A 5-cm-diameter cylinder that is 50 cm long is at 55 oC and is to be cooled by crossflow immersion in a 10 oC stream. From Fig. 1.8, if the desired initial cooling rate is 300 W, what should be the stream velocity if the fluid is (a) helium, (b) engine oil? 1.28 When exposed to a moving stream that is 15 oC warmer, a 1mdiameter sphere receives heat at the rate of 600 W. Find the heat transfer coefficient of this flow.

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To solve the given problems we need to use the convective heat transfer equation which relates the h... View the full answer