0421 Development of Heat Pump Vending Machine Using HC Refrigerant
Details
The combined system with a cooling cycle and a heat pump cycle was developed for vending machine. Isobutane (R600a) is used as a working fluid for both cycles because of its high efficiency and lower cost. The combined outer heat exchanger can reuse the waste heat of the cooling cycle for evaporator of the heat pump cycle and it can control dew drop in case of heating right compartment. The energy consumption is reduced by 28% compared to that of the conventional vending machines.
