Study of the effective performance of the diesel engine when working on methanol and methyl ether rapeseed oil

The experience of solving the world’s environmental problems from the use of diesel engines allowed us to develop numerous ways to solve them, including the transfer to work on alternative fuels. The article presents the classification of alternative fuels. The article discusses the use of biofuel for the diesel engine. The use of alternative biofuels with different chemical composition and local conditions leads to the distinctive performance of the diesel engine. Therefore, for the scientific representation of the actual picture of the power and economic indicators of the diesel engine, experimental studies were conducted when it was operated on methanol and methyl ether of rapeseed oil. According to the results of laboratory and bench studies of load working processes of a diesel engine running on methanol and methyl ether of rapeseed oil, important information about hourly and specific fuel consumption, filling coefficients and excess air, effective efficiency and exhaust gas temperature were obtained. At the same time dependences of influence of modes of operation of the diesel engine on characteristics of power and economic indicators are established and their numerical values are defined. The presented research performance and economic performance of diesel engine demonstrate the applicability of methanol and methyl ester of rapeseed oil as an alternative bio-fuel is not only to improve the excellent service standard and performance indicators, but also to reduce the toxicity and smoke opacity of the exhaust gases, since alcohol, with its more simple structure and small size of molecules is one of the determining factors for a more “clean burning” fuel.