Influence of radiative heat transfer on the temperature profile of an aluminum particle involving by gas flame

Ignition and combustion of solid particles are the issues of interest for many industrial applications. The temperature profile is needed in order to determine the initiation of ignition for a fuel particle. In this research, the radiative heat transfer equation of an aluminum particle when passing throw the gas flame, which happens in combustion chambers with high temperature, is added to the energy equation of a particle. By attention to the radiative heat transfer, a nonlinear differential equation is achieved. This nonlinear differential equation can’t be solved analytically. In order to solving the equation, aluminum particle temperature is assumed to have one average in each stage of combustion, thus the equation becomes linear. By considering the boundary conditions for continues temperature profile of particle, the temperature profile can be denoted in three stages of combustion.

کلیدواژه ها:

Heat transfer-Convection-Radiation-Temperature profile