Analytical solution of adiabatic heat and mass transfer process in packed-type liquid desiccant equipment and its application
Analytical solution of adiabatic heat and mass transfer process in packed-type liquid desiccant equipment and its application
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DOI：
10.1016/j.solener.2005.12.002
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发表时间：
2006-11
期刊：
影响因子：
6.7
通讯作者：
Xiaoyang Chen;Z. Li;Yi Jiang;K. Qu
中科院分区：
文献类型：
--
作者：
Xiaoyang Chen;Z. Li;Yi Jiang;K. Qu
本文基于所提出的平行流和逆流两种构型的数学模型，给出了填料式液体干燥剂设备绝热传质的综合解析解。在推导过程中，假设吸收塔入口和出口的干燥剂浓度恒定。这意味着该解决方案适用于高干燥剂流速条件。与文献中可靠的实验数据相比，该解析解具有良好的准确性。除湿率由该溶液得出，并且可以很容易地分析影响性能的每个因素。另一个好处是，它可以用来发现最佳的空气-溶液流速比，其中驱动力可以在整个色谱柱中保持恒定。最佳流量比可用于优化系统设计和实现可逆的传热传质过程。
This paper presents an integrated analytical solution of adiabatic heat and mass transfer in packed-type liquid desiccant equipment based on proposed mathematical models in both parallel-flow and counter-flow configurations. In the derivation process, the desiccant concentration at the inlet and outlet of the absorber is assumed to be constant. That means this solution is suitable for high desiccant flow rate conditions. This analytical solution has good accuracy when compared with reliable experimental data available in the literature. The moisture removal rate is derived from this solution and every factor that influences performance can be easily analyzed. Another benefit is that it can be used to discover the optimum air-to-solution flow rate ratio with which the driving force may be kept constant throughout the column. The optimum flow rate ratio may be used for optimal system design and to realize a reversible heat and mass transfer process.