Characterisation of metal organic frameworks for adsorption cooling

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

Abstract

Silica gel/water adsorption cooling systems suffer from size, performance and cost limitations. Therefore, there is a need for new adsorbent materials that outperform silica gel. Metal organic frameworks (MOFs) are new micro-porous materials that have extraordinary porosity and uniform structure. Due to the lack of published data that characterise MOF/water adsorption, this paper experimentally investigates the adsorption characteristics of HKUST-1 (Cu-BTC (copper benzene-1,3,5-tricarboxylate), C18H6Cu3O12) and MIL-100 (Fe-BTC (Iron 1,3,5-benzenetricarboxylate), C9H3FeO6) MOFs compared to silica gel RD-2060. The adsorption characteristics of Silica gel RD-2060, HKUST-1 and MIL-100 were determined using an advanced gravimetric dynamic vapour sorption analyser (DVS). Results showed that HKUST-1 performed better than silica gel RD-2060 with an increase of water uptake of 93.2%, which could lead to a considerable increase in refrigerant flow rate, cooling capacity and/or reducing the size of the adsorption system. However, MIL-100 MOF showed reduced water uptake comparable to silica gel RD-2060 for water chilling applications with evaporation at 5 ºC. These results highlight the potential of using MOF materials to improve the efficiency of water adsorption cooling systems.

Bibliographic note

Copyright 2012 Elsevier B.V., All rights reserved.

Details

Original languageEnglish
Pages (from-to)7366-7374
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Volume55
Issue number25-26
Early online date25 Aug 2012
Publication statusPublished - 1 Dec 2012

Keywords

  • Adsorption cooling, Metal organic frameworks, Silica gel RD-2060/water, HKUST-1, MIL-100