【摘要】 文献上常采用有效膜传热系数的方法来考虑管外水膜传热传质的综合效果，用析湿系数考虑对空气增湿降温的效果，这种基于对数平均温差或ε～ＮＴＵ方法对湿式空冷器进行热计算是比较粗糙和近似的．本文基于Ｍｅｒｋｅｌ的焓差法，用容积散质系数的方法对水膜的传热传质进行分析．在实验过程中改变了空气质流量以及喷水强度，测得有关数据，整理得出βｘｖ值．用多元回归方法得出的βｘｖ关联式，可供喷雾强化空冷器设计时选用更多还原

【Abstract】 The effective film heat transfer coefficient had been used in the references to consider the overall heat and mass transfer effect of water film outside tube wall and the moisure separating coeffecient had been used to consider increasing moisture and decreasing temperature in air stream. It is relatively crude and inaccurate to design mist spraying air cooler by the method based on LMTD or ε ～NTU. A volumetric mass transfer coefficient method based on Merkel’s enthalpy difference method was used to analyze the film heat and mass transfer. The air mass flow rate as well as water spraying intensity were varied in the experiment to get the value of β xv . The correlation of β xv was carried out by multi regression method which can be used in the design of mist spraying air coolers.更多还原