The National Transport University Bulletin

Abstract

Recently, there has been a significant increase in the prices of petroleum-based fuels, particularly gasoline. This negative factor becomes a cause of the search for methods of reducing fuel consumption by the engine. After the combustion of traditional fuels, furthermore, harmful pollutants are released. That was the cause of the attempts to adapt traditional internal combustion engines (ICE) to work on alternative fuels without significant design changes. Liquefied petroleum gas (LPG) can be used as an alternative fuel for spark ignition engines. Researches show that pollutant emissions from vehicles running on LPG are lower in comparison to gasoline. However, there is a marked decrease in engine power while operating on liquefied petroleum gas. This article considers studies about the use of a hydrogen-containing gas (H2/O2) addition to improve the performance of a spark ignition internal combustion engines (ICE) running on liquefied petroleum gas. It is shown that the environmental performance of internal combustion engines improves when using LPG with the addition of hydrogen-containing gas is used. Emission levels of CmHn, NOx and CO2 are reduced slightly in comparison to gasoline. It is shown that the hydrogen-containing gas addition has a positive effect on engine power when operating on LPG, but this aspect requires more research in the future. Despite the sufficient advantages of using LPG with the addition of hydrogen-containing gas to the air charge over the gasoline, the economic feasibility of using a H2/O2 generation plant has not been fully considered.

Keywords: