Question 4 (20 points): A- If a cylindrical shaped rod at 45 C is exchanging heat with heated air at surrounding temperature of 300 C. What would be direction of heat transfer [(rode to air) or (air to rode)]? B- Which "Area" should you consider for a cylindrical shaped rod [cross sectional area or surface area] when you are evaluating for convection/conduction heat transfer? Also, please write down the specific formula of Area for each? a. Convection heat transfer -> b. Conduction heat transfer ->
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Heat always flows from a higher temperature to a lower temperature. In this case, the rod is at 45°C, while the surrounding air is at 300°C. Therefore, heat will transfer from the air to the rod. Show more…
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