What length of tube is required

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Reference no: EM131282231

1. Liquid sodium is to be heated from 500 K to 600 K by passing it at a flow rate of 5.0 kg/s through a 5-cm-ID tube whose surface is maintained at 620 K. What length of tube is required?

2. A 2.54-cm-OD, 1.9-cm-ID steel pipe carries dry air at a velocity of 7.6 m/s and a temperature of -7°C. Ambient air is at 21°C and has a dew point of 10°C. How much insulation with a conductivity of 0.18 W/mK is needed to prevent condensation on the exterior of the insulation if hq = 2.4W/m on the outside?

Reference no: EM131282231

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