Study of Thermochemical and Transport Properties of Biodiesel from <italic>Azadirachta indica</italic>

Abstract

<div class="section abstract"><div class="htmlview paragraph">This study proposes an investigation of the thermochemical and transport properties of biodiesel from <i>Azadirachta indica</i> (neem biodiesel). These properties are important in the CFD modeling process of hydrocarbon combustion. Two groups of properties are taken into account: on the one hand, the primary properties such as critical pressure, critical volume, critical temperature, boiling temperature, and normal melting point; on the other hand, secondary properties such as vapor pressure, liquid viscosity, latent heat of vaporization, liquid mass density, and surface tension. The group contribution model takes into account second-order groups used for the predictive proposition of primary properties. The secondary properties are generated by matrix programming of the available data. The primary properties thus determined are used as a digital database. After setting the boundary conditions, matrix writings are developed in the MATLAB code. The rendering obtained is exported in the form of a characteristic point gradient at the dependent parameter studied. The values obtained are as follows: 12.27 bar, 1111.39 cm<sup>3</sup>/mol, 752.72 bar, 587.35 K, and 334.70 K representing, respectively, the critical pressure, the critical volume, the critical temperature, the boiling temperature, and the normal melting point.</div></div>