It is shown that an indirect cooling system based on the venturi principle enhances the convective heat transfer many-folds as compared to a simple pipe-flow. Such enhancement results from the acceleration of the coolant in a variable cross-section annulus, created by a concentrically placed bi-conical obstruction inside a circular pipe. The heat-source is placed on the outer-wall of the pipe, at a location corresponding to the venturi-throat. The effect of different pipe materials on the thermal performance of the new cooling system are explored. Numerical results are presented for six Reynolds numbers (based on the pipe diameter) covering the range of about 3200 to 32000, and for a single, circular, ring-type heat-load of 273.5 W / cm2. The coolant used is water, at an inlet temperature of 20 °C. The materials considered are copper, aluminium and stainless-steel (AISI 304). It has been found that even though stainless-steel gives heat transfer rates better than copper and aluminium, that gain is outweighed by the undesirably high temperatures at the heat-sources, thereby making it an unsuitable wall-material for indirect cooling of high heat-flux electronics using the venturi system.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Parametric Study of the Conjugate Heat Transfer Problem in an Axisymmetric Venturi-type Cooling System


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Leland, J.E. (Autor:in) / Ponnappan, R. (Autor:in) / Shanmugasundaram, V. (Autor:in)

    Kongress:

    Aerospace Atlantic Conference & Exposition ; 1995



    Erscheinungsdatum :

    01.05.1995




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A Parametric Study of the Conjugate Heat Transfer Problem in an Axisymmetric Venturi-type Cooling System

    Shanmugasundaram, V. / Ponnappan, R. / Leland, J. E. et al. | British Library Conference Proceedings | 1995


    Conjugate heat transfer in a Venturi-type cooling system - Numerical and experimental studies

    Shanmugasundaram, V / Ponnappan, R / Leland, J et al. | AIAA | 1995


    Effect of geometry on the conjugate heat transfer in a venturi-based cooling system

    Shanmugasundaram, V. / Leland, J. / Beam, J. et al. | AIAA | 1996


    Parametric Study of the Swirler/Venturi Spray Injectors

    Kyoung-Su Im / Hoisan Kim / Ming-Chia Lai et al. | AIAA | 2001


    Conjugate Heat Transfer Study of Innovative Pin-Fin Cooling Configurations

    Hossain, Mohammad Arif / Asar, Munevver E. / Ameri, Ali et al. | AIAA | 2020