干旱区生态环境知识资源中心(Arid): Investigation of Geothermally Sourced Combined Power and Freshwater Generation Systems

Arid

DOI	10.1016/j.egypro.2019.01.527
	Investigation of Geothermally Sourced Combined Power and Freshwater Generation Systems
	Yu, Guopeng; Yu, Zhibin
通讯作者	Yu, Zhibin
会议名称	10th International Conference on Applied Energy (ICAE)
会议日期	AUG 22-25, 2018
会议地点	Hong Kong, HONG KONG
英文摘要	To address the concurrent water and energy shortage issues regions where geothermal sources are abundant, three geothermally sourced combined power and freshwater generation technologies are investigated. Two of them are based on traditional power generation systems, including a steam system (SS) and a single flash system (SFS). The other one is a propo sed trilateral flash system (TFS). Instead of focusing solely on their power generation potentials as previous geothermal exploitations did, the condensation process which produces desalinized freshwater is particularly investigated. To obtain a comprehensive evaluation, system performance under various geothermal wellhead conditions have been considered and compared. Results indicate that, for a typical liquid-dominated well, SS has absolute power generating advantage over SFS and TFS under low wellhead pressure and high wellhead vapor quality conditions. However, the TFS shows more stable power-generating and freshwater-generating performance when the wellhead condition varies, especially when the vapor quality gets lower. Efficiency of the total-flow turbine of TFS determines its system power potential. A turbine efficiency of 50% enables TFS to obtain comparable specific power with traditional power systems. Moreover, fresh water generation is a distinct advantage of the TFS, qualifying it a promising choice in remote arid geothermal terrains for both power and freshwater generation. (C) 2019 The Authors. Published by Elsevier Ltd.
英文关键词	Geothermal source Combined power-freshwater generation Trilateral flash system (TFS)
来源出版物	INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
ISSN	1876-6102
出版年	2019
卷号	158
页码	5946-5953
EISBN	*****************
出版者	ELSEVIER SCIENCE BV
类型	Proceedings Paper
语种	英语
国家	Scotland
开放获取类型	gold, Green Accepted
收录类别	CPCI-S
WOS记录号	WOS:000471031706049
WOS关键词	TURBINE
WOS类目	Energy & Fuels
WOS研究方向	Energy & Fuels
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/308140
作者单位	Univ Glasgow, Sch Engn, Glasgow G12 8QQ, Lanark, Scotland
推荐引用方式 GB/T 7714	Yu, Guopeng,Yu, Zhibin. Investigation of Geothermally Sourced Combined Power and Freshwater Generation Systems[C]:ELSEVIER SCIENCE BV,2019:5946-5953.

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