Thermodynamic cycle calculations were done for a propfan and turbofan propulsion system for a twin engine, medium range transportation aircraft to show the differences in specific fuel consumption. Common definitions for the efficiencies of propeller and fan and common handling in one cycle program were used. Results show 15% to 20% specific fuel consumption improvement, which depends on the mastering of interference between propeller stream and bearing surface.


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    Title :

    Comparison of a Propfan/Turbofan Engine by Thermodynamic Cycle Calculations


    Contributors:

    Publication date :

    1982


    Size :

    47 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English








    Propfan engine

    STRETTON RICHARD GORDON / HOWARTH NICHOLAS | European Patent Office | 2018

    Free access