This paper deals with an application of advanced simulation methods to the modelling of Duel-Fuelled engines (Hydrogen/Diesel) in which the premixed Hydrogen gas is ignited by the combustion flame initiated by a diesel spray. The model consists of a diesel auto-ignition model and a modified combustion model. The influence of main engine parameters i.e., injection advance, and various percentages of mixing of hydrogen with diesel on rate of heat release, flame propagation and NOx formation has been investigated. Experimental results were compared with modelled values. Computational Fluid Dynamics (CFD) analysis was carried out and limitations of the model were studied.
Keywords: dual fuel engines, hydrogen, diesel, modelling, simulation, CFD analysis, computational fluid dynamics, premixed combustion, emission analysis, vehicle emissions, auto-ignition models, combustion models, heat release, flame propagation