Effects of fin spacing are studied on the temperature distribution through the finned tube adsorber bed to decrease temperature gradient inside the adsorber bed and minimize adsorber bed to adsorbent mass ratio (AAMR) for vehicle air condition (A/C) applications. Finned tube adsorber beds have shown higher specific cooling power (SCP) and coefficient of performance (COP), and low AAMR among the existing adsorber beds. To this end, two copper heat exchangers with 6.35 ram (1/4") and 9.5 mm (3/8") fin spacing are custom-built and packed with 2-4 mm silica gel beads. A new test bed is built that is equipped with hermetic type K thermocouples. The experimental results show that by decreasing the fin spacing from 9.5 to 6.35 mm, the temperature difference between the fin and adsorbent reduces by 110%. Also, the results show that the effects of using heat exchangers with small fin spacing to reduce temperature gradient inside the adsorber bed is more important in the short cycle times, e.g. 600 sec, than the long cycle times, e.g. 1400 sec. Finally, simultaneous comparison of the temperature gradient between the fins and AAMR vs. fin spacing indicates that the optimum fin spacing for a finned tube heat exchanger packed with 2-4 mm silica gel beads is about 6 mm.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effects of Fin Spacing on Temperature Distribution through Finned Tube Adsorber Beds: Vehicle Air Conditioning Applications


    Contributors:


    Publication date :

    2014


    Size :

    9 Seiten, Bilder, Tabellen, Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    TEMPERATURE ADJUSTER AND ADSORBER

    ARAKI FUYUTO / ANAMI MASAFUMI / NAGASHIMA HISAO | European Patent Office | 2018

    Free access

    Three-dimensional finned tube automobile radiator

    European Patent Office | 2022

    Free access

    Kohlenwasserstoff-Adsorber

    Winterhagen,J. / Corning Glass,Wiesbaden,DE | Automotive engineering | 1996


    Hydrocarbon adsorber technology

    Bause,D. / Bilski,G. / Herald,M. et al. | Automotive engineering | 2007


    Hydrocarbon Adsorber Technology

    Bause, D. / Bilski, G. / Herald, M. et al. | British Library Conference Proceedings | 2007