脉冲管制冷机第三种直流敏感性实验研究

Experimental Sensitivity Study of the Third Type of Streaming in Pulse Tube Refrigerator

直流是脉冲管制冷机中重要的机理性问题。本文介绍了脉冲管制冷机第三种直流效应的最新理论研究结果,深入分析了第三种直流效应的产生机理和影响因素。结合制冷机系统的流动和热力学非对称性,通过实验研究了脉冲管制冷机第三种直流效应对几何结构、冷头温度、频率、压力等参数的敏感性。

Streaming is a crucial problem in pulse tube refrigerator.The new theoretical research of the third type of streaming in pulse tube refrigerator is introduced.The generation mechanism and influencing factors are deeply analyzed combined with hydrodynamic and thermodynamic asymmetry.The experimental sensitivity study of the third type of streaming is done via geometry structure,cold head temperature,frequency and pressure.