Experiments, under different conditions, were conducted to evaluate the effect of condensate inundation on condensation heat transfer in tube bundles of marine condensers. Five 15.9 mm. (5/8 in) nominal outside diameter, smooth stainless steel tubes were used in a vertical row to simulate an actual condenser. Tubes were located in an equilaterial triangular array with a spacing-to-diameter ratio of 1.5. Heat transfer performance was determind for each tube in bundle. Data was taken for condensing steam on the outside of each tube at about 21 kPa (3 psia) and at about 101 kPa (14.7 psia). Each tube was cooled by water on the inside at velocities of 0.78 to 6.22 m/s (2.56 ft/s to 20.42 ft/s). The overall heat transfer coefficient was determined directly from experimental data. The inside and outside heat tansfer coefficients were determined using the Wilson plot technique. Observation of condensate flow showe lateral droplet motion along the first three tubes in portions of the condenser under all conditions tested. (DePo)


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    Titel :

    The effect of condensate inundation on condensation heat transfer in tube bundles of marine condensors


    Weitere Titelangaben:

    Die Wirkung der Kondensatueberflutung auf den Kondensations-Waermeuebergang in einem Rohrbuendelkondensator der Marine


    Beteiligte:
    Demirel, J. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1980


    Format / Umfang :

    83 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




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