Abstract
One of the ways to reduce the price of biodiesel fuel is to use waste fats of animal and vegetable origin. The objective of this work was to investigate the physical and chemical properties of the fatty acid methyl esters of animal and vegetable origin and their mixtures, to determine their motor characteristics, to choose the optimal composition of biofuel mixtures, and to perform comparative analyses of emissions of harmful components in exhaust gases. It was determined that pure fatty acid methyl esters of animal origin and linseed oil fatty acid methyl esters do not meet standard requirements and cannot be used directly in diesel engines. For diesel engines, three-component mixtures of rapeseed oil methyl esters (RME), pork lard methyl esters (PME) or beef tallow methyl esters (TME), and linseed oil methyl esters (LME) (where the proportion of LME and methyl esters of animal origin is 1:4) may be used as fuel. According to the comparative analyses of motor characteristics of three-component mixtures, ...
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