The effect of methanol combustion with separate feed in a diesel engine on emissions of toxic components

Abstract

The results of the possibility of using methanol as an alternative fuel for tractor diesel engines are presented, as well as solving problems to reduce emissions of nitrogen oxides and other toxic components in exhaust gases. The most effective way to use methanol in internal combustion engines at present is to feed it directly into the cylinder of a diesel engine using a separate feed, which allows replacing up to 80% of oil fuel. The ignition of methanol in this case occurs due to the supply of a pilot portion of diesel fuel. This method, with some changes and additions to the design of a diesel engine, can be implemented on engines already in operation. Power and economic indicators, the content of toxic components in the exhaust gases when operating on diesel fuel and methanol with a separate feed, depending on the load change, were investigated and determined in detail. When replacing diesel fuel with methanol with a separate feed in a diesel engine, it is possible to achieve a 32% reduction in the content of nitrogen oxides in the exhaust gases and 86% on soot.