Analysis of Energy Distribution and Lubrication Characteristics in an Internal Combustion Engine Fueled with Percentages of Alternative Gas

In the current investigation, the influence of hydrogen gas on the energy and exergetic distribution and the properties of the lubricating oil in gasoline engines were studied. For the development of the investigation, four loads (25%, 50%, 75%, and 100%) and three percentages of hydrogen gas injection (5%, 10%, and 15%) were defined. The mixture of gasoline and hydrogen gas leads to an improvement in the combustion process of the engine. It was found that the injection of 15% hydrogen in the gasoline engine causes an increase of 5.09% and 5.70% in energy and exergetic efficiency. Additionally, a reduction in brake specific fuel consumption was demonstrated by 0.43%, 0.86%, and 1.58% with mixtures G(100%) + H2(5%), G(100%) +H2(10%), and G(100%) + H2(15%) compared to pure gasoline. The mixture of gasoline and hydrogen gas allows to the improvement of the combustion characteristics of the engine. However, hydrogen injection produces negative effects on the lubricating oil system, such as the increased presence of wear metal debris and decreased lubricant viscosity. The foregoing implies a shortening in the useful life of the lubricating oil and an increased risk of wear on engine parts.