Abstract:
Central air conditioning is one type of refrigeration machine that is widely used in
large or multi-storey buildings such as offices, hotels or shopping malls. Waste heat energy from
the condenser of refrigeration machine is generally rejected as useless energy. Actually, this
thermal energy can be utilized for energy-efficient water heater, as a source of energy obtained for
free from the condenser waste heat energy. To determine the wasted heat energy that can be
used for the water heater, it is necessary to count the heating potential. The calculation and
analysis of data obtained showed that the energy potential of waste heat in the condenser that can
be used as a water heater is equal to 228.318 kW with a maximum condenser inlet temperature is
57.78 °C.
