Performance of a solar adsorption cooling and desalination system using aluminum fumarate and silica gel

Mahmoud Elsheniti*, Ahmed Rezk, Mohamed Shaaban, Mohamed Roshdy, Yahia Nagib, Osama Elsamni, Bidyut B Saha

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper numerically investigated the influence of adsorbent materials’ thermal and adsorption characteristics on the overall performance of solar adsorption cooling cum desalination systems. A case study using an array of solar collectors was conducted to compare the emerging Aluminum Fumarate metal-organic framework (Al-Fum) with conventional silica gel (SG) under typical meteorological data at a selected site. Although the adsorption characteristics of Al-Fum outperforms SG at the material level, the former’s low thermal characteristics increased the cumulative heat stored and limited the integrated-system performance. The low thermal diffusivity of Al-Fum slowed down the integrated system’s response, providing that the average solar COPs of the SG-based system over different months were higher by 83%, 43%, and 22% at inlet chilled water temperatures of 15 °C, 20 °C, and 25 °C, respectively, and 1 mm fin spacing. However, the best specific cooling power of the AF-based system were higher than those of the SG-based system by −16.6%, 16.8%, and 30.5% at these temperatures. Furthermore, the SG-based system was more negatively affected by reducing the heat storage initial temperature from 70 °C to 50 °C, but it attained COP and solar COP higher than those of the AF-based system by 14.9%–63%, respectively.
Original languageEnglish
Article number117116
JournalApplied Thermal Engineering
Volume194
Early online date23 May 2021
DOIs
Publication statusPublished - 25 Jul 2021

Bibliographical note

© 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Adsorption chiller
  • Aluminum fumarate
  • Desalination
  • Silica-gel
  • Solar cooling

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