Waste heat energy utilization in refrigeration and air-conditioning

This paper represents the utilization of wastage of heat energy from Refrigeration and air-conditioning, thereby saving energy. Generally in refrigeration system waste heat available at condenser unit, so we have used that available waste heat for heating of water. For making this system multifunctional, flexible and economical Condensing coil is immersed in water to be heated and a part of cooling coil 1^st passed through filled water tank in which water is to be cooled and then remaining coil is utilized for cooling of air so that desired space to be cooled. Hence here cooling of air, water and heating of water all the three process is done simultaneously in a single unit . For this an experimental setup is designed and fabricated in the hydraulic machine lab of BIT sindri, Dhanbad and various measuring parameter were recorded through different instruments. The COP of system, Capacity of water heater and cooling capacity of room air cooler here calculated is 4.03, 1.51, 3.0034 TR respectively, which is within permissible range.