Characterisation of metal organic frameworks for adsorption cooling

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), C 18H 6Cu 3O 12) and MIL-100 (Fe-BTC (Iron 1,3,5- benzenetricarboxylate), C 9H 3FeO 6) 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 0C. These results highlight the potential of using MOF materials to improve the efficiency of water adsorption cooling systems.

Publication DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2012.07.068
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences
Additional Information: © 2012 Elsevier Ltd. Open access under CC BY licence
Uncontrolled Keywords: Adsorption cooling,HKUST-1,Metal organic frameworks,MIL-100,Silica gel RD-2060/water,Condensed Matter Physics,Mechanical Engineering,Fluid Flow and Transfer Processes
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.sci ... 6047?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2012-12-01
Authors: Rezk, Ahmed (ORCID Profile 0000-0002-1329-4146)
Al-Dadah, Raya
Mahmoud, Saad
Elsayed, Ahmed

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