该制冷机的工作特性表明在不变蒸发温度时，制冷机冷量随发动机排气功率变化。
It is concluded that the refrigerating capacity at constant Evaporating temperatures varies with the engine exhaust power output.
在能量转移系统中，应该采用容积膨胀减压方式减少减压环节的可用能损失；合理利用低温排气的冷量火用可以提高气动发动机能量转移系统的总能量效率。
The expander can reduce exergy loss in pressure reducing process, and the utilization of cryogenic exergy of air-powered engine exhaust is useful to improve the total energy efficiency.
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