Modeling the performance of the indirect dry cooling system in a thermal power generating unit under variable ambient conditions

doi:10.1016/j.energy.2018.12.046

CORC > 兰州理工大学 > 兰州理工大学

	Modeling the performance of the indirect dry cooling system in a thermal power generating unit under variable ambient conditions
	Wu, Tao 1; Ge, Zhihua 1; Yang, Lijun 1; Du, Xiaoze 2
刊名	ENERGY
	2019-02-15
卷号	169 页码:625-636
关键词	Ambient condition Indirect dry cooling Sensitivity analysis Standard coal consumption rate Thermal power generation Thermo-flow performance
ISSN号	0360-5442
DOI	10.1016/j.energy.2018.12.046
英文摘要	In order to evaluate the impact of ambient conditions on the performance of indirect dry cooling system quantitatively, an analytical model was established which combined the numerical simulation of thermo-flow performance of natural draft dry cooling tower and the thermodynamic analysis of water steam system in a 660 MW thermal power generating unit. The model was verified by experimental results and practical operating data, respectively. Temperature and flow fields of cooling air, as well as the back pressure of turbine were obtained under various natural crosswind and ambient temperature conditions. Standard coal consumption rates were acquired accordingly. The results indicated that the back pressure and standard coal consumption rate increased with the ambient temperature and wind speed. The most additional 27.72 g/kWh of standard coal consumption rate can be caused by the natural crosswind and high ambient temperature for the investigated power generating unit. A sensitivity analysis was conducted and the results showed that the value of the standardized coefficients for natural crosswind speed and ambient temperature were 0.446 and 0.888, respectively. Therefore, though the natural crosswind could deteriorate the flow field of ambient air, the ambient temperature had a greater impact on the standard coal consumption rate. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	Fundamental Research Funds for the Central Universities[2018QN038]
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000459528500051
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32092]
专题	兰州理工大学能源与动力工程学院
通讯作者	Ge, Zhihua; Du, Xiaoze
作者单位	1.North China Elect Power Univ, Minist Educ, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wu, Tao,Ge, Zhihua,Yang, Lijun,et al. Modeling the performance of the indirect dry cooling system in a thermal power generating unit under variable ambient conditions[J]. ENERGY,2019,169:625-636.
APA	Wu, Tao,Ge, Zhihua,Yang, Lijun,&Du, Xiaoze.(2019).Modeling the performance of the indirect dry cooling system in a thermal power generating unit under variable ambient conditions.ENERGY,169,625-636.
MLA	Wu, Tao,et al."Modeling the performance of the indirect dry cooling system in a thermal power generating unit under variable ambient conditions".ENERGY 169(2019):625-636.