Cold air forces convective cooling of a hot object
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The application scenario is as follows: There is a container made of 316 stainless steel, with a total weight of 0.6 tons. Its initial temperature is 800°C, and it needs to be cooled down to 20°C within 4 hours. If cold air at -40°C is used to cool this container, what flow rate of air is required?
Calculate the total calories. Then, applied to air, to what temperature can the air be heated? You probably don’t know either, right?
Let’s calculate this; it’s simple heat transfer – once the heat transfer coefficient is determined, that’s it