Adsorption of ethanol on activated carbon fiber: simulation and experimental investigations.
Author(s) : KOYAMA S., KARIYA K., SHARKAWY I. I. el-, et al.
Summary
The performance of low temperature waste-heat-driven adsorption cooling systems depends on the thermophysical properties of the adsorbent/refrigerant pair as well as the performance of the adsorber/desorber heat exchanger. For optimum design of the adsorber, it is essential to clarify the local heat and mass transfer phenomena during the adsorption process. The study deals with the adsorption characteristics of activated carbon fiber (ACF) of type A-20 and ethanol pair. Adsorption equilibrium has been measured and Dubinin-Radushkevich (D-R) equation is used to fit the experimental data. The study also presents a one-dimensional transient numerical simulation to investigate the performance of adsorber such as cooling capacity and optimum adsorption cycle time. Adsorber bed temperature, evaporator temperature, ACF bed thickness and apparent density control the heat and mass transfer phenomena in the adsorber/desorber bed. It is found that the cooling capacity can be enhanced by optimizing ACF bed thickness. Simulation results also show that the temperatures of adsorber and evaporator do not have significant effects on the optimum adsorption cycle time.
Details
- Original title: Adsorption of ethanol on activated carbon fiber: simulation and experimental investigations.
- Record ID : 2007-0177
- Languages: English
- Source: ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
- Publication date: 2006/05/21
Links
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Indexing
- Themes: Absorption and adsorption systems
- Keywords: Calculation; Mass transfer; Heat transfer; Activated carbon; Adsorption system; Simulation; Fibre; Ethanol
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- Author(s) : SHARKAWY I. I. el-, SAHA B. B., CHAKRABORTY A., et al.
- Date : 2006/05/21
- Languages : English
- Source: ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
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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
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Heat and mass transfer analysis for adsorber de...
- Author(s) : KOYAMA S., KARIYA K., KUWAHARA K., et al.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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Performance prediction of adsorption cooling sy...
- Author(s) : IMAMURA H., MIYAZAKI T., SHARKAWY I. I. A. el, et al.
- Date : 2015
- Languages : Japanese
- Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 32 - n. 3
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Study on an activated carbon fiber-ethanol adso...
- Author(s) : SAHA B. B., SHARKAWY I. I. el-, CHAKRABORTY A., et al.
- Date : 2007/01
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 1
- Formats : PDF
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