Progress in selecting desiccant and dehumidifier for liquid desiccant cooling system

Progress in selecting desiccant and dehumidifier for liquid desiccant cooling system
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液体除湿冷却系统干燥剂及除湿机选择进展

DOI:
10.1016/j.enbuild.2012.02.034
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发表时间:
2012-06
影响因子:
6.7
通讯作者:
Quan, Shuo
Quan, Shuo
中科院分区:
工程技术2区
文献类型:
--
作者:
Li, Xiu-Wei;Zhang, Xiao-Song;Cao, Rong-Quan;Quan, Shuo

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液体除湿冷却系统(LDCS)是一种具有良好节能潜力的替代空调系统。除湿性能是LDCS的关键部分;而干燥剂的品种和除湿机会影响除湿性能。然而,关于如何选择经济高效的液体干燥剂和性能良好的除湿机的研究还很少。为了改进,我们提出了一种选择具有成本效益的混合干燥剂组的新方法:它将非随机二液方程(NRTL方程)与干燥剂成本相结合,得到成本效益的数学形式。同时,通过对不同除湿机的比较实验,我们发现了一些对除湿机设计有帮助的技巧:采用较粗糙的表面和吸附复杂的方案可以达到更好的效果。这些进步使除湿性能提高了 50% 以上,可以使 LDCS 在未来的市场上更具竞争力。
Liquid desiccant cooling system (LDCS) is an alternative air-conditioning system with good energy-saving potential. Dehumidification performance is the key part of LDCS; while desiccant variety and dehumidifier influence the dehumidification performance. However, few works have been done about how to select cost-effective liquid desiccant and good performance dehumidifier. To improve, we proposed a new method for selecting a cost-effective mixed desiccant group: it combines the non-random two-liquid equation (NRTL equation) with the desiccant cost to get the mathematical form of the cost-effectiveness. Meanwhile, through the comparison experiments among different dehumidifiers, we have found out some helpful tips for dehumidifier design: it achieves better effect with rougher surface and adsorption absorption complex plan. These progresses increase the dehumidification performance by more than 50% and could make LDCS more competitive in the future market.
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