横流式冷却塔换热模型与影响因素研究

Research on heat transfer model and affecting factors for cross flow cooling towers

中文关键词: 横流式冷却塔  换热模型 影响因素  正交试验

英文关键词: cross  flow cooling  towers, heat  transfer model, influence  factors, orthogonal  experiment

中文摘要:

      根据Merkel的冷却塔传热传质理论,推导了适应于横流式冷却塔的换热模型,通过理论模型正交试验和实测数据因子相关性分析,研究了横流式冷却塔换热性能的影响因素。实测数据因子相关性分析结果表明,风量对横流式冷却塔换热性能影响程度最小,与理论模型正交实验结果存在一定的差异。运行时应保证横流式冷却塔进水流量的分布均匀,才能更有效的利用换热面积,提高横流式冷却塔换热效率。

英文摘要:

      The heat transfer modelwas derived forcross flow cooling towers according to heat and mass transfer theory put forward byMerkel for cooling towers. Affectingfactors of heat transfer performance for cross flow cooling towerswerestudiedthrough orthogonal experimentsof theoretical model and correlation factor analysis of the measured data.The resultsof correlationfactor analysis of the measured data show that the influence of air volume is minimized, and there existsome differences with the orthogonal experiments of theoretical model. The water flowof cross flow cooling towers should be ensured uniform distribution in runtime, in order to make more use of heat exchange areaeffectively and improve thermal efficiency for cross flow cooling towers.