Abstract
The present article studies the working principle of a simple stove burner. The main objective of the work is to analyse the impact of the burner geometry on the flame obtained, using propane as fuel. Therefore, a mathematical model was developed based on the fluid mechanics equations for reactive flows. The model was validated through spectroscopy analysis, temperature measurement and PIV. It was concluded that the equivalence ratio of the mixture can be increased either by increasing the thermal conductivity of the mixing tube, or its length, or its thickness, or even by choosing a sharp inlet instead of a rounded one. The “snow-ball effect” (increase of the equivalence ratio with the increase of the temperature of the system) was also mathematically and experimentally proved and conclusions were drawn regarding the conditions in which this effect is relevant.
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