Share
IIR document
Performance enhancement of adsorption cooling cycle by pyrolysis of Maxsorb III activated carbon with ammonium carbonate.
Author(s) : GHAZY M., ASKALANY A., KAMEL A., KHALIL K. M. S., MOHAMMED R. H., SAHA B. B.
Type of article: IJR article
Summary
Maxsorb III is the best available microporous activated carbon. The parent Maxsorb III has been modified by pyrolysis in the presence of ammonia carbonate. The adsorption isotherms and kinetics of HFC404A onto the modified Maxsorb III are experimentally measured over 25 °C to 75 °C. Tóth and Dubinin-Astakhov models are utilized to fit the experimentally measured data. The isosteric heat of adsorption is calculated by applying the Clausius-Clapeyron equation. The adsorption kinetics of the modified Maxsorb III/HFC404A are fitted using the linear driving force model and Fickian Diffusion equation. Experimental measurements indicate that the modified Maxsorb III has a maximum uptake of 2.65 kg.kg−1 of HFC404A at 25 °C, which is the highest reached value till today.
Additionally, the adsorption cooling system efficacy is evaluated under typical operating conditions using the modified Maxsorb III/HFC404A pair. The modified Maxsorb III/HFC404A could achieve a specific cooling power (SCP) of 747 W per kg of adsorbent along with a coefficient of performance (COP) of 0.40. Compared to the parent Maxsorb III/HFC404A pair, the pyrolyzed Maxsorb III/HFC404A pair provides the SCP and COP by a factor of 2.23 and 1.7, respectively, which are are the current benchmark.
Available documents
Format PDF
Pages: 210-221
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Performance enhancement of adsorption cooling cycle by pyrolysis of Maxsorb III activated carbon with ammonium carbonate.
- Record ID : 30028299
- Languages: English
- Subject: Technology
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 126
- Publication date: 2021/06
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2020.12.036
Links
See other articles in this issue (25)
See the source
Indexing
- Themes: Absorption and adsorption systems
- Keywords: Adsorption system; Expérimentation; COP; Performance; Cooling capacity; Activated carbon; Adsorbent; R404A
-
Effect of improving thermal conductivity of the...
- Author(s) : ASKALANY A. A., HENNINGER S. K., GHAZY M., et al.
- Date : 2017/01/05
- Languages : English
- Source: Applied Thermal Engineering - vol. 110
View record
-
Investigation of a single consolidated adsorber...
- Author(s) : WANG S. G., WANG R. Z., WU J. Y., et al.
- Date : 2003/04/22
- Languages : English
- Source: Cryogenics and refrigeration. Proceedings of ICCR 2003.
View record
-
Study on adsorption of methanol onto carbon bas...
- Author(s) : SHARKAWY I. I. el-, HASSAN M., SAHA B. B., et al.
- Date : 2009/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 7
- Formats : PDF
View record
-
Experiments for measuring adsorption characteri...
- Author(s) : SAHA B. B., KOYAMA S., SHARKAWY I. I. el-, et al.
- Date : 2006/08
- Languages : English
- Source: HVAC&R Research - vol. 12 - n. 3b
View record
-
Thermal conductivity and volume cooling capacit...
- Author(s) : WANG L. W., METCALF S. J., CRITOPH R. E., et al.
- Date : 2011/04/06
- Languages : English
- Source: Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
- Formats : PDF
View record