Modelling and Simulation of the Performance and Combustion Characteristics of a Locomotive Diesel Engine Operating on a Diesel–LNG Mixture
Imantas Lipskis,
Saugirdas Pukalskas,
Paweł Droździel,
Dalibor Barta,
Vidas Žuraulis,
Robertas Pečeliūnas
Affiliations
Imantas Lipskis
Department of Automobile Engineering, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičius g. 28, LT-03224 Vilnius, Lithuania
Saugirdas Pukalskas
Department of Automobile Engineering, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičius g. 28, LT-03224 Vilnius, Lithuania
Paweł Droździel
Department of Sustainable Transport and Powertrains, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka Str. 36, 20-618 Lublin, Poland
Dalibor Barta
Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina, Univerzitna 8215/1, 010 26 Žilina, Slovakia
Vidas Žuraulis
Department of Automobile Engineering, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičius g. 28, LT-03224 Vilnius, Lithuania
Robertas Pečeliūnas
Department of Automobile Engineering, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičius g. 28, LT-03224 Vilnius, Lithuania
The article describes a compression-ignition engine working with a dual-fuel system installed in diesel locomotive TEP70 BS. The model of the locomotive engine has been created applying AVL BOOST and Diesel RK software and engine performance simulations. Combustion characteristics have been identified employing the mixtures of different fuels. The paper compares ecological (CO2, NOx, PM) and energy (in-cylinder pressure, temperature and the rate of heat release (ROHR)) indicators of a diesel and fuel mixtures-driven locomotive. The performed simulation has shown that different fuel proportions increased methane content and decreased diesel content in the fuel mixture, as well as causing higher in-cylinder pressure and ROHR; however, in-cylinder temperature dropped. CO2, NOx and PM emissions decrease in all cases thus raising methane and reducing diesel content in the fuel mixture.
