Control of DC gas flow in a single-stage double-inlet pulse tube cooler

被引：42

作者：

Wang, C ^{[1
]}

Thummes, G ^{[1
]}

Heiden, C ^{[1
]}

机构：

[1] Univ Giessen, Inst Phys Appl, D-35392 Giessen, Germany

来源：

CRYOGENICS | 1998年 / 38卷 / 08期

关键词：

pulse tube cooler; DC gas flow; coefficient of performance;

D O I：

10.1016/S0011-2275(98)00070-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The use of double-inlet mode in the pulse tube cooler opens up a possibility of DC gas flow circulating around the regenerator and pulse tube. Numerical analysis shows that effects of DC flow in a single-stage pulse tube cooler are different in some aspects from that in a 4 K purse tube cooler. For highest cooler efficiency, DC flow should be compensated to a small value, i.e. DC flow over average AC flow at regenerator inlet should be in the range -0.0013 to +0.00016. Dual valves with reversed asymmetric geometries were used for the double-inlet bypass to control the DC flow in this paper. The experiment, performed in a single-stage double-inlet pulse tube cooler, verified that the cooler performance can be significantly improved by precisely controlling the DC flow. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：843 / 847

页数：5

共 10 条

[1]

[Anonymous], [No title captured]

[2]

BURT WW, 1997, CRYOCOOLERS, V9, P173

[3] Dynamic experimental investigation of a multi-bypass pulse tube refrigerator [J].