| 摘要 |
An air conditioning system is mainly provided with comprises an evaporator, a compressor, a condenser, a valve and an energy recovery device. The compressor is fluidly connected to the evaporator to compress low-pressure refrigerant exiting the evaporator to high-pressure refrigerant. The condenser is fluidly connected to the compressor to receive the high pressure refrigerant and dissipate heat therefrom. The valve controls flow of high pressure refrigerant exiting the condenser. The energy recovery device includes a movable expander having an inlet and an outlet. The inlet is fluidly connected to the valve to receive the high pressure refrigerant. The movable expander phase changes the refrigerant from high pressure refrigerant at the inlet to low pressure refrigerant at the outlet. The energy recovery device extracts work from movement of the movable expander due to the phase change of the refrigerant from the high pressure refrigerant to the low pressure refrigerant.
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