A long roll of 2 m wide and 0 5 cm thick 1 Mn manganese steel plate coming off a furnace at 820 deg C is to be quenched in an oil bath (c p 2 0 kJ kg middot K) at 45 deg C The metal sheet is moving at a steady velocity of 15 m min, and the oil bath is 9 m long Taking the convection heat transfer co...

A long roll of 2-m-wide and 0.5-cm-thick 1-Mn manganese steel plate coming off a furnace at 820°C

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A long roll of 2-m-wide and 0.5-cm-thick 1-Mn manganese steel plate coming off a furnace at 820°C is to be quenched in an oil bath (c_p= 2.0 kJ/kg·K) at 45°C. The metal sheet is moving at a steady velocity of 15 m/min, and the oil bath is 9 m long. Taking the convection heat transfer coefficient on both sides of the plate to be 860 W/m²·K, determine the temperature of the sheet metal when it leaves the oil bath. Also, determine the required rate of heat removal from the oil to keep its temperature constant at 45°C.

Furnace Steel plate 15 m/min Oil bath, 45°C

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Question Posted: Dec 04, 2018 04:51 AM

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