Effect of Convection Mode on Radiation Heat Transfer Distribution in Domestic Baking Oven

The aim of this study is to analyze on the effect ofradiation heat transfer inside an oven under natural and forcedconvection modes using network representative method. Thisanalysis is important to understand the fundamental principleof heat transfer occur in an oven. Most previous work focusedon conduction and convection process in an oven instead ofradiation which leads to this research. The experiment wasconducted using the baking oven with temperature ranges from180 degree C, 200 degree C and 220 degree C. The oven was pre-heated 10 minutesprior taking the temperature reading for duration of maximum20 minutes. The data collected were recorded in the data logger.Based on these data, analysis on the radiation exchanges thatoccurred inside the oven chamber were performed by thenetwork representative method. The radiation rates of allsurface involved were successfully determined. With thecalculated radiation rate, analysis on the effects of radiationunder natural convection and forced convection modes wereperformed. Based on the temperature profiles and radiationrate patterns, it was proven that the forced convection mode hasmore radiation effect compared to natural convection mode.