一种逼近卡诺制冷效率的级联脉管法及其两级验证

doi:10.11949/j.issn.0438-1157.20161428

化工学报 ›› 2016, Vol. 67 ›› Issue (S2): 269-274.DOI: 10.11949/j.issn.0438-1157.20161428

一种逼近卡诺制冷效率的级联脉管法及其两级验证

王龙一^1,2, 甘智华^1,2, 吴镁^1,2, 孙潇^1,2, 宋彦儒^1,2

1. 浙江大学制冷与低温研究所, 浙江杭州 310027;
2. 浙江省制冷与低温技术重点实验室, 浙江杭州 310027

收稿日期:2016-08-06 修回日期:2016-09-30 出版日期:2016-12-30 发布日期:2016-12-30
通讯作者: 甘智华
基金资助:
国家自然科学基金项目（51376157）；教育部高校博士点基金项目（20130101110098）。

Cascade pulse tube method approaching Carnot refrigeration efficiency and its two stage verification

WANG Longyi^1,2, GAN Zhihua^1,2, WU Mei^1,2, SUN Xiao^1,2, SONG Yanru^1,2

1. Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, Zhejiang, China;
2. Key Laboratory of Refrigeration & Cryogenic Technology of Zhejiang Province, Hangzhou 310027, Zhejiang, China

Received:2016-08-06 Revised:2016-09-30 Online:2016-12-30 Published:2016-12-30
Supported by:
supported by the National Natural Science Foundation of China (51376157)and Specialized Research Fund for the Doctoral Program of Higher Education of China (20130101110098).

摘要/Abstract

摘要：

理论分析表明，通过多级级联脉管组成的新结构，其理论制冷效率有望达到卡诺效率。给出了这样一种具有传输管声功回收装置的级联型脉管制冷机，传输管能将主级制冷机脉管热端压力波领先质量流的相位扭转为质量流领先压力波，同时实现能量最大化的传输，用以驱动次级制冷机。实验结果表明，两级级联型脉管制冷机在233 K工作时，制冷效率比单级结构提高了33%。

关键词: 脉管制冷机, 热力学, 级联, 传输管, 回收, 数值模拟, 实验验证

Abstract:

Theoretical analysis shows that, for the cascade pulse tube configuration, its ideal cooling efficiency could possibly approach Carnot efficiency.A cascade pulse tube cooler with a built-in transmission tube between stages for energy recovery is suggested in this paper, the transmission tube is able to reverse the phase relation between mass flow and pressure wave and to transfer the acoustic power as much as possible to drive a secondary cooler.Theoretical analysis of an ideal transmission tube is carried out, which shows that it is possible to recover the acoustic power from the former stage to drive a secondary stage by choosing proper size of the tube.To verify this idea, a two stage cascade pulse tube cooler was designed, fabricated and tested.Experimental results show that the efficiency can be improved by 33% when the machine works at 233 K.

Key words: pulse tube cooler, thermodynamics, cascade, transmission tube, recovery, numerical simulation, experimental validation

中图分类号:

TB61⁺8

王龙一, 甘智华, 吴镁, 孙潇, 宋彦儒. 一种逼近卡诺制冷效率的级联脉管法及其两级验证[J]. 化工学报, 2016, 67(S2): 269-274.

WANG Longyi, GAN Zhihua, WU Mei, SUN Xiao, SONG Yanru. Cascade pulse tube method approaching Carnot refrigeration efficiency and its two stage verification[J]. CIESC Journal, 2016, 67(S2): 269-274.

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一种逼近卡诺制冷效率的级联脉管法及其两级验证

Cascade pulse tube method approaching Carnot refrigeration efficiency and its two stage verification

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