Performance Enhancement of PV Cooling System - Using VRF Technology

From the various techniques that enhances the solar fraction of solar Photovoltaic cooling system VRF technology is most important. Use of VRF technology enhances the solar fraction along with the reduction in the energy consumption and payback period. The solar fraction reaches up to 0.89 for hot and dry climate (Ahmedabad), 0.95 for moderate climate (Bangalore), 0.84 for warm and humid climate (Chennai) and 0.88 for composite climate (Delhi). It is lowest for the warm and humid climate due to highest annual cooling demand and it is highest for the moderate climate because of the lowest annual cooling demand and higher cost of VRF than PTAC.