The purpose of this study was to develop a one-dimensional (1-D) model for predicting the amount of unburned hydrocarbons (UHC) due to flame extinction by quenching close to the combustion chamber wall in a gasoline engine. The local Reynolds number was used to predict the thickness of the thermal boundary layer developed by in-cylinder flow caused by high speed charge passing through the intake valves. The effect of different intake port geometries, including moderate- and high-tumble types, on the thickness of the thermal boundary layer was examined. The flame extinction model was integrated into a 1-D gasoline engine model. The amount of UHC predicted by the model was compared with experimental results by using a single-cylinder gasoline engine under various engine operating conditions. The numerical values were found to be in reasonable agreement with the measured data. A methodology for controlling UHC was also proposed in the final section.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Predicting Unburned Hydrocarbons in the Thermal Boundary Layer Close to the Combustion-chamber Wall in a Gasoline Engine Using a 1-D Model


    Weitere Titelangaben:

    Int.J Automot. Technol.


    Beteiligte:
    Yoshimura, Kei (Autor:in) / Yahata, Hajime (Autor:in) / Tanamachi, Shoya (Autor:in) / Yamaguchi, Kyohei (Autor:in) / Sok, Ratnak (Autor:in) / Kusaka, Jin (Autor:in) / Tokuhara, Satoshi (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2022-02-01


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Some factors affecting unburned hydrocarbons in combustion products

    Shinn, J.N. | Engineering Index Backfile | 1957


    Fast response FID measurement of unburned hydrocarbons in the exhaust port of a firing gasoline engine

    Finlay,I.C. / Boam,D.J. / Bingham,J.F. et al. | Kraftfahrwesen | 1990


    Gasoline engine combustion - the Nebula combustion chamber

    De Boer,C.D. / Grigg,D.W. / Ricardo Consulting,GB | Kraftfahrwesen | 1988


    Gasoline Engine Combustion — The Nebula Combustion Chamber

    de Boer, C. D. / Grigg, D. W. | SAE Technical Papers | 1988