The heat transfer mechanism study of three-tank latent heat storage system based on entransy theory

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	The heat transfer mechanism study of three-tank latent heat storage system based on entransy theory
	Guo, Jiangfeng; Huai, Xiulan
刊名	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2016-06-01
卷号	97 页码:191-200
关键词	Three-tank latent heat storage Heat transfer Entransy dissipation number Exergy efficiency Solar energy Heat exchanger
英文摘要	A three-tank latent heat storage system in which liquid lead-bismuth eutectic alloy (LBE) is used as sensible heat storage medium, and sodium nitrate is selected as the phase change material (PCM), is proposed in the present work. The performance of thermal storage system depends chiefly upon the heat transfer performance at superheated steam stage, and the mass flow rate of LBE can be adjustable to accommodate the specific heat change of water/steam. There exists an optimal mass flow rate ratio to maximize the performance of storage system. Generally, the more uniform the temperature difference distribution is, the higher the thermal performance of the storage system. The optimal mass flow rate of liquid LBE appears under constant mass flow rate ratio condition, in which the entransy and exergy rises of steam reach the maximum. The increasing number of transfer units at superheated steam stage improves the thermal storage performance monotonously. The exergy efficiency of this storage system runs at more than 80% through proper parameters setting. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Engineering ; Mechanics
关键词[WOS]	THERMAL-ENERGY STORAGE ; DIRECT STEAM-GENERATION ; DISSIPATION EXTREMUM PRINCIPLE ; BRAYTON CYCLE SYSTEM ; TROUGH POWER-PLANTS ; OPTIMIZATION DESIGN ; EXCHANGER NETWORKS ; THERMODYNAMIC ANALYSIS ; BALANCE EQUATION ; WORK CONVERSION
收录类别	SCI
语种	英语
WOS记录号	WOS:000374616900018
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/112505]
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,Huai, Xiulan. The heat transfer mechanism study of three-tank latent heat storage system based on entransy theory[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2016,97:191-200.
APA	Guo, Jiangfeng,&Huai, Xiulan.(2016).The heat transfer mechanism study of three-tank latent heat storage system based on entransy theory.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,97,191-200.
MLA	Guo, Jiangfeng,et al."The heat transfer mechanism study of three-tank latent heat storage system based on entransy theory".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 97(2016):191-200.