Liquid desiccant dehumidification and regeneration process: Advancing correlations for moisture and enthalpy effectiveness
Liquid desiccant dehumidification and regeneration process: Advancing correlations for moisture and enthalpy effectiveness
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DOI：
10.1016/j.apenergy.2022.118962
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发表时间：
2022-03-30
期刊：
影响因子：
11.2
通讯作者：
Roskilly, Anthony Paul
中科院分区：
文献类型：
--
作者：
Giampieri, Alessandro;Ma, Zhiwei;Roskilly, Anthony Paul
该论文建立了预测液体干燥剂除湿和再生过程的湿度和热函效率的相关性。从文献中收集了具有不同系统尺寸、液体干燥剂溶液（LiBr 和 LiCl）、填料的几何形状和尺寸以及流动配置（逆流和错流）的实验除湿和再生数据，以进行相关性开发。所建立的相关性包括空气和干燥剂溶液的质量流量、空气和干燥剂溶液的入口温度、入口空气的水分含量和热函、与入口干燥剂溶液处于平衡状态的空气的水分含量和热函、填料的几何形状、尺寸和润湿性以及空气和干燥剂溶液之间的接触时间。计算效果与实验效果之间的比较显示出良好的匹配，误差范围为 4.37-7.2%，并且与文献中可用的其他相关性相比表现更好。这些新开发的相关性将有助于快速系统设计和性能分析，并为液体干燥剂技术建立具有成本效益的解决方案。
The paper developed correlations for predicting moisture and enthalpy effectiveness of the liquid desiccant dehumidification and regeneration process. Experimental dehumidification and regeneration data available from the literature with different system dimensions, liquid desiccant solutions (LiBr and LiCl), geometry and size of the packing and flow configuration (counter-and cross-flow) were gathered for correlations development. The developed correlations involved the mass flow rates of air and desiccant solution, the inlet temperature of the air and the desiccant solution, the moisture content and enthalpy of the inlet air, the moisture content and enthalpy of air at an equilibrium state with the inlet desiccant solution, the geometry, dimensions and wetting of the packing and the contact time between air and desiccant solution. The comparison between the calculated and experimental effectiveness showed a good match, which had errors ranging 4.37-7.2%, and performed better when compared to other correlations available in the literature. These newly developed correlations will be useful for quick system design and performance analysis and to establish cost-effective solutions for liquid desiccant technology.