Experimental investigation on activated carbon-ethanol pair for solar powered adsorption cooling applications

I. I. El-Sharkawy; B. B. Saha; S. Koyama; J. He; K. C. Ng; C. Yap

doi:10.1016/j.ijrefrig.2008.03.012

Experimental investigation on activated carbon-ethanol pair for solar powered adsorption cooling applications

I. I. El-Sharkawy, B. B. Saha^*, S. Koyama, J. He, K. C. Ng, C. Yap

^*Corresponding author for this work

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

139 Scopus citations

Abstract

Adsorption equilibrium uptake of ethanol onto a highly porous activated carbon based adsorbent, namely Maxsorb III, has been experimentally investigated using a thermo-gravimetric analyzer (TGA) unit over adsorption temperatures ranging from 20 to 60 °C. The Dubinin-Astakhov (D-A) equation has been used to correlate the experimental data. Isosteric heat of adsorption is also estimated by using the Clausius-Clapeyron equation. Employing a thermodynamically equilibrium model, the performance of the ideal adsorption cooling cycle has also been studied and compared to that of activated carbon fiber (ACF)-ethanol pair. Experimental results show that Maxsorb III can adsorb up to 1.2 kg of ethanol per kilogram of adsorbent. Theoretical calculations show that, the Maxsorb III-ethanol adsorption cycle can achieve a specific cooling effect of about 420 kJ kg^-1 at an evaporator temperature of 7 °C along with a heat source of temperature 80 °C and thus the pair is recommended for solar cooling applications.

Original language	English (US)
Pages (from-to)	1407-1413
Number of pages	7
Journal	International Journal of Refrigeration
Volume	31
Issue number	8
DOIs	https://doi.org/10.1016/j.ijrefrig.2008.03.012
State	Published - Dec 2008
Externally published	Yes

Keywords

Activated carbon
Adsorption system
Cooling
Ethanol
Experiment
Heating
Modelling
Performance
Simulation
Solar energy

ASJC Scopus subject areas

Building and Construction
Mechanical Engineering

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10.1016/j.ijrefrig.2008.03.012

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@article{d07fe03073b24c33a2564495addf10b5,

title = "Experimental investigation on activated carbon-ethanol pair for solar powered adsorption cooling applications",

abstract = "Adsorption equilibrium uptake of ethanol onto a highly porous activated carbon based adsorbent, namely Maxsorb III, has been experimentally investigated using a thermo-gravimetric analyzer (TGA) unit over adsorption temperatures ranging from 20 to 60 °C. The Dubinin-Astakhov (D-A) equation has been used to correlate the experimental data. Isosteric heat of adsorption is also estimated by using the Clausius-Clapeyron equation. Employing a thermodynamically equilibrium model, the performance of the ideal adsorption cooling cycle has also been studied and compared to that of activated carbon fiber (ACF)-ethanol pair. Experimental results show that Maxsorb III can adsorb up to 1.2 kg of ethanol per kilogram of adsorbent. Theoretical calculations show that, the Maxsorb III-ethanol adsorption cycle can achieve a specific cooling effect of about 420 kJ kg-1 at an evaporator temperature of 7 °C along with a heat source of temperature 80 °C and thus the pair is recommended for solar cooling applications.",

keywords = "Activated carbon, Adsorption system, Cooling, Ethanol, Experiment, Heating, Modelling, Performance, Simulation, Solar energy",

author = "El-Sharkawy, {I. I.} and Saha, {B. B.} and S. Koyama and J. He and Ng, {K. C.} and C. Yap",

note = "Funding Information: The authors acknowledge the financial support by the Ministry of Education, Science, Sports and Culture (MEXT), Japan, “Science and Technology Project”, Project No. 18560205.",

year = "2008",

month = dec,

doi = "10.1016/j.ijrefrig.2008.03.012",

language = "English (US)",

volume = "31",

pages = "1407--1413",

journal = "International Journal of Refrigeration",

issn = "0140-7007",

publisher = "Elsevier Ltd",

number = "8",

}

TY - JOUR

T1 - Experimental investigation on activated carbon-ethanol pair for solar powered adsorption cooling applications

AU - El-Sharkawy, I. I.

AU - Saha, B. B.

AU - Koyama, S.

AU - He, J.

AU - Ng, K. C.

AU - Yap, C.

N1 - Funding Information: The authors acknowledge the financial support by the Ministry of Education, Science, Sports and Culture (MEXT), Japan, “Science and Technology Project”, Project No. 18560205.

PY - 2008/12

Y1 - 2008/12

N2 - Adsorption equilibrium uptake of ethanol onto a highly porous activated carbon based adsorbent, namely Maxsorb III, has been experimentally investigated using a thermo-gravimetric analyzer (TGA) unit over adsorption temperatures ranging from 20 to 60 °C. The Dubinin-Astakhov (D-A) equation has been used to correlate the experimental data. Isosteric heat of adsorption is also estimated by using the Clausius-Clapeyron equation. Employing a thermodynamically equilibrium model, the performance of the ideal adsorption cooling cycle has also been studied and compared to that of activated carbon fiber (ACF)-ethanol pair. Experimental results show that Maxsorb III can adsorb up to 1.2 kg of ethanol per kilogram of adsorbent. Theoretical calculations show that, the Maxsorb III-ethanol adsorption cycle can achieve a specific cooling effect of about 420 kJ kg-1 at an evaporator temperature of 7 °C along with a heat source of temperature 80 °C and thus the pair is recommended for solar cooling applications.

AB - Adsorption equilibrium uptake of ethanol onto a highly porous activated carbon based adsorbent, namely Maxsorb III, has been experimentally investigated using a thermo-gravimetric analyzer (TGA) unit over adsorption temperatures ranging from 20 to 60 °C. The Dubinin-Astakhov (D-A) equation has been used to correlate the experimental data. Isosteric heat of adsorption is also estimated by using the Clausius-Clapeyron equation. Employing a thermodynamically equilibrium model, the performance of the ideal adsorption cooling cycle has also been studied and compared to that of activated carbon fiber (ACF)-ethanol pair. Experimental results show that Maxsorb III can adsorb up to 1.2 kg of ethanol per kilogram of adsorbent. Theoretical calculations show that, the Maxsorb III-ethanol adsorption cycle can achieve a specific cooling effect of about 420 kJ kg-1 at an evaporator temperature of 7 °C along with a heat source of temperature 80 °C and thus the pair is recommended for solar cooling applications.

KW - Activated carbon

KW - Adsorption system

KW - Cooling

KW - Ethanol

KW - Experiment

KW - Heating

KW - Modelling

KW - Performance

KW - Simulation

KW - Solar energy

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U2 - 10.1016/j.ijrefrig.2008.03.012

DO - 10.1016/j.ijrefrig.2008.03.012

M3 - Article

AN - SCOPUS:55249101012

SN - 0140-7007

VL - 31

SP - 1407

EP - 1413

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

IS - 8

ER -

Experimental investigation on activated carbon-ethanol pair for solar powered adsorption cooling applications

Abstract

Keywords

ASJC Scopus subject areas

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