TY - GEN
T1 - Adsorption characteristics of ethanol onto promising adsorbents for adsorption cooling applications
AU - El-Sharkawy, Ibrahim I.
AU - Miyazaki, Takahiko
AU - Saha, Bidyut Baran
AU - Koyama, Shigeru
N1 - Funding Information:
This work was financially supported by Japan Science and Technology Agency (JST), Core Research Evolution Science and Technology (CREST). The authors express their gratitude towards the research group of Prof. S.H. Yoon of IMCE, Kyushu University, Japan for the preparation of adsorbent samples.
Funding Information:
This work was financially supported by Japan Science and Technology Agency (JST), Evolution Science and Technology (CREST). The authors express their gratitude towards the research group of Prof. S.H. Yoon of University, Japan for the preparation of adsorbent samples.
PY - 2015
Y1 - 2015
N2 - Adsorption characteristics of ethanol onto three promising adsorbents have been investigated for developing high performance adsorption chillers. Adsorbents used in the present study are (i) parent Maxsorb III, (ii) two adsorbents based on spherical phenol resin treated with different mass ratios of KOH named as KOH4-PR and KOH6-PR. Adsorption equilibrium and kinetics of the assorted pairs have been measured using magnetic suspension adsorption measurement unit. The Dubinin-Astakhov (D-A) and Dubinin-Radushkevich (D-R) equations are used to fit adsorption isotherms whilst adsorption kinetics is presented by Fickian diffusion model. The pressure-temperature-concentration diagrams of the studied adsorbents have also been presented. Experimental results show that the adsorption equilibrium capacities of KOH6-PR/ethanol, KOH4-PR/ethanol and Maxsorb III/ethanol pairs are 2, 1.43 and 1.2 kg kg-1, respectively. The diffusion time constant of KOH4-PR is found to be higher than that of other studied adsorbents especially at the lower range of adsorption temperatures.
AB - Adsorption characteristics of ethanol onto three promising adsorbents have been investigated for developing high performance adsorption chillers. Adsorbents used in the present study are (i) parent Maxsorb III, (ii) two adsorbents based on spherical phenol resin treated with different mass ratios of KOH named as KOH4-PR and KOH6-PR. Adsorption equilibrium and kinetics of the assorted pairs have been measured using magnetic suspension adsorption measurement unit. The Dubinin-Astakhov (D-A) and Dubinin-Radushkevich (D-R) equations are used to fit adsorption isotherms whilst adsorption kinetics is presented by Fickian diffusion model. The pressure-temperature-concentration diagrams of the studied adsorbents have also been presented. Experimental results show that the adsorption equilibrium capacities of KOH6-PR/ethanol, KOH4-PR/ethanol and Maxsorb III/ethanol pairs are 2, 1.43 and 1.2 kg kg-1, respectively. The diffusion time constant of KOH4-PR is found to be higher than that of other studied adsorbents especially at the lower range of adsorption temperatures.
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U2 - 10.18462/iir.icr.2015.0188
DO - 10.18462/iir.icr.2015.0188
M3 - Conference contribution
AN - SCOPUS:85016771721
T3 - Refrigeration Science and Technology
SP - 3719
EP - 3726
BT - 24th IIR International Congress of Refrigeration, ICR 2015
PB - International Institute of Refrigeration
T2 - 24th IIR International Congress of Refrigeration, ICR 2015
Y2 - 16 August 2015 through 22 August 2015
ER -