流体机械2025，Vol.53Issue(8)：20-26,7.DOI:10.3969/j.issn.1005-0329.2025.08.003
混流闭式冷却塔的冷却能力和能耗比试验研究
Experimental study on cooling capacity and energy consumption ratio of mixed-flow closed circuit cooling towers
摘要
Abstract
To address insufficient performance and excessive energy consumption in hybrid closed-circuit cooling towers under variable operating conditions,on the basis of the prototype mixed flow closed cooling tower,it has been improved using the improved tower as the test subject,To study the effects of variations in inlet water temperature(36.9～39.9℃),circulating water flow rate(125～170 m3/h),and fan power(10.48～16 kW)on cooling capacity and energy consumption ratio.The study revealed that increasing inlet water temperature raised the circulating water temperature drop(0.8℃ per 10℃ increase),while cooling efficiency and cooling capacity exhibited a non-linear initial-increase-followed-by-decrease pattern,reaching a synergistic optimization peak at 38.2℃(107.8%cooling capacity,59.7%cooling efficiency,0.146 energy consumption ratio).Higher circulating water flow rates reduced heat transfer efficiency(12%decrease in temperature drop)but improved cooling capacity by 34.5%(89%→119.7%),concurrently lowering the energy consumption ratio by 14.9%(0.174→0.148).Elevating fan power enhanced heat dissipation(11.4%temperature drop increase)cooling capacity improved slightly(99.5%→102%),while the energy consumption ratio increased by 25.4%(0.126→0.158).Through multi-parameter analysis,the research elucidates the operational mechanisms of these variables on cooling tower performance,establishes quantitative relationships between operating parameters and energy consumption metrics,and provides quantifiable optimization strategies for industrial cooling tower regulation.关键词
混流闭式冷却塔/影响因素/冷却能力/能耗比/冷却效率Key words
mixed flow closed cooling tower/influencing factors/cooling capacity/efficiency consumption ratio/cooling efficiency分类
机械制造引用本文复制引用
鲁家琛,盛健,张华,凌发全..混流闭式冷却塔的冷却能力和能耗比试验研究[J].流体机械,2025,53(8):20-26,7.基金项目
上海市2020年度"科技创新行动计划"技术标准项目(20DZ2204400) （20DZ2204400）
