TY - JOUR
T1 - Adsorption parameter and heat of adsorption of activated carbon/HFC-134a pair
AU - Loh, Wai Soong
AU - Kumja, M.
AU - Rahman, Kazi Afzalur
AU - Ng, Kim Choon
AU - Saha, Bidyut Baran
AU - Koyama, Shigeru
AU - El-Sharkawy, Ibrahim I.
PY - 2010/1/1
Y1 - 2010/1/1
N2 - This article presents the adsorption isotherms of HFC-134a and activated carbon Maxsorb III measured using the constant-volume-variable-pressure method. The adsorption isotherms cover temperature ranges from 293 to 338 K and pressures up to 0.7 MPa. The trends of the experimental isotherms for activated carbon are found to be identical in all cases with previous studies except that the vapor uptake is slightly higher. The adsorption characteristic of the Dubinin-Ashtakov equation has been regressed from the experimental isotherms data and the maximum specific uptake is 2.15 kg of adsorbate adsorbed per kilogram of activated carbon. The heat of adsorption, which is concentration and temperature dependent, has also been extracted from the experiments.
AB - This article presents the adsorption isotherms of HFC-134a and activated carbon Maxsorb III measured using the constant-volume-variable-pressure method. The adsorption isotherms cover temperature ranges from 293 to 338 K and pressures up to 0.7 MPa. The trends of the experimental isotherms for activated carbon are found to be identical in all cases with previous studies except that the vapor uptake is slightly higher. The adsorption characteristic of the Dubinin-Ashtakov equation has been regressed from the experimental isotherms data and the maximum specific uptake is 2.15 kg of adsorbate adsorbed per kilogram of activated carbon. The heat of adsorption, which is concentration and temperature dependent, has also been extracted from the experiments.
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U2 - 10.1080/01457631003603949
DO - 10.1080/01457631003603949
M3 - Article
AN - SCOPUS:77951698815
VL - 31
SP - 910
EP - 916
JO - Heat Transfer Engineering
JF - Heat Transfer Engineering
SN - 0145-7632
IS - 11
ER -