标题:Crosswind influence on cooling capacity in different zones for high level water collecting wet cooling towers based on field test
作者:Dang, Zhigang; Gao, Ming; Long, Guoqing; Zou, Jian; He, Suoying; Sun, Fengzhong
通讯作者:Gao, Ming;Gao, M
作者机构:[Dang, Zhigang; Gao, Ming; Zou, Jian; He, Suoying; Sun, Fengzhong] Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China.; 更多
会议名称:International Workshop on Wind-Related Disasters and Mitigation (WRDM)
会议日期:MAR 11-14, 2018
来源:JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
出版年:2019
卷:190
页码:134-142
DOI:10.1016/j.jweia.2019.04.014
关键词:High level water collecting wet cooling tower; Field test; Cooling; capacity; Fillings; Crosswind
摘要:In order to evaluate the thermal performance of different zones for high level water collecting wet cooling towers (HWCTs) precisely, field test was conducted on one real HWCT equipped for a 1000 MW unit under different crosswind and water-spraying density conditions. In this paper, three parameters alpha(s), alpha(f) and alpha(r), which represent the cooling capacity of water-spraying zone, fillings zone and rain zone, respectively, are introduced to evaluate the crosswind influence on different zones. The variations of alpha(s), alpha(f) and alpha(r) under windless and crosswind conditions were researched. The results demonstrate that, under windless condition, alpha(f) exceeds 88%. As crosswind velocity rises from 0.28 m/s to 4.79 m/s, when Q = 68646 t/h, alpha(f) decreases by 8.8%, while alpha(s) keeps around 10%, and alpha(r) increases by 5.6%. Additionally, it can be obtained that the cooling capacity of fillings is more outstanding under lower circulating water flow rate and small crosswind velocity conditions. Based on the test data, the fitting equations between alpha(f) and crosswind velocity are obtained. Briefly, the cooling capacity of different zones is obtained in this paper, and derived the changing rules of cooling capacity with different crosswind velocity, which can be used to guide the engineering design.
收录类别:CPCI-S;EI;SCIE
资源类型:会议论文;期刊论文
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