It is illustrated that discharge temperature of gas cooler, efficiency of expander and degree of superheat at the inlet of compressor can exert more influence on the optimum high pressure.
结果表明，气体冷却器出口温度、过热度和膨胀机效率对最优高压压力的影响较为明显。
2
Electron vacuum gage can be installed at the gasinlet so as to accurately meter and control the vacuum degree of the pumped container.