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Suppression of natural convection in a thermoacoustic pulse tube refrigerator
Han JQ(韩君庆); Liu QS(刘秋生); Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Source PublicationCHINESE PHYSICS LETTERS
2013-05-01
Volume30Issue:5Pages:054301/1-054301/4
ISSN0256-307X
AbstractThe 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.
KeywordThermoacoustic Engines Thermoacoustic Pulse Tube Refrigerators Gravity Efficiency Of Thermoacoustic Engines Natural Convection Shape Of The Pulse Tube
Subject Area微重力流体力学
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Indexed BySCI ; CSCD
Language英语
WOS IDWOS:000319436700026
Funding OrganizationNational Natural Science Foundation of China [50890182, 11072249]
DepartmentNML流动稳定性与复杂流动
ClassificationQ3
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47362
Collection国家微重力实验室
Corresponding AuthorLiu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Han JQ,Liu QS,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,&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.
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