Transient simulation of finned tube type adsorber employing activated carbon-ethanol as adsorbent-refrigerant pair

Skander Jribi, Takahiko Miyazaki, Bidyut Baran Saha, Shigeru Koyama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Adsorption cooling systems are gaining more interest because of their energy savings and environment protection. Therefore, simulations of heat and mass transfers in the adsorbing/desorbing bed, main component of the system are necessary to achieve more favorable design and to improve the performance. This paper presents computational fluid dynamics (CFD) transient simulation of finned tube type adsorber/desorber bed at operating conditions of adsorption cooling system. Activated carbon powder (ACP) of type Maxsorb III was packed between the fins and ethanol was used as refrigerant. The model uses linear driving force kinetic and diffusion equation, in addition to mass, momentum and energy conservation equations. Simulation results show that temperature and pressure profiles agree fairly with experimental data at lower adsorbent thicknesses. Morover, we found that adsorption kinetics restricted the amount adsorbed to 45% of possible amount for adsorption/desorption time of 350 s. This study validated the mathematical model of the finned tube type adsorber/desorber bed and will permits, in the future, to evaluate and to enhance the performance of air-conditioning and refrigeration based adsorption systems.

    Original languageEnglish
    Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
    PublisherInternational Institute of Refrigeration
    Pages575-582
    Number of pages8
    ISBN (Electronic)9782362150128
    DOIs
    Publication statusPublished - 2015
    Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
    Duration: Aug 16 2015Aug 22 2015

    Publication series

    NameRefrigeration Science and Technology
    ISSN (Print)0151-1637

    Other

    Other24th IIR International Congress of Refrigeration, ICR 2015
    CountryJapan
    CityYokohama
    Period8/16/158/22/15

    All Science Journal Classification (ASJC) codes

    • Control and Systems Engineering
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Condensed Matter Physics

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