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一、绝热膨胀-放气回热式制冷循环 本文提出并讨论一种新的闭式气体膨胀循环——绝热膨胀-放气回热式制冷循环,或者称为改进型Gifford-McMahon(G-M)循环.G-M循环(见图1)广泛应用于低温制冷和液化装置中.G-M制冷机的膨胀机采用负荷很小的推移活塞,运行频率低,气阀
I. Adiabatic Expansion - Deflate Regeneration Refrigeration Cycle A new closed-type gas expansion cycle-adiabatic expansion-deflation refrigeration cycle is proposed and discussed, or referred to as a modified Gifford-McMahon (GM) cycle .GM cycle (see Figure 1) is widely used in low temperature refrigeration and liquefaction plant .GM refrigerator expander using a small load piston, the operating frequency is low, the valve