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Analysis of inertance tube in the pulse tube refrigeration

机译：脉冲管制冷中惯性管的分析

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摘要

Refrigeration effect in pulse tube coolers can be explained in terms of phase shift between oscillations of pressure and mass flow rate at the cold end of the pulse tube. In this paper a linear ordinary differential equation of the second order with variable coefficient has been developed to describe the time-dependent phase shifting effect due to variable frictional coefficient. The comparison between integral average value of the transient parameter on a cycle and the experimental and published data has been conducted. It reveals that different inertance tubes have their own optimal working conditions, and the inertance tube with small internal diameter is more suitable to work under high frequency conditions.
机译：脉冲管冷却器中的制冷效果可以用脉冲振荡冷端压力波动与质量流率之间的相移来解释。本文开发了具有可变系数的二阶线性常微分方程，以描述由于可变摩擦系数而引起的时变相移效应。进行了周期内瞬态参数的积分平均值与实验数据和公开数据之间的比较。结果表明，不同的惯性管有自己的最佳工作条件，内径小的惯性管更适合在高频条件下工作。

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