Design analysis of supercritical carbon dioxide recuperator

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	Design analysis of supercritical carbon dioxide recuperator
	Guo, Jiangfeng
刊名	APPLIED ENERGY
	2016-02-15
卷号	164 页码:21-27
关键词	Heat exchanger Supercritical carbon dioxide (S-CO2) Effectiveness Entransy dissipation number Heat transfer Heat capacity rate ratio
英文摘要	The segmental design method is employed to accurately capture the drastic variations of properties in the supercritical carbon dioxide (S-CO2) recuperator. The local heat capacity flow rates of both fluids have drastic changes in sub-heat exchangers even the mass flow rates of both fluids remain unchanged. When the heat duty is given, the local heat conductance, local temperature difference, local effectiveness and local entransy dissipation number have extremums, which appear in the vicinity of the heat capacity rate ratio is one. The heat transfer performance of recuperator improves at the expense of heat conductance. When the total heat conductance is fixed, there exist the maximum local heat flux rates, and the local effectiveness tends to be constant after the local heat capacity rate ratio reaches one, the local entransy dissipation number has the relatively coherent performance behavior in the sub-heat exchangers. The local heat capacity rate ratio has crucial influences on the heat transfer performance of recuperator, and the design parameters must be considered carefully in the design of S-CO2 recuperator. (C) 2015 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Energy & Fuels ; Engineering, Chemical
研究领域[WOS]	Energy & Fuels ; Engineering
关键词[WOS]	ENTRANSY DISSIPATION THEORY ; CIRCUIT HEAT-EXCHANGER ; COOLED FAST-REACTOR ; CO2 BRAYTON CYCLES ; POWER CYCLE ; OPTIMIZATION ; PERFORMANCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000372379700003
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/112443]
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	Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Guo, Jiangfeng. Design analysis of supercritical carbon dioxide recuperator[J]. APPLIED ENERGY,2016,164:21-27.
APA	Guo, Jiangfeng.(2016).Design analysis of supercritical carbon dioxide recuperator.APPLIED ENERGY,164,21-27.
MLA	Guo, Jiangfeng."Design analysis of supercritical carbon dioxide recuperator".APPLIED ENERGY 164(2016):21-27.