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Gaseous Oxygen 800 C flows inside a 20mm ID pipe at 150kPa and with a mean velocity of 5m/s. Tube wall is at constant temperature

Gaseous Oxygen 800 C flows inside a 20mm ID pipe at 150kPa and with a mean velocity of 5m/s. Tube wall is at constant temperature of 1270 C. Compute the average heat transfer coefficient. Average properties of Oxygen: (viscosity) = 20Pa.s, k=0.0297W/mK, Cp=1043 J/kgK , R=8314 J/(kmol K), Nu=0.023Re0.8Pr0.3

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