Modeling the performance of a two-bed solar adsorption chiller using a multi-walled carbon nanotube/MIL-100(Fe) composite adsorbent

Najam ul Qadir, Syed A.M. Said and Rached Ben Mansour

Renewable Energy, 2017, vol. 109, issue C, 602-612

Abstract: Adsorption-based cooling systems are becoming increasingly popular due to a continuous rise in the worldwide demand for refrigeration and air-conditioning. This study aims to enhance the cooling performance of a solar-powered adsorption chiller using a novel multi-walled carbon nanotube (MWCNT)/MIL-100(Fe) composite adsorbent. A numerically validated modeling approach has been employed to evaluate the coefficient of performance (COP) and specific cooling power (SCP) for the two-bed adsorption chiller. For solar energy input, a flat-plate solar collector has been employed with three different configurations of glaze – (a) single-glazed cover, (b) double-glazed cover, and (c) single-glazed cover with transparent insulation material. It has been observed that the MWCNT/MIL-100(Fe) composite adsorbent containing 6.1% MWCNTs results in a maximum achievable cooling power of 455 Wkg−1for the adsorption chiller. The proposed MWCNT/MIL-100(Fe) composite adsorbent can be considered as a successful potential replacement of the traditionally used silica gel- and zeolite-based adsorbents for use in the next generation of high-performance solar adsorption chillers.

Keywords: Metal organic frameworks; Analytical modeling; Adsorption chiller (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:109:y:2017:i:c:p:602-612

DOI: 10.1016/j.renene.2017.03.077

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