Adsorption performance of round fin and tube type adsorber employing activated carbon fiber/ethanol pair

Keishi Kariya, Ryo Tateishi, Ken Kuwahara, Bidyut Baran Saha, Shigeru Koyama

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

    1 Citation (Scopus)

    Abstract

    The severity of the ozone layer destruction problem has been calling for rapid developments in environment friendly adsorption cooling systems. However, the widespread dissemination of adsorption system is hindered due to its poor performance, which mainly results from the inadequate design of adsorber/desorber heat exchanger. The present paper deals with the numerical investigation on the adsorption performance of a round fin-and-tube type adsorber/desorber heat exchanger using activated carbon fiber (ACF)-ethanol as adsorbent-refrigerant pair. The effects of the local heat and mass transfer as well as the fin geometry of the adsorber/desorber are accounted in the present two-dimensional modeling. Adsorption performance have been determined varying five parameters, such as the ACF bed apparent density, fin thickness, fin pitch, fin height and tube diameter along with evaporator and cooling water inlet temperatures. The results show that the adsorption performances increase by optimizing the tube diameter, fin height and fin pitch. It is also found that all parameters have some influence on the optimum adsorption cycle time and the optimum cycle time is found to be around 150 s.

    Original languageEnglish
    Title of host publication2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007
    Pages829-835
    Number of pages7
    DOIs
    Publication statusPublished - 2007
    Event2007 ASME/JSME Thermal Engineering Summer Heat Transfer Conference, HT 2007 - Vancouver, BC, Canada
    Duration: Jul 8 2007Jul 12 2007

    Publication series

    Name2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007
    Volume3

    Other

    Other2007 ASME/JSME Thermal Engineering Summer Heat Transfer Conference, HT 2007
    CountryCanada
    CityVancouver, BC
    Period7/8/077/12/07

    All Science Journal Classification (ASJC) codes

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

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