Evaluations were made of the short-term (5 minute) durability at high temperatures of 85 mm outer diameter ceramic radial turbine rotors made of silicon nitride using an improved hot gas spin test rig.Under no load conditions, the rotors withstood a maximum turbine tip speed (Ut) of 550 m/s without bursting at a turbine inlet gas temperature (TIT) of 1240°C.Under partially loaded conditions, they withstood up to Ut of 500 m/s at TIT of 1280°C without bursting.The test results indicated that the knee point temperature in terms of TIT at which the failure tip speed decreased sharply was about 40°C higher under partially loaded condition than under no load condition.The temperature and stress distribution in the turbine in the hot gas spin test were calculated by the finite element analysis, which supported the dependence of the knee point temperature in terms of TIT at spin test on load condition.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hot-Gas Spin Testing of Ceramic Radial Turbine Rotor at TIT around 1250°C


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1988



    Publication date :

    1988-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Hot-gas spin testing of ceramic radial turbine rotor at TIT around 1250 C

    Kobayashi,Y. / Matsuo,E. / Kato,K. et al. | Automotive engineering | 1988


    Hot-gas spin testing of ceramic radial turbine rotor at TIT 1400 C

    Kobayashi,Y. / Matsuo,E. / Inagaki,T. et al. | Automotive engineering | 1991


    Hot-Gas Spin Testing of Ceramic Radial Turbine Rotor at TIT 1400 C

    Matsuo, Eito / Ozawa, Tadao / Inagaki, Toharu et al. | SAE Technical Papers | 1991


    Hot-Gas Spin Testing of Ceramic Turbine Rotor at TIT 1300° C

    Matsuo, Eito / Matsuhisa, Tadaaki / Ozawa, Tadao et al. | SAE Technical Papers | 1989


    Hot-gas spin testing of ceramic turbine rotor at TIT 1300 C

    Ozawa,T. / Matsuhisa,T. / Kobayashi,Y. et al. | Automotive engineering | 1989