Experimental study on water vapor sorption performance of metal organic frameworks and their application potential for indoor air dehumidification

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2024-08-06 DOI:10.1016/j.ijrefrig.2024.08.007

Honghao Huang , Jinzhe Nie , Fuqun He

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Abstract

This study investigates the water vapor sorption performance of five metal organic framework materials (MIL-101(Cr), MIL-100(Fe), aluminum fumarate, MOF-303(Al), PCN-333(Al)) for indoor environment humidity control through experiment measurements, aims to identify materials that enhance water vapor adsorption capacity and allow for low temperature regeneration. The results show that MIL-101(Cr) exhibits highest water vapor adsorption capacity which is 3.5 to 6 times of conventional desiccant materials. The adsorption isotherm of MIL-101(Cr) exhibits an "S" type change, with a steep point between 30 % and 60 % RH which falls within the indoor thermal comfortable range. The experiment results also show that MIL-101(Cr) is nearly completely desorbed at relative humidity of 20 %, indicating its potential for low-temperature regeneration. Based on its strong water vapor sorption performance, the green and low-cost synthesis method will be the key for its utilization to improve the efficiency of solid desiccant air conditioning system.

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金属有机框架的水蒸气吸附性能实验研究及其在室内空气除湿中的应用潜力

本研究通过实验测量研究了五种金属有机框架材料（MIL-101(Cr)、MIL-100(Fe)、富马酸铝、MOF-303(Al)、PCN-333(Al)）在室内环境湿度控制中的水蒸气吸附性能，旨在找出能提高水蒸气吸附能力并允许低温再生的材料。结果表明，MIL-101（Cr）的水蒸气吸附能力最高，是传统干燥剂材料的 3.5 至 6 倍。MIL-101(Cr) 的吸附等温线呈 "S "型变化，在 30 % 至 60 % 相对湿度之间有一个陡峭点，属于室内热舒适范围。实验结果还表明，MIL-101(Cr) 在相对湿度为 20 % 时几乎完全解吸，这表明它具有低温再生的潜力。基于其强大的水蒸气吸附性能，绿色、低成本的合成方法将成为利用其提高固体干燥剂空调系统效率的关键。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.