[理工] 熱傳學
A long copper rod of diameter 2.0cm is initially at a umiform
temperature 100*c. It is now exposed to an air stream at 20*c
with a heat transfer coefficient of 200 W/M^2。k. How long will
it take for the copper rod to cool to an average temperature of 25*c?
請問這題要怎麼解阿?? 一般看到都是解另一側溫度以及熱通量
這題該如何下手呢?? 謝謝!!
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