The advantages of vegetable oil-based biofuels using in diesel engines have been demonstrated. Methods for determining of optimal composition for mixed fuels containing petroleum diesel fuel and methyl ester of rapeseed oil have been proposed. Optimization calculations of such mixed fuel composition for a type 245.12С diesel engine have been carried out using the proposed methods. It has been shown that a mixture containing 60 % of petroleum diesel fuel and 40 % of methyl ester of rapeseed oil has the best ecological characteristics among the researched mixed biofuels. Even better ecological characteristics are reached when such mixture’s ingredients are regulated according to changes of the engine’s shaft rotation speed and load.

Toxicological properties of diesel engines’ exhaust gases, in particular polycyclic aromatic hydrocarbons, as well as diesel engines’ exhaust gases composition, toxicity assessment technique for exhaust gases of diesel engines working at different types of fuel have been presented. Advantages related to use in diesels a biological fuel made on basis of vegetable oils have been shown.

Кандидат технических наук, преподаватель кафедры «Английский язык для машиностроительных специальностей», Московский государственный технический университет им. Н. Э. Баумана (МГТУ им. Н. Э. Баумана

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