Flow sheets have been developed for the VTE boiler cycle, which is a dual-purpose power/desalination system. Computer programs have been written and used to calculate equivalent performance ratios and process data for the VTE boiler and the conventional dual-purpose plant with both extraction and back-pressure schemes of steam supply to the evaporator. High EPTs are obtained for the VTE boiler when the heating system is withdrawn from the turbine at a low pressure, the secondary turbine is designed for high efficiency, the number of effects in the VTE boiler is small and the temperature driving potential is small. The thermal loss to the power cycle is low, with the VTE boiler acting like a moisture separator returning dry, steam to the turbine cycle is low, with the VTE boiler acting like a moisture separator returning dry, steam to the turbine cycle at conditions close to those under which the steam was withdrawn. Cost studies have been carried out for the VTE boiler and the conventional system for 50 MWe/1 mgd. The studies show that the energy requirement of the VTE boiler is less than half that of the conventional plant when both are designed for optimum performance. Further work on the development of economical and efficient low-pressure turbines is necessary in order to realize the potential of the VTE boiler. (DePo)


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    Titel :

    Design study of the VTE boiler cycle for the desalination of sea water. Volume 1. Main report and appendix A


    Weitere Titelangaben:

    Entwurfsstudie fuer den VTE-Kesselbetrieb bei Entsalzung von Meerwasser: 1. Band Hauptbericht und Anhand A


    Beteiligte:
    Kamal, J. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1980


    Format / Umfang :

    213 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




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