Performance prediction and cost-effectiveness analysis of a novel natural draft hybrid cooling system for power plants

doi:10.1016/j.apenergy.2020.114555

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	Performance prediction and cost-effectiveness analysis of a novel natural draft hybrid cooling system for power plants
	Wei, Huimin 1; Huang, Xianwei 1; Chen, Lin 1; Yang, Lijun 1; Du, Xiaoze 1,2
刊名	Applied Energy
	2020-03-15
卷号	262
关键词	Cooling Cooling systems Cooling water Cost effectiveness Economic and social effects Electric connectors Iterative methods Mass transfer Thermoelectric equipment Water conservation Water resources Coal-fired power unit Cost effectiveness analysis Heat and mass transfer Hybrid cooling Natural draft dry cooling towers Performance prediction Visible plume Water consumption rate
ISSN号	03062619
DOI	10.1016/j.apenergy.2020.114555
英文摘要	Natural draft dry cooling system (NDDCs) utilizes ambient air as cooling medium and is susceptible the ambient conditions. Natural draft wet cooling system (NDWCs) can provide adequate cooling capacity by consuming large amount of water but forms visible plumes. A novel natural draft hybrid cooling system (NDHCs) which consists of both dry and wet components is proposed in this study as a means to be in conflict with the protection and conservation of water resources. With full consideration of its control equations of flow, heat and mass transfer, an iterative algorithm is developed to predict the performance of NDHCs. Coupled to a practical coal-fired power unit, the annual performances of the three systems, as well as the trade-off of the water consumption rate and saved coal consumption rate are explored. The results indicate that during extreme hot days, NDHCs shows more priority over NDDCs and NDWCs. The annual performance of NDHCs is better than NDDCs and NDWCs due to its parallel connection of air, which brings more air passing through the tower. Compared with NDDCs, the playback period of the modification is only 1 year though there is a slightly underestimation due to the structure difference of tower. Furthermore, NDHCs can avoid plumes and further pollution caused by the plumes effectively, since the saturated/supersaturated air will be warmed by the air from dry section and within the sub-saturated region. © 2020 Elsevier Ltd
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000517398200082
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115480]
专题	兰州理工大学能源与动力工程学院新能源学院
作者单位	1.Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University), Ministry of Education, Beijing; 102206, China; 2.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wei, Huimin,Huang, Xianwei,Chen, Lin,et al. Performance prediction and cost-effectiveness analysis of a novel natural draft hybrid cooling system for power plants[J]. Applied Energy,2020,262.
APA	Wei, Huimin,Huang, Xianwei,Chen, Lin,Yang, Lijun,&Du, Xiaoze.(2020).Performance prediction and cost-effectiveness analysis of a novel natural draft hybrid cooling system for power plants.Applied Energy,262.
MLA	Wei, Huimin,et al."Performance prediction and cost-effectiveness analysis of a novel natural draft hybrid cooling system for power plants".Applied Energy 262(2020).