Heat transfer characteristics of supercritical CO2 flow in small-channeled structures

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	Heat transfer characteristics of supercritical CO2 flow in small-channeled structures
	Huai, X.; Koyama, S.
刊名	EXPERIMENTAL HEAT TRANSFER
	2007
卷号	20 期号:1 页码:19-33
关键词	supercritical carbon dioxide heat transfer micro/mini channels
英文摘要	Carbon dioxide (CO2) has been proposed as a "natural refrigerant" for various kinds of refrigeration systems and has attracted increased attention from researchers and engineers all over the world. The heat transfer and flow characteristics of supercritical CO2 in a multi-port extruded aluminum test section, which had ten circular channels with inner diameter of 1.31 mm, were investigated experimentally. The CO2 was cooled with chilled copper blocks attached at the both sides of the test section. Local heat fluxes and temperatures at the outer surface of the test section were measured using 12 heat flux sensors and 24 K-type thermocouples, respectively. The mean temperatures of CO2 at the inlet and outlet of the test section were also measured. The higher heat transfer rates were achieved in the near-critical region, and the system pressure, mass velocity, and temperature of CO2 all were observed having significant effects on the heat transfer. An empirical correlation was then developed for forced convective heat transfer of superctitical CO2 in horizontal micro/mini channels.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Engineering, Mechanical
研究领域[WOS]	Thermodynamics ; Engineering
关键词[WOS]	CARBON-DIOXIDE
收录类别	SCI
语种	英语
WOS记录号	WOS:000243500600002
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106332]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China 2.Kyushu Univ, Inst Mat Chem & Engn, Fukuoka 812, Japan
推荐引用方式 GB/T 7714	Huai, X.,Koyama, S.. Heat transfer characteristics of supercritical CO2 flow in small-channeled structures[J]. EXPERIMENTAL HEAT TRANSFER,2007,20(1):19-33.
APA	Huai, X.,&Koyama, S..(2007).Heat transfer characteristics of supercritical CO2 flow in small-channeled structures.EXPERIMENTAL HEAT TRANSFER,20(1),19-33.
MLA	Huai, X.,et al."Heat transfer characteristics of supercritical CO2 flow in small-channeled structures".EXPERIMENTAL HEAT TRANSFER 20.1(2007):19-33.