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脉冲管制冷机内部工质气体热力学循环是理解脉冲管制冷机制冷机理的一个重要方面。本文采用拉格朗日方法对制冷机蓄冷器内部气体微团热力学循环进行了数值统计分析,结果表明,对于变频率和充气压力工况,蓄冷器内单位质量气体单位时间内循环换热量和制冷机能达到的最低制冷温度紧密相关。

Thermodynamic cycles are very important and useful for understanding the mechanism ot the pulse tube refrigerator. In this paper, two-dimensional axi-symmetric simulations of an inertance tube pulse tube refrigerator are conducted, and thermodynamic cycles of the gas parcels oscillating in regenerator are studied and analyzed in the Lagrangian's regime. The results show that the lowest temperature of the system is possibly decided by the amount of heat pumping by thermal cycles under different frequencies and charge pressure cases.

参考文献

[1] N. Jiang;U. Lindemann;F. Giebeler .A ~3He pulse tube cooler operating down to 1.3 K[J].Cryogenics,2004(11):809-816.
[2] Liang J. .THERMODYNAMIC CYCLES IN OSCILLATING FLOW REGENERATORS[J].Journal of Applied Physics,1997(9):4159-4165.
[3] 罗二仓,戴巍,吴张华,吴剑峰.交变流动热机的介观热力循环理论--第一部分 制冷机回热器的介观热力循环模型及分析[J].低温工程,2004(01):1-11.
[4] Ling Chen;Yu Zhang;Ercang Luo;Teng Li;Xiaolin Wei .CFD analysis of thermodynamic cycles in a pulse tube refrigerator[J].Cryogenics,2010(11/12):743-749.
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