A Review on Utilization of Waste Heat from a Refrigerator

Refrigerators and air conditioners take in electricity to extract heat from orange juice and ice cream and sweltering living rooms. The energy expelled in the form of waste heat has a lower utility than the original energy source. The sum of the heat extracted plus the work that went into the cooling process is discharged in the form of waste heat, and there must be a temperature difference between the machine and the ambient air in order to drive that heat out. As this heat from a refrigerator is dissipated out in the atmosphere, the efficiency of the system reduces. The aim is to utilize the dissipated heat for some other purposes and increase overall efficiency. The input and the output of energy are considerably balanced. The project refers to a new and improved dual temperature refrigeration unit. The model contains two compartments i.e. hot and cold. The hot compartment is used to keep the food warm and cool compartment is used for the purpose of water cooling.