To develop and find the effect of combination of four cycle design variables that minimizes the specific fuel consumption (sfc) of a turbofan engine.

    Design/methodology/approach

    After choosing the four variables, namely bypass ratio (B), fan pressure ratio, overall pressure ratio, and turbine inlet temperature (T04), first the sfc was minimized without a minimum thrust constraint. Then, a minimum specific thrust constraint was introduced.

    Findings

    The unconstrained-specific thrust is a two-dimensional optimization problem, whereas the specific thrust constrained problem was found to be a three-dimensional one.

    Research limitations/implications

    The variables B and ï are limiting factors to further improvement, as set by their maximum practical values, whereas the other two variables are to be optimized.

    Practical implications

    A very useful work, in which numerical optimization program was developed, for a turbofan cycle and could be extended to other cycles.

    Originality/value

    This paper offers a great help to those intending to optimize certain cycles with a number of variables.


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    Titel :

    Thermodynamic optimization of the turbofan cycle


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2006-11-01


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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    SCHWEIGER, F. | AIAA | 1987


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