The harsh environment presented by engines, particularly in the exhaust systems, often necessitates the use of robust and therefore low bandwidth temperature sensors. Consequently, high frequencies are attenuated in the output. One technique for addressing this problem involves measuring the gas temperature using two sensors with different time-constants and mathematically reconstructing the true gas temperature from the resulting signals. Such a technique has been applied in gas turbine, rocket motor and combustion research.A new reconstruction technique based on difference equations has been developed and its effectiveness proven theoretically. The algorithms have been successfully tested and proven on experimental data from a rig that produces cyclic temperature variations. These tests highlighted that the separation of the thermocouple junctions must be very small to ensure that both sensors are subjected to the same gas temperatures. Exhaust gas temperatures were recorded by an array of thermocouples during transient operation of a high performance two-stroke engine. The results show that the increase in bandwidth arising from the dual sensor technique allowed accurate measurement of exhaust gas temperature with relatively robust thermocouples. Finally, an array of very fine thermocouples (12.5 - 50 μm) was used to measure the in-cycle temperature variation in the exhaust.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fast Response Exhaust Gas Temperature Measurement in IC Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Fleck, Bryan (Autor:in) / Irwin, George (Autor:in) / Gaynor, John (Autor:in) / Hung, Peter (Autor:in) / Kenny, Robert (Autor:in) / Kee, Robert J. (Autor:in) / McLoone, Seán (Autor:in)

    Kongress:

    SAE 2006 World Congress & Exhibition ; 2006



    Erscheinungsdatum :

    2006-04-03




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Fast response exhaust gas temperature measurement in internal combustion engines

    Kee,R.J. / Hung,P. / Fleck,B. et al. | Kraftfahrwesen | 2006


    Fast response cycle-to-cycle exhaust gas analysis in S.I. engines

    Pucher, E. / Associazione Tecnica dell'Automobile; Sezione Toscana | British Library Conference Proceedings | 1994


    Fast response NDIR for real-time exhaust measurement

    Miyatake,K. / Ishida,K. / Kohsaka,H. et al. | Kraftfahrwesen | 1990


    Fast Response NDIR for Real-Time Exhaust Measurement

    Kohsaka, Hiroji / Miyatake, Kimio / Ishida, Kozo et al. | SAE Technical Papers | 1990


    EXHAUST FLANGES -- INDUSTRIAL ENGINES

    SAE Technical Papers | 1975