Flow and heat transfer characteristics of supercritical CO2 in a natural   circulation loop

doi:10.1016/j.ijthermalsci.2012.02.023

CORC > 北京大学 > 工学院

	Flow and heat transfer characteristics of supercritical CO2 in a natural circulation loop
	Cao, Yuhui ; Zhang, Xin-Rong
刊名	international journal of thermal sciences
	2012
关键词	Carbon dioxide Supercritical fluid Heat transfer Natural circulation loop CARBON-DIOXIDE PERIODIC OSCILLATION CONVECTION SYSTEMS TUBE PERFORMANCE INSTABILITY EXCHANGERS CYCLE
DOI	10.1016/j.ijthermalsci.2012.02.023
英文摘要	Owing to the environmentally benign nature and the special property variation at supercritical pressure, CO2 attracts considerable attention in both science and engineering. The CO2 utilization is regarded as a sustainable way in long term and has become an important global issue. In the present study, a two-dimensional numerical model is used to study the convective flow and heat transfer characteristics of supercritical CO2 natural circulation in a uniform diameter rectangular loop. Parametric influences of the heat sink temperature, the inclination angle of the loop and the temperature difference on the convection motion and heat transfer performance have been studied. For a given temperature difference, the heat sink temperature has great effect on both flow and heat transfer performance. Increasing the inclination angle decelerates the convective flow and heat transfer processes due to the gradual decrease in buoyancy. With the increase of the temperature difference, both the flow rate and heat transfer performance are found to initially increase, reach a peak, and then decrease gradually. The underlying physics is explored. (C) 2012 Elsevier Masson SAS. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000305104000007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Thermodynamics; Engineering, Mechanical; SCI(E); EI; 10; ARTICLE; 52-60; 58
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/232601]
专题	工学院
推荐引用方式 GB/T 7714	Cao, Yuhui,Zhang, Xin-Rong. Flow and heat transfer characteristics of supercritical CO2 in a natural circulation loop[J]. international journal of thermal sciences,2012.
APA	Cao, Yuhui,&Zhang, Xin-Rong.(2012).Flow and heat transfer characteristics of supercritical CO2 in a natural circulation loop.international journal of thermal sciences.
MLA	Cao, Yuhui,et al."Flow and heat transfer characteristics of supercritical CO2 in a natural circulation loop".international journal of thermal sciences (2012).