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空气与水逆流直接接触热质交换模型计算及与实验比较

Model calculation of air water counter flow heat and mass transfer and comparison with experimental data

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【作者】 宋垚臻

【Author】 SONG Yaozhen (Zhongkai University of Agriculture and Technology, Guangzhou 510225,Guangdong,China)

【机构】 仲恺农业技术学院 广东广州510225

【Abstract】 According to general equations deducted from a model of heat and mass transfer of air and water in direct contact counter flow reported in the author’s previous work,the outlet parameters of air and water counter flow through a paper wet pad were calculated by using the MATLAB-software.Comparing the calculation results with experiment data of prior researchers, the deviation of calculated outlet air wet bulb temperature from experimental outlet air wet bulb temperature was less than 10%,the deviation of calculated outlet water temperature from experimental outlet water temperature was less than 9%,and the deviation of calculated outlet air dry bulb temperature from experimental outlet air dry bulb temperature was less than 10% when NTU_h was more than 0.6.The deviation of calculated outlet air dry bulb temperature from experimental outlet air dry bulb temperature was more than 10% when NTU_h was less than 0.6.The model calculations were in good agreement with experiments and the general equations could be used to design evaporation cooling equipment,such as wet pad and so on.

【关键词】 空气水热质交换比较
【Key words】 air and waterheat and mass transfercomparison
  • 【文献出处】 化工学报 ,Journal of Chemical Industry and Engineering(China) , 编辑部邮箱 ,2005年06期
  • 【分类号】TK124
  • 【被引频次】25
  • 【下载频次】466
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