制冷学报2011，Vol.32Issue(3)：6-14,28,10.DOI:10.3969/j.issn.0253-4339.2011.03.006
回热式低温制冷机用回热器结构研究综述
Review of Investigation on Regenerator for Regenerative Cryocoolers
摘要
Abstract
Regenerator is a key part of regenerative cryocoolers, and it gives predominant contribution to the performance of cryocoolers. In this paper, the recent development of regenerator in regenerative cryocoolers is described. Stacked mesh screens, parallel wires, sphere beds, parallel plates, random wire, mesh screens & packed spheres mixed packing are the commonly used configurations for regenerators, and the characters of different regenerators are discussed separately. It is suggested that the regenerator should be assessed by regenerator thermal efficiency η, specific surface area a, flow maldistribution factor Fm, flow friction factor f regenerator matrix geometric factorΓ, axial material heat conduction factor Ck, and ratio of length and diameter LID. And the ways of optimizing the regenerator geometries are analyzed. Finally, the challenge and problems of optimizing the matrix geometries are previewed.关键词
热工学/回热器/回热效率/流阻阻力系数/轴向导热损失Key words
Pyrology/Regenerator/Regenerator thermal efficiency/Flow friction factor/Axial conduction loss分类
通用工业技术引用本文复制引用
陈曦,郭永飞,张华,吴亦农..回热式低温制冷机用回热器结构研究综述[J].制冷学报,2011,32(3):6-14,28,10.基金项目
国家自然科学基金(50906054)、高等学校博士学科点专项科研基金(20093120120006)资助项目.本文受上海市教育委员会重点学科建设项目(J50502)和上海市教育委员会科研创新项目(10YZ96)资助. （50906054）
