An experimental and theoretical investigation of annular steam-water flow in tubes and annuli at 30 to 90 bar

J. Würtz

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    Abstract

    Measurements are presented of film flow rates, pressure gradients, film thicknesses, wave frequencies and velocities, and burnout heat fluxes in one annular and two tubular geometries. The more than 250 experiments were performed with steam-water at 30 to 90 bar under both adiabatic and diabatic conditions. On the basis of these data a film-flow model for the prediction of burnout is set up. General film roughness and entrainment correlations are derived from the adiabatic, equilibrium data. The capability of the model is demonstrated
    by several comparisons between calculations and measurements.
    Original languageEnglish
    Place of PublicationRoskilde, Denmark
    PublisherDanmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi
    Number of pages141
    ISBN (Print)87-550-0593-4
    Publication statusPublished - 1978
    SeriesDenmark. Forskningscenter Risoe. Risoe-R
    Number372
    ISSN0106-2840

    Keywords

    • Risø-R-372
    • Risø-372
    • Risø report 372
    • Risø-R-372(EN)

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