Improving the environmental performance of the diesel engine fueled by methanol and methyl ether of rapeseed oil

Research aimed at reducing harmful emissions from diesel engines into the atmosphere throughout the world is of great current importance for its further introduction in transport industry. The article considers the issues related to the use of renewable alternative fuels – methanol and methyl ether of rapeseed oil, as well as the reduction in nitrogen oxide emissions by applying these fuels. The paper presents the comparative results of experimental findings (the data obtained as the result of bench testing) and theoretical ones. It has been noted that nitrogen oxide emissions (NOx) reduce by 47.4 %, when the engine is operated under nominal conditions, while at maximum torque they reduce by 33.5%.