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International Heat Transfer Conference 12

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

Improvements of pulse tube refrigerator revisited: application of field synergy principle

Ya-Ling He
Key Laboratory of Thermo-fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China

Ming Wu
Xi’an Jiaotong University, 28 Xian Ning West Rd., Xi’an 710049, China

Wen-Quan Tao
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xian Jiaotong University, Xian 710049, China

Zhong-Qi Chen
Department of Power Machinery Engineering Xi'an Jiaotong University Xi'an, Shaanxi, The People's Republic of China

DOI: 10.1615/IHTC12.2810
6 pages

Abstract

A novel concept for enhancing convective heat transfer, called field synergy principle, was proposed in 1998. In this paper this principle is extended to the transport process of the pulse tube refrigerator. The essence of several important improvements in the developing process of PTR is revealed by the field synergy principle. In addition, the principle is further used to determine the optimum geometric parameter of PTR, and an optimum length to diameter ratio is found numerically, at which the maximum cooling capacity of the PTR can be obtained.

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