Calorific value and density for Palm based biodiesel and Petro-diesel Blends

Chemical Engineering

For the study, the pure palm oil based biodiesel is not suitable to use as fuel in petro-diesel engine. 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. Density is important flow property for pumping of fuel in petro-diesel engine, so it is beneficial to develop correlation for density at entire biodiesel volume fraction range. In present study, density is examined at various temperatures (298 K, 308 K, 313 K, 318, 323 K) for the different blends of palm based biodiesel to the petro-diesel using specific gravity bottle. The data is obtained and studied for estimation of empirical equation. Empirical equation is developed and compared with the equation like kay equation, newton equation, Dale-Gladstone equation, eykman equation these equations are available in literature and the accuracy of calculated values using these models was calculated by root mean square prediction difference method (RMSPD). The calorific value is determined for the various blends of palm based biodiesel and petro-diesel. For the various proportion of biodiesel B0, B05, B10, B15, B20, B25, B30, B35, B40, B45, B50, B55, B60, B65, B70, B75, B80, B85, B90, B95 and B100. The empirical equation is developed for the calorific value and compared with the literature equations and calculated the accuracy of calculated values using root mean square prediction difference method (RMSPD).

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