Development and study of ways to extend the multifuel capability of ICE

Abstract

In the recent years, no considerable growth of use of alternative fuels by vehicle fleets has been observed, in spite of the availability of a vast volume of research data and recommendations. The identified reason is the reluctance of manufacturers to produce ICE modifications for operation with fuels different from DF. The problem could be solved by development and study of ways to extend the multifuel capability of ICE. Basic ways were identified to extend the limits of the usability of alternative fuels with different physical and chemical properties. Regressions were suggested allowing for determining the chemical nature of additives and their degree of influence on the decreasing of the kinematic viscosity of the fuel. A mathematical solution was obtained describing conditions of physical existence of a fuel emulsion. An analysis of a number of combustion inhibitors was carried out. A mechanism of inhibition of additives of new generation was analyzed. Subcaloric fuel combustion process (generator gas) was studied, ways to improve its efficiency were suggested. Based on the theoretical analysis and experimental data, generalized assessment criteria were formulated for the usability limits of non-conventional energy materials. The obtained results could help to essentially extend the fuel base of engines in real operation environments.