A new generation cooling device employing CaCl2-in-silica gel-water system

Bidyut Baran Saha; Anutosh Chakraborty; Shigeru Koyama; Yu I. Aristov

doi:10.1016/j.ijheatmasstransfer.2008.06.018

A new generation cooling device employing CaCl₂-in-silica gel-water system

Bidyut Baran Saha, Anutosh Chakraborty, Shigeru Koyama, Yu I. Aristov

Research output: Contribution to journal › Article › peer-review

164 Citations (Scopus)

Abstract

This article presents the dynamic modelling of a single effect two-bed adsorption chiller utilizing the composite adsorbent "CaCl₂ confined to KSK silica gel" as adsorbent and water as adsorbate, which is based on the experimentally confirmed adsorption isotherms and kinetics data. Compared with the experimental data of conventional adsorption chiller based on RD silica gel + water pair, we found that the new working pair provides better cooling capacity and performances. From numerical simulation, it is also found that the cooling capacity can be increased up to 20% of the parent silica gel + water adsorption chiller and the coefficient of performance (COP) can be improved up to 25% at optimum conditions. We also demonstrate here that the best peak chilled water temperature suppression, and the maximum cooling capacity can be achieved by the optimum analysis for both cycles.

Original language	English
Pages (from-to)	516-524
Number of pages	9
Journal	International Journal of Heat and Mass Transfer
Volume	52
Issue number	1-2
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2008.06.018
Publication status	Published - Jan 15 2009

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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abstract = "This article presents the dynamic modelling of a single effect two-bed adsorption chiller utilizing the composite adsorbent {"}CaCl2 confined to KSK silica gel{"} as adsorbent and water as adsorbate, which is based on the experimentally confirmed adsorption isotherms and kinetics data. Compared with the experimental data of conventional adsorption chiller based on RD silica gel + water pair, we found that the new working pair provides better cooling capacity and performances. From numerical simulation, it is also found that the cooling capacity can be increased up to 20% of the parent silica gel + water adsorption chiller and the coefficient of performance (COP) can be improved up to 25% at optimum conditions. We also demonstrate here that the best peak chilled water temperature suppression, and the maximum cooling capacity can be achieved by the optimum analysis for both cycles.",

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AU - Aristov, Yu I.

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