Determination of impurities in biof uels with using a particle size analyzer

Abstract

One of the qualitative parameter of biof uel is purity. Measurement of purity of biof uels is very important. The reason is that the number and size of particles influence an engine life. However number and size of various particles have influence on the hydrodynamics and rheologic properties. In the fi rst part of the paper is introduced the description of tested fuels, the method of measuring of number particles and size particles with use particle size analyzer Laser-Net Fines-C (LNF-C). In the second part of this paper results of measurements are stated. The results are compared and evaluated. Two kinds of fuels was tested - biof uels and traditional fuels. Pure rapeseed methyl ester and various mixtures of traditional diesels and rapeseed methyl ester represented Biof uels. Bioethanol was the next tested biof uels. Traditional diesels were the second group of tested fuels.