Design and Fabrication of cross corrugated recuperator fins for a micro gas turbine

Ramamurthy, S and Thennavarajan, S (2008) Design and Fabrication of cross corrugated recuperator fins for a micro gas turbine. In: 6th National Seminar & Exhibition on Aerospace Related Mechanisms(ARMS2008), February 2008, ARDE,Pune.

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    Abstract

    The National Aerospace Laboratories, Bangalore is involved in the development of a 10kW micro gas turbine (MGT). A recuperator is mandatory for an MGT to boost the thermal efficiency of the unit. This paper describes in detail the fabrication process of efficient corrugated fins for deploying in the recuperator of an MGT. The use of corrugated fins in the recuperator of the MGT gives higher effectiveness compared to conventional flat fins. The paper, in detail, describes the various materials used and the heat treatment process used for manufacturing the forming and shearing die sets. All manufacturing accuracy requirements were achieved to get the required fin geometry. The formed corrugated fins were qualified through a series of tests and large number fins were formed for use in the annular recuperator of the Micro Gas Turbine.

    Item Type: Conference or Workshop Item (Lecture)
    Subjects: AERONAUTICS > Aeronautics (General)
    AERONAUTICS > Aircraft Propulsion and Power
    Division/Department: Propulsion Division, Propulsion Division
    Depositing User: Dr S Ramamurthy
    Date Deposited: 12 Aug 2010 15:08
    Last Modified: 12 Aug 2010 15:08
    URI: http://nal-ir.nal.res.in/id/eprint/8955

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