Thermodynamic analysis of activated carbon-methanol based adsorption cooling cycles

Ibrahim Ibrahim El-Sharkawy, Bidyut Baran Saha*, Mahmoud Hassan, Shigeru Koyama, Anutosh Chakraborty, Kim Choon NG

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Adsorption isotherms of activated carbon-methanol pair have been experimentally investigated. The adsorbent used in the present study is activated carbon of type Maxsorb III having a surface area as high as 3,200 m2/g. Dubinin-Radushkevich (D-R) equation is used to fit the experimental isotherms data and to provide the relationship between the equilibrium pressure, adsorption temperature and adsorption uptake (P-T-W) diagram. Heat of adsorption is also estimated by using the Clausius-Clapeyron equation. Thermodynamic analysis of Maxsorb III-methanol based adsorption cooling cycle has been presented. Effect of operating conditions on the cycle performance in terms of specific cooling effect and coefficient of performance has also been studied. Comparison between the performance of Maxsorb III-methanol, Maxsorb III-ethanol, silica gel-water and activated carbon-ammonia based adsorption cooling cycles has also been presented. Theoretical calculations show the superiority of the first pair for both air conditioning and ice making applications.

Original languageEnglish (US)
Title of host publication4th Asian Conference on Refrigeration and Air-Conditioning, ACRA 2009
PublisherNational Taipei University of Technology
Pages404-409
Number of pages6
ISBN (Print)9868509610, 9789868509610
StatePublished - Jan 1 2009
Event4th Asian Conference on Refrigeration and Air-Conditioning, ACRA 2009 - Taipei, Taiwan, Province of China
Duration: May 20 2009May 22 2009

Publication series

Name4th Asian Conference on Refrigeration and Air-Conditioning, ACRA 2009

Other

Other4th Asian Conference on Refrigeration and Air-Conditioning, ACRA 2009
CountryTaiwan, Province of China
CityTaipei
Period05/20/0905/22/09

Keywords

  • Activated carbon
  • Adsorption
  • Adsorption cooling
  • Methanol

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)

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