Geometrical configurations of tubes and vortex generators have been optimized in order to improve the hydrothermal characteristics of fin-and-tube heat exchangers. The work is divided into two parts: the first part concerns the effects of the inclination angle of the oval tube ( α = 0 , 10, 20, 30, 40, 50, 60, 70, 80, and 90°); in the second part, the best case resulting from the first part is optimized by using the insertion of flat vortex generators. In this last part, the optimization is investigated by changing the number and position of flat vortex generators on the upper side of the tubes (cases 1 to 7). The obtained results have shown in the first part that the case of α = 20 ° ensures an enhancement in the heat transfer coefficient by 1–4% compared with the baseline case ( α = 0 ° ). In comparison with the case of α = 20 ° , further enhancement in heat transfer coefficient by about 62.53% has been achieved from the insertion of flat vortex generators. An optimal thermal performance factor of 3.58 has been obtained with the new suggested design (referred to case 7 in this paper).


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Enhancement of the Hydrothermal Characteristics of Fin-and-Tube Heat Exchangers by Vortex Generators


    Beteiligte:
    Sahel, Djamel (Autor:in) / Ameur, Houari (Autor:in) / Alem, Karima (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.2021




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Wing Type Vortex Generators for Fin-Tube Heat Exchangers

    Fiebig, M. / Valencia, A. / Mitra, N. K. et al. | British Library Conference Proceedings | 1993


    Wing Type Vortex Generators for Fin-Tube Heat Exchangers

    Fiebig, M. / Valencia, A. / Mitra, N. K. et al. | British Library Conference Proceedings | 1993



    HEAT TRANSFER ENHANCEMENT AND VORTEX INTERACTION OF DELTA WINGLET VORTEX GENERATORS WITH SLOTS

    Lee, Jeryo / Nino, Giovanni / Breidenthal, Robert | TIBKAT | 2021


    Heat Transfer Enhancement and Vortex Interaction of Delta Winglet Vortex Generators with Slots

    Lee, JerYo / Nino, Giovanni / Breidenthal, Robert | AIAA | 2021