The waste heat of compressor is used to heat water, through a heat exchanger and in the process of removing heat, the life of compressor is extended and its efficiency goes up.
Thus the power consumption also goes down because compressor has to work less.
Profile: Dhruv Patel
Institute: Gandhinagar Institute of Technology, Gandhinagar
Through this modified design daily 100 liters of lukewarm hot water can be produced while the cooling capacity of the refrigerator is increased by about 20 per cent.
This may also reduce the consumption of electricity.
The lukewarm water thus generated can be used cleaning kitchen utensils, washing clothes, bathing etc.
Waste heat from the fridge is retained in a closed environment (insulated water tank) rather than released into the home.