干旱区生态环境知识资源中心(Arid): Thermodynamic and exergy analysis of a S-CO2 Brayton cycle with various of cooling modes

Arid

DOI	10.1016/j.enconman.2020.113110
	Thermodynamic and exergy analysis of a S-CO2 Brayton cycle with various of cooling modes
	Hu, Hemin; Jiang, Yuyan; Guo, Chaohong; Liang, Shiqiang
通讯作者	Jiang, YY
来源期刊	ENERGY CONVERSION AND MANAGEMENT
ISSN	0196-8904
EISSN	1879-2227
出版年	2020
卷号	220
英文摘要	The thermal performance of S-CO2 Brayton cycle is deeply affected by the cooling mode as well as the meteorological and hydrologic conditions. We proposed the three different cooling modes, wet cooling system (WCS), dry cooling system (DCS) and hybrid cooling system (HCS), to the S-CO2 Brayton cycle, and its thermodynamic model was established adopting Ebsilon code. From the viewpoints of both energy and exergy, the efficiencies of cycles with WCS, DCS and HCS as well as the exergy loss distribution of component were analyzed, under full and partial load conditions. Then the influences of changeable meteorological parameters on the cycle performance and the corresponding thermodynamic parameters were studied. Results show the generation efficiency of cycle with DCS is highest, followed by that of cycle with HCS and WCS, and the corresponding supply efficiency of cycle with the three cooling modes are in reverse order. The thermal performance of S-CO2 Brayton cycle gradually deteriorates, as the ambient temperature increases (WCS, HCS, and DCS) or relative humidity decreases (WCS and HCS). HCS shows excellent water saving capacity (variation range of water saving ratio is 59.08%similar to 95.56%), and its water saving effect is more obvious, as ambient temperature decreases and relative humidity increases. Meanwhile, HCS brings equivalent cycle thermal efficiency to WCS, which is recommended for the S-CO2 Brayton cycle in the water arid regions. The present research may lay a foundation for the water cooling system design and the whole cycle operation optimization.
英文关键词	S-CO2 Brayton cycle Hybrid cooling system Thermodynamic characteristics Water cooling system Exergy efficiency
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000563962500006
WOS关键词	SUPERCRITICAL CO2 POWER ; PERFORMANCE ANALYSIS ; COMBINED HEAT ; DESIGN ; ENERGY ; PLANTS ; TEMPERATURE ; SYSTEM
WOS类目	Thermodynamics ; Energy & Fuels ; Mechanics
WOS研究方向	Thermodynamics ; Energy & Fuels ; Mechanics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325894
作者单位	[Hu, Hemin; Jiang, Yuyan; Guo, Chaohong; Liang, Shiqiang] Chinese Acad Sci, Inst Engn Thermophys, 11 Beisihuanxi Rd, Beijing 100190, Peoples R China; [Jiang, Yuyan; Guo, Chaohong; Liang, Shiqiang] Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China; [Jiang, Yuyan; Liang, Shiqiang] Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116000, Peoples R China
推荐引用方式 GB/T 7714	Hu, Hemin,Jiang, Yuyan,Guo, Chaohong,et al. Thermodynamic and exergy analysis of a S-CO2 Brayton cycle with various of cooling modes[J],2020,220.
APA	Hu, Hemin,Jiang, Yuyan,Guo, Chaohong,&Liang, Shiqiang.(2020).Thermodynamic and exergy analysis of a S-CO2 Brayton cycle with various of cooling modes.ENERGY CONVERSION AND MANAGEMENT,220.
MLA	Hu, Hemin,et al."Thermodynamic and exergy analysis of a S-CO2 Brayton cycle with various of cooling modes".ENERGY CONVERSION AND MANAGEMENT 220(2020).