Acknowledge the concept of Exergy and its calculation.

了解火用的概念及其计算。

Power plant and air separation system utilize the LNG cold exergy.

冷藏、空调和制干冰利用了LNG的冷量。

With help of this package, the enthalpy - exergy diagram of water and steam is drawn.

在此软件包的基础之上绘制了水和水蒸汽的焓火用图。

The exergy loss of primary steam after temperature and pressure reduction is calculated.

计算了一次蒸汽经减温减压后的火用损失。

The results show, when heating, the primary energy ratio of GEHP is 1.76 and exergy efficiency is 29.12%.

结果表明：燃气机热泵在供热时的一次能源利用率为1.76，(火用)效率为29.12%。