Estimation of gas pipeline blowdown time requires the determination of the pressure-time history for the unsteady discharge of gas through a blowdown stack open to the atmosphere. Computational procedures entail various assumptions whose validity and contributions to the accuracy are often not assessed. This paper discusses the computational models and solution methods and further assesses the significance of the various assumption involved. Volume and pipe models, numerical and analytical methods of solution, effects of stack entrance and friction losses and discharge coefficient are evaluated. The accuracy of a particular model or method of solution is greatly dependent on the fL/D ratio of the pipe section under blowdown. Comparison with field measurements of a straight pipe section enabled evaluation of the above models.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Simulation of gas pipeline blowdown


    Weitere Titelangaben:

    Simulation des Blowdowns von Gasfernleitungen


    Beteiligte:
    Jungowski, W.M. (Autor:in) / Botros, K.K. (Autor:in) / Weiss, M.H. (Autor:in)


    Erscheinungsdatum :

    1989


    Format / Umfang :

    10 Seiten, 7 Bilder, 4 Tabellen, 19 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Boat blowdown device

    SUN CHUAN / LIU XIAOLIN / LU YANG et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Water inlet blowdown

    TIMAR, T. | AIAA | 1981


    Engine Blowdown Device

    Delcuze, Tim / Lossett, Ira / Pearson, Todd et al. | NTRS | 2001


    Blowdown Thrust Profile Prediction

    K. D. Murdock | NTIS | 1990