ABSTRACT

This paper represents a methodology for measuring heat flux of jet flame impinging on furnace wall and its temperature by using a new heat flux sensor. Impinging flame jet has a significant portion in a lot of applications as it enhances heat transfer by convection. It also increases productivity and reduces fuel consumption in addition to reduce emission pollutants. Assessment of heat transfer characteristics is crucial in industrial furnaces which are used in melting scrap metals, flame welding and shaping glass. Because of high temperatures and problems encountered in flame measurement due to thermal equilibrium and free radicals resulted from combustion, an alternative heat flux sensor is used to sustain these severe conditions. The designed heat flux sensor and its governed equations will be descried. Calibration method is applied on the designed heat flux sensor where, heat flux measurement compared to constant heat flux for a certain temperature difference.