Numerical simulation of a GM-type pulse tube cryocooler system: Part II. Rotary valve and cold head
Numerical simulation of a GM-type pulse tube cryocooler system: Part II. Rotary valve and cold head
复制标题
GM 型脉冲管制冷机系统的数值模拟：第二部分。
DOI：
10.1016/j.cryogenics.2016.11.006
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发表时间：
2017-01-01
期刊：
影响因子：
2.1
通讯作者：
Gan, Zhihua
中科院分区：
文献类型：
--
作者：
Liu, Dongli;Dietrich, Marc;Gan, Zhihua
提出了一种简化的旋转阀模型。该模型被用于GM型脉管制冷机(GMPTC)的完整模拟，包括压缩机、旋转阀和冷头。通过将模拟结果与现有GMPTC系统的实验数据进行比较，对模型进行了验证，包括压力波、制冷功率和COP。讨论了压缩机、旋转阀和冷头产生的火用损失。本文针对某压气机和旋转阀的特性，提出了一种可用于分析和优化GMPTC冷头的仿真方法。(C)2016爱思唯尔有限公司。保留所有权利。
A simplified model to characterise a rotary valve is proposed. This model is used inside a complete GM type pulse tube cryocooler (GMPTC) simulation including the compressor, rotary valve and cold head. The verification of the model is presented including the pressure wave, cooling power and COP by comparing the simulation results to the experimental data of an existing GMPTC system. The exergy losses produced by the compressor, rotary valve and cold head are discussed. This paper is aimed to propose a simulation method which can be applied to analyse and optimise a GMPTC cold head by using the characteristics of a specific compressor and rotary valve. (C) 2016 Elsevier Ltd. All rights reserved.