Viscosity for palm based biodiesel and petro-diesel Blends

Chemical Engineering

From the study, the pure palm oil based biodiesel is not suitable to use as fuel in existing petro-diesel engine without any modifications. Therefore, the palm based biodiesel is blended with commercially available petro-diesel. Biodiesel is potential alternative for the currently conventional petro-diesel. Blend behavior is analyzed using various properties like density, viscosity, calorific value, refractive index, flash point, cetane number, carbon residue, as per ASTM standard operating procedure. Viscosity is important flow property for pumping of fuel in petro-diesel engine, so it is beneficial to develop correlation for viscosity at entire biodiesel volume fraction range. In present study, viscosity is examined at various temperatures (298 K, 303 K, 313 K, 323K, 333 K) for the different blends of palm based biodiesel to the petro-diesel, For the various proportion of biodiesel B0, B05, B10, B15, B20, B25, B30, B35, B40, B45, B50, B60, B80 and B100. Using Anton Parr Rheometer MCR-52. The data is obtained and studied for estimation of empirical equation. Empirical equation is developed and compared with the equations like Kay equation, Newton equation, Dale-Gladstone equation, Eykman equation which are available in literature and the accuracy of calculated values using these models was calculated by root mean square prediction difference method (RMSPD).

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