THE CORRELATION OF KINEMATIC VISCOSITY AND MOLECULAR MASS OF FATTY ACID METHYL ESTER WITH GIBBS ENERGY ADDITIVITY METHOD

  • ติณณภพ จุ่มอิ่น Division of Production Technology, Faculty of Science, Chandrakasem Rajabhat University 10900
  • สุภาพรรณ สัจวรรณ Division of Chemistry, Faculty of Science, Chandrakasem Rajabhat University, Bangkok, 10900
  • สุริยา พันธ์โกศล Department of Tool and Die Engineering, Faculty of Science and Technology, Bansomdejchaopraya Rajabhat University, Bangkok, 10600.
  • คนึงนิต ปทุมมาเกษร Division of Production Technology, Faculty of Science, Chandrakasem Rajabhat University 10900
Keywords: Fatty acid methyl ester, Density, Molecular mass, Biodiesel

Abstract

Kinematic viscosity of biodiesel is important physical properties and directly effect on the injection process of the engine. It changes with the chemical composition of fatty acid and temperature. This research aims to correlate between kinematic viscosity and molecular mass of fatty acid methyl ester by Gibbs energy additivity method (GEAM), to use a simple equation for estimating kinetic viscosity. Accordingly, it was found that kinematic viscosity is highly linear relationship to molecular mass. Hence, kinematic viscosity of both fatty acid methyl ester and biodiesels can be estimated by using the same equation in temperature range of 278.15- 373.15 K. The AAD are still accepted. Therefore, the equation is very useful for the rapid application of kinematic viscosity, timesaving and cost reduction of experimental.

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Published
2019-01-10
Section
บทความวิจัย (Research Article)