干旱区生态环境知识资源中心(Arid): Research on a Coupled Total-Flow and Single-Flash (TF-SF) System for Power and Freshwater Generation from Geothermal Source

Arid

DOI	10.3390/app10082689
	Research on a Coupled Total-Flow and Single-Flash (TF-SF) System for Power and Freshwater Generation from Geothermal Source
	Yu, Guopeng; Yu, Zhibin
通讯作者	Yu, Zhibin
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2020
卷号	10 期号:8
英文摘要	In response to the twin development challenges of energy shortage and water-scarcity in worldwide arid to semi-arid regions with geothermal resources, a new combined power and freshwater generation system is proposed for geothermal energy utilization. In this system, a total-flow turbine (TF) is employed to be coupled with the traditional single-flash (SF) system and thereafter the coupled TF-SF system is investigated in this work. In addition to power generation, the exhaust steam from turbines are recovered to produce freshwater through condensation. Based on the novel designed system, the production of both power and water are studied under variable wellhead conditions, including variable wellhead pressures, temperatures, mass flowrates, and vapor qualities. The temperature of the separating point at which the total-flow expansion ends and the steam expansion starts is studied for optimal system output. In addition, the efficiency effects of the total-flow turbine on performance of the combined system is also investigated. The power generation comparison shows good power potential of the proposed TF-SF combined system. An effective total-flow turbine with an average efficiency of 65% can lead to an optimal power capacity, exceeding the traditional single-flash (SF) system by 23.7%. Moreover, more than 1/3 of total wellhead discharge can be recovered as desalinated freshwater by the naturally equipped condensation process of the power plant, showing extra benefit from geothermal energy utilization.
英文关键词	geothermal energy total-flow and single-flash (TF-SF) system combine power and freshwater generation parametric distributions system performance and comparison
类型	Article
语种	英语
国家	Scotland
开放获取类型	gold, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000533352100053
WOS关键词	REINJECTION ; DESALINATION ; PERFORMANCE ; TURBINE ; FIELDS
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318841
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. Research on a Coupled Total-Flow and Single-Flash (TF-SF) System for Power and Freshwater Generation from Geothermal Source[J],2020,10(8).
APA	Yu, Guopeng,&Yu, Zhibin.(2020).Research on a Coupled Total-Flow and Single-Flash (TF-SF) System for Power and Freshwater Generation from Geothermal Source.APPLIED SCIENCES-BASEL,10(8).
MLA	Yu, Guopeng,et al."Research on a Coupled Total-Flow and Single-Flash (TF-SF) System for Power and Freshwater Generation from Geothermal Source".APPLIED SCIENCES-BASEL 10.8(2020).