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Modelling of Turbocharger heat transfer under stationary and transient conditions


Reference:

Burke, R. D., Olmeda, P., Arnau, F. and Rayes-Belmonte, M., 2014. Modelling of Turbocharger heat transfer under stationary and transient conditions. In: 11th International Conference on Turbochargers and Turbocharging, 2014-05-13 - 2014-05-14.

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    Abstract

    A lumped capacity heat transfer model has been developed and compared to measurements from a turbocharger operating on a 2.2L Diesel engine under steady and transient conditions ranging from 1000-3000rpm and 2-17bar BMEP. The model parameters have been estimated based on similar devices and this study quantifies the errors associated with this approach. Turbine outlet gas temperature prediction was improved with RMSE reduced from 29.5oC to 13oC. A sensitivity study showed the parameters of the heat transfer model influence gas temperatures by only ±4oC but housing temperatures by up to 80oC. Transient simulations showed how errors in the thermal capacitance also lead to errors. This study shows the importance of undertaking a full thermal characterisation and the need for accurate adiabatic maps in turbocharger simulations.

    Details

    Item Type Conference or Workshop Items (Paper)
    CreatorsBurke, R. D., Olmeda, P., Arnau, F. and Rayes-Belmonte, M.
    DepartmentsFaculty of Engineering & Design > Mechanical Engineering
    Research CentresPowertrain & Vehicle Research Centre
    EPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
    RefereedYes
    StatusPublished
    ID Code38984

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