comparison between ∇-groove absorber and without ∇-groove absorber shows that the use of ∇-absorber can increase electrical efficiency.
Highlights
Thermal and electrical energy can be harvest by solar energy
The elimination of heat from the PV panel is transferred by fluid; it is called the cooling process to improve electrical efficiency
The results show that the inverter is fewer voltage and current harmonic gratified
Summary
Thermal and electrical energy can be harvest by solar energy. Many technology achievements occurred to connect the energy from the sun and practiced it in the application. The heat of the photovoltaic panel is utilized for the application of PVT technology. The elimination of heat from the PV panel is transferred by fluid (water or air); it is called the cooling process to improve electrical efficiency. The heat useful is converted to hot water or hot air for the current application. The main benefits of the PVT system are that its system can produce thermal and electrical simultaneously, for any application, such as for cooling, heating, and drying. A combination of photovoltaic panels and solar thermal is good for limited space
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