Engineering, 17.04.2020 02:14 dani2997
Air at 10 C enters a 12-cm-diameter and 5-m-long pipe at a rate of 0.065 kg=s. The inner surface of the pipe has a roughness of 0.22 mm, and the pipe is nearly isothermal at 50 C. Determine the rate of heat transfer to air using the Nusselt number relation given by (a) Eq. 19{79 and (b) Eq. 19{84. Evaluate air properties at a bulk mean temperature of 20 C. Is this a good assumption?
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Air at 10 C enters a 12-cm-diameter and 5-m-long pipe at a rate of 0.065 kg=s. The inner surface of...
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