Course Solutions Uncategorized (Solved) : Air 1 Atm Enters 5 Cm Diameter Circular Tube 20 C Average Velocity 135m S Tube Wall Mainta Q33161307 . . . .

(Solved) : Air 1 Atm Enters 5 Cm Diameter Circular Tube 20 C Average Velocity 135m S Tube Wall Mainta Q33161307 . . . .

 

Air (1 atm) enters a 5-cm-diameter circular tube at 20°C with an average velocity of 13.5m/s. The tube wall is maintained at a constant surface temperature of 160°C and the outlet mean temperature is 80°C. Estimate the length of the tube. The properties of air at TbTe)/2 50°C are: p 1007 J/kg-K k 0.02735 W/m.K p 1.092 kg/m3 H 1.963 X 10-5 kg/m-s v 1.798 X 10-5 m2/s, and Pr 0.7228 The length of the tube is m.

Air (1 atm) enters a 5-cm-diameter circular tube at 20°C with an average velocity of 13.5m/s. The tube wall

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