A new method for determining coupled heat and mass transfer coefficients between air and liquid desiccant
A new method for determining coupled heat and mass transfer coefficients between air and liquid desiccant
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确定空气与液体干燥剂之间耦合传热传质系数的新方法
DOI：
10.1016/j.ijheatmasstransfer.2007.11.040
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发表时间：
2008-07
影响因子：
5.2
通讯作者：
殷勇高
中科院分区：
文献类型：
--
作者：
殷勇高
本文基于NTU-Le模型对液体除湿器的特性进行了研究。结果表明，刘易斯数Le对除湿溶液除湿过程中的空气出口湿度比影响不大。提出了一种新的空气-溶液耦合传热传质系数的计算方法-hD-Le分离评价法，该方法通过实验获得空气和溶液进出口参数，计算空气-溶液耦合传热传质系数。根据实验数据和hD-Le分离评价方法，分析了空气体积流量、温度、湿度比以及溶液浓度、温度对刘易斯数、传热传质系数的影响。计算结果表明，刘易斯数与空气和干燥剂的运行参数和条件有很大关系。此外，还建立了传热传质系数的关联式。另外的74组实验通过比较空气/溶液参数变化与计算数据验证了所开发的关联式。
This paper presented the characteristic of liquid desiccant dehumidification based on NTU–Le model. The results showed that the Lewis number Le had little effect on air outlet humidity ratio during desiccant solution dehumidification process. A new method called hD–Le separative evaluation method was developed for determining coupled heat and mass transfer coefficients between air and liquid desiccant, through which the heat and mass transfer coefficients between air and liquid desiccant were calculated to obtain from experimental inlet and outlet parameters of air and desiccant solution. The effects of the air volume flow rate, temperature, humidity ratio and the solution concentration, temperature on the Lewis number, heat and mass transfer coefficient were analyzed according to experimental data and the hD–Le separative evaluation method. Based on the computation results, it was concluded that the Lewis number greatly depended on the operation parameters and conditions of the air and desiccant. In addition, the correlations of the heat and mass transfer coefficients were developed. The additional 74 groups of experiments validated the developed correlations by comparison of air/solution parameters change with the calculation data.
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影响因子：
6.4
作者：
Dai, YJ;Wang, RZ;Yu, JD
通讯作者：
Yu, JD
影响因子：
6.7
作者：
Xiaoyang Chen;Z. Li;Yi Jiang;K. Qu
通讯作者：
Xiaoyang Chen;Z. Li;Yi Jiang;K. Qu
DOI：
10.1016/s0140-7007(01)00016-0
发表时间：
2002-05
期刊：
International Journal of Refrigeration-revue Internationale Du Froid
影响因子：
--
作者：
A. Al-Farayedhi;P. Gandhidasan;M. A. Al-Mutairi
通讯作者：
A. Al-Farayedhi;P. Gandhidasan;M. A. Al-Mutairi
影响因子：
6.7
作者：
D. Stevens;J. Braun;S. Klein
通讯作者：
D. Stevens;J. Braun;S. Klein
影响因子：
4.6
作者：
Arshad Y. Khan
通讯作者：
Arshad Y. Khan