Notes Chemical Engineering Guides-62.pdf - 106 3...

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3 Mathematical Modelling Based on Transport Phenomenamethod as far as time is concerned. Before closing these observations concerningheating with an inductor, we show that, in this case, the radial heat flow is perma-nently oriented from the stick to the adjacent medium. On the contrary, for thecase of an electric oven heating, the direction of the heat flow is from the outsideto the inside in the region of the stick covered by the oven.The second simulationhas been oriented to show the effect of an external flowaround the stick on the thermal dynamics. It is known that the external flowaround an entity, where a transport property is occurring, has a direct action onthe coefficient of transfer of the property which characterizes the passing throughthe interface [3.3, 3.4, 3.45, 3.46]. The data obtained with the simulator when wechange the values of the heat transfer coefficient from the stick to the external me-dium allows a quantitative estimation of the effect of this parameter. For this sim-

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