| 空气与水逆流直接接触热质交换模型计算及与实验比较 |
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| 引用本文： | 宋垚臻.空气与水逆流直接接触热质交换模型计算及与实验比较[J].化工学报,2005,56(6):999-100. |
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| 作者姓名： | 宋垚臻 |
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| 作者单位： | 仲恺农业技术学院，广东 广州 510225 |
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| 摘 要： | 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 thang 9%, and the deviation of calculated outlet air dry bulb temperature from experimental outlet air dry bulb temperature was less than 10% when NTUh 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 NTUh 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.
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| 关 键 词： | 空气-水 热质交换 比较 |
| 文章编号： | 0438-1157(2005)06-0999-05 |
| 收稿时间： | 2005-2-21 |
| 修稿时间： | 2005-4-19
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Model calculation of air water counter flow heat and mass transfer and comparison with experimental data |
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| SONG Yaozhen.Model calculation of air water counter flow heat and mass transfer and comparison with experimental data[J].Journal of Chemical Industry and Engineering(China),2005,56(6):999-100. |
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| Authors: | SONG Yaozhen |
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| 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 NTUh 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 NTUh 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. |
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| Keywords: | air and water heat and mass transfer comparison |
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