A Computational Study Evaluating the In-Cylinder Flow Parameters of a Hydrogen-Fueled Powered-Internal Combustion Engine

This research focuses on analyzing the movement of gases within the cylinder parameters of two-dimensional combustion chambers in hydrogen-fueled four-stroke engines with internal combustion. We employ computational fluid dynamics modeling to study and understand the intricate dynamics involved. CFD simulation was performed using commercial CFD programme. In this investigation, the engine speed was changed from 1000to 3000rpm, with a range comparable Ratio of 0.6 to 1.0 and a crank angle of 720 degree at the level of monitoring condition, the influence of engine speed and ratio of equivalent on flow field features and volumetric efficiency is explored increased engine speed results in a more efficient Hydrogen diffusion techniques and greater uniformity of the mixture of air and fuel structure. The in- cylinder thermodynamics and pressure distribution, and additionally, the symmetry of Hydrogen fractions of mass of different engine speeds, show the flow field characteristics. The collected data demonstrate the highest in- cylinder temperature and pressure attained at engine speed 3000rpm were 650k and 5.8mpa, Respectively, it is clear that engine speed and equivalency ratio are highly connected to volumetric performance. Results from this study reveal that volumetric effectiveness increase exponentially with engine speed while decreasing with equivalency ratio. The findings from this simulation can be utilized to investigate the homogenization of air-fuel mixture structure, ultimately enhancing engine combustion efficiency. Keywords: CFD, hydrogen, internal combustion engine, volumetric performance.