为评价煤浆运输系统的总能量效率，本文提出一个综合计算方法。

A comprehensive computational procedure is developed and presented jn this article for evaluating the total energy efficiency of a coal slurry transport system.

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试验结果表明：虽然改装机的总能量效率偏低，但内燃机使用压缩空气作动力是可行的。

All the experiments indicate that compressed air power for vehicle is feasible although the total energy efficiency of this air powered engine is a little small.

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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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