A 0.6-cm-diameter mild steel rod at 38?C is suddenly immersed in a liquid at 93?C with hc

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A 0.6-cm-diameter mild steel rod at 38?C is suddenly immersed in a liquid at 93?C with hc = 110W/(m2 K). Determine the time required for the rod to warm to 88?C.GIVENA mild steel rod is suddenly immersed in a liquidRod diameter (D) = 0.6 cm = 0.006 mInitial temperature of the rod (To) = 38?CLiquid temperature (T??) = 93?CHeat transfer coefficient ( hc ) = 113.5 W/(m2 K)ASSUMPTIONSThe rod is 1% carbon steelConstant thermal conductivityEnd effects are negligibleThe rod is very long compared to its diameterThere is radial conduction only in therod

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Principles of heat transfer

ISBN: 978-0495667704

7th Edition

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

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