Investigation study of performance characteristics of gasoline car engine fueled with hydrogen

Abstract

    Faced with the risk of exhausting fossil fuel sources and the serious environmental pollution emissions of current automotive engines, the study of using hydrogen as an alternative fuel on these engines has scientific and practical significances. This paper presents the results of a simulation study of performance characteristics of hydrogen engines converted from 1NZ-FE automotive gasoline engines on Toyota Vios. The engine does not change the structure but only replaces the indirect fuel injection system with the hydrogen injection system into the intake pipe. Evaluation studies are performed by comparing the indicated mean pressure of the engine when using hydrogen and when using gasoline in full-load mode (fully throttle opening) and comparing the thermal efficiency of the engine at the same speed and indicated mean pressure. Study results show that the indicated mean pressure at engine full load when using hydrogen is reduced by 11% compared to using gasoline while the thermal efficiency increases significantly. At the same speed and indicated mean pressure, the thermal efficiency of hydrogen engines is 3.9% higher than that of the gasoline engine in terms of the value of efficiency and relative increase of 8.8-11.5% of the original engine performance value.