Suppression of natural convection in a thermoacoustic pulse tube refrigerator

	Suppression of natural convection in a thermoacoustic pulse tube refrigerator
	Han JQ(韩君庆); Liu QS(刘秋生)
刊名	CHINESE PHYSICS LETTERS
	2013-05-01
通讯作者邮箱	liu@imech.ac.cn
卷号	30 期号:5 页码:054301/1-054301/4
关键词	thermoacoustic engines thermoacoustic pulse tube refrigerators gravity efficiency of thermoacoustic engines natural convection shape of the pulse tube
ISSN号	0256-307X
通讯作者	Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
产权排序	[Han Jun-Qing; Liu Qiu-Sheng] Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China
中文摘要	The effects of gravity on the efficiency of thermoacoustic engines are investigated theoretically and experimentally, especially for thermoacoustic pulse tube refrigerators. The significant effects of gravity are found to be due to the presence of natural convection in the thermoacoustic pulse tube when the hot side of the tube is lower than the cold side. This kind of natural convection influences and reduces the efficiency of the thermoacoustic working system. Thus, how to suppress this natural convection becomes important for increasing the efficiency of thermoacoustic engines. Unlike the method of inserting a silk screen in a pulse tube, the present study uses a numerical simulation method to research the natural convection in pulse tubes, and we try to change the shape of the pulse tube to suppress this convection.
学科主题	微重力流体力学
分类号	Q3
收录类别	SCI ; CSCD
资助信息	National Natural Science Foundation of China [50890182, 11072249]
原文出处	http://cpl.iphy.ac.cn/EN/Y2013/V30/I5/054301
语种	英语
WOS记录号	WOS:000319436700026
公开日期	2013-08-21
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47362]
专题	力学研究所_国家微重力实验室
推荐引用方式 GB/T 7714	Han JQ,Liu QS. Suppression of natural convection in a thermoacoustic pulse tube refrigerator[J]. CHINESE PHYSICS LETTERS,2013,30(5):054301/1-054301/4.
APA	Han JQ,&Liu QS.(2013).Suppression of natural convection in a thermoacoustic pulse tube refrigerator.CHINESE PHYSICS LETTERS,30(5),054301/1-054301/4.
MLA	Han JQ,et al."Suppression of natural convection in a thermoacoustic pulse tube refrigerator".CHINESE PHYSICS LETTERS 30.5(2013):054301/1-054301/4.