In this work, the possibility to perform a cold-flow simulation as a way to improve the accuracy of the starting conditions for a combustion simulation is examined. Specifically, a dual-fuel marine engine running on methanol/diesel and natural gas/diesel fueling conditions is investigated. Dual-fuel engines can provide a short-term solution to cope with the more stringent emission legislations in the maritime sector. Both natural gas and methanol appear to be interesting alternative fuels that can be used as main fuel in these dual-fuel engines. Nevertheless, it is observed that combustion problems occur at part load using these alternative fuels. Therefore, different methods to increase the combustion efficiency at part load are investigated. Numerical simulations prove to be very suitable hereto, as they are an efficient way to study the effect of different parameters on the combustion characteristics. These simulations often describe the engine with a limited engine geometry neglecting the inlet and exhaust duct. This gives rise to the need to assume certain starting conditions such as the turbulence coming from the intake valve and the homogeneity of the air/fuel mixture entering the combustion chamber. Hence this work presents the execution of a cold-flow simulation taking into account the whole engine geometry that can provide more realistic initialization values for combustion simulations.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Cold Flow Simulation of a Dual-Fuel Engine for Diesel-Natural Gas and Diesel-Methanol Fuelling Conditions


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE WCX Digital Summit ; 2021



    Publication date :

    2021-04-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Results optained by methanol fuelling diesel engine

    Popa,M.G. / Negurescu,N. / Pana,C. et al. | Automotive engineering | 2001


    Dual Fuelling the Truck Diesel with Methanol

    Scott,W.M. / Cummings,D.R. / Ricardo,Shoreham-by-Sea,GB et al. | Automotive engineering | 1977


    Results Obtained by Methanol Fuelling Diesel Engine

    Racovitza, Alexandru / Pana, Constantin / Popa, Marcel Ginu et al. | SAE Technical Papers | 2001


    Emissions and Fuel Economy of a Prechamber Diesel Engine with Natural Gas Dual Fuelling

    Hill, Philip G. / Ding, Xianhua | SAE Technical Papers | 1986


    Emissions and Fuel Economy of a Prechamber Diesel Engine with Natural Gas Dual Fuelling

    Ding,X. / Hill,P.G. / Univ.of British Columbia,US | Automotive engineering | 1986