Experimental and theoretical studies on air humidification by a water spray at elevated pressure

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	Experimental and theoretical studies on air humidification by a water spray at elevated pressure
	Xu, Zhen; Xiao, Yunhan; Wang, Yue
刊名	APPLIED THERMAL ENGINEERING
	2007-10-01
卷号	27 期号:14-15 页码:2549-2558
关键词	humidification droplet spray heat and mass transfer humid air turbine
英文摘要	Humidification of compressed air is important for humid air turbine cycle. In this paper, theoretical and experimental investigations are carried out to analyze and predict the humidification process in spray tower. For predicting the heat and mass transfer in the water droplet-air two-phase flow, a one-dimensional numerical model simulating the conservation of heat and mass of water and humid air was developed. The model considers the effect of droplet motion on the heat and mass transfer. Experimental data were obtained on a pressurized model spray tower at different pressures and water/air ratios, which had been adopted to validate the numerical model. Droplet diameter of the spray was measured and these data were used in the model. Predictions of outlet conditions of air and water for giving input conditions agree well with experimental data, which produces a maximal error of 7.3%. On the basis of the model, distributions of droplet velocity and volumetric heat transfer coefficient over height of the tower are predicted. The effect of droplet diameter on the characteristic performance of spray humidifier is also analyzed in the simulation. (c) 2007 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
收录类别	SCI
语种	英语
WOS记录号	WOS:000247865200023
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106311]
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 100080, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zhen,Xiao, Yunhan,Wang, Yue. Experimental and theoretical studies on air humidification by a water spray at elevated pressure[J]. APPLIED THERMAL ENGINEERING,2007,27(14-15):2549-2558.
APA	Xu, Zhen,Xiao, Yunhan,&Wang, Yue.(2007).Experimental and theoretical studies on air humidification by a water spray at elevated pressure.APPLIED THERMAL ENGINEERING,27(14-15),2549-2558.
MLA	Xu, Zhen,et al."Experimental and theoretical studies on air humidification by a water spray at elevated pressure".APPLIED THERMAL ENGINEERING 27.14-15(2007):2549-2558.