两级脉冲管制冷机穿梭和泵气热损失计算分析

SHUTTLE LOSS AND PUMPING GAS LOSS OF TWO-STAGE PULSE TUBE REFRIGERATOR

脉冲管制冷机以空管取代了G-M和斯特林型制冷机中的冷端活塞,分析了由这种特点和交变流动引起的两级脉冲管制冷机的穿梭热损失和泵气热损失,以及损失的来源,并进行了详细的定量计算。

The unique feature of the pulse tube refrigerator is of using a blank thin\|wall tube replacing the cold piston inside the G\|M and Stirling refrigerators. The shuttle loss and pumping gas loss of two\|stage pulse tube refrigerators originating from the empty tube under oscillating flow conditions are analyzed. The origin of the two losses is explained and the quantitative values for both losses are calculated in detail.\;