Solar-Enhanced Air-Cooled Heat Exchangers for Geothermal Power Plants

doi:10.3390/en10101676

	Solar-Enhanced Air-Cooled Heat Exchangers for Geothermal Power Plants
	Hooman, Kamel 1; Huang, Xiaoxue 2; Jiang, Fangming2
刊名	ENERGIES
	2017-10-01
卷号	10 期号:10
关键词	Heat Exchangers Air-cooled Condensers Geothermal Cooling Tower
ISSN号	1996-1073
DOI	10.3390/en10101676
文献子类	Article
英文摘要	This paper focuses on the optimization of a Solar-Enhanced Natural-Draft Dry-Cooling Tower (SENDDCT), originally designed by the Queensland Geothermal Energy Centre of Excellence (QGECE), as the air-cooled condenser of a geothermal power plant. The conventional method of heat transfer augmentation through fin-assisted area extension is compared with a metal foam-wrapped tube bundle. Both lead to heat-transfer enhancement, albeit at the expense of a higher pressure drop when compared to the bare tube bundle as our reference case. An optimal design is obtained through the use of a simplified analytical model and existing correlations by maximizing the heat transfer rate with a minimum pressure drop goal as the constraint. Sensitivity analysis was conducted to investigate the effect of sunroof diameter, as well as tube bundle layouts and tube spacing, on the overall performance of the system. Aiming to minimize the flow and thermal resistances for a SENDDCT, an optimum design is presented for an existing tower to be equipped with solar panels to afterheat the air leaving the heat exchanger bundles, which are arranged vertically around the tower skirt. Finally, correlations are proposed to predict the total pressure drop and heat transfer of the extended surfaces considered here.
WOS关键词	DRY COOLING-TOWER ; PERFORMANCE ; CROSSWIND
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000414578400231
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/16500]
专题	中国科学院广州能源研究所
通讯作者	Hooman, Kamel
作者单位	1.Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Adv Energy Syst,Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Hooman, Kamel,Huang, Xiaoxue,Jiang, Fangming. Solar-Enhanced Air-Cooled Heat Exchangers for Geothermal Power Plants[J]. ENERGIES,2017,10(10).
APA	Hooman, Kamel,Huang, Xiaoxue,&Jiang, Fangming.(2017).Solar-Enhanced Air-Cooled Heat Exchangers for Geothermal Power Plants.ENERGIES,10(10).
MLA	Hooman, Kamel,et al."Solar-Enhanced Air-Cooled Heat Exchangers for Geothermal Power Plants".ENERGIES 10.10(2017).