Air is heated to 2atm and 227 °C while circulating through a 3.0 cm diameter tube at a speed of 10 m/s. Calculate the heat transferred per unit length of tube if a constant heat flow condition is maintained in the wall, the temperature of the wall being 25

Air is heated to 2atm and 227 °C while circulating through a 3.0 cm diameter tube at a speed of 10 m/s. Calculate the heat transferred per unit length of tube if a constant heat flow condition is maintained in the wall, the temperature of the wall being 25

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.16P

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Question

Asap,

Air is heated to 2atm and 227 °C while
circulating through a 3.0 cm diameter tube at
a speed of 10 m/s. Calculate the heat
transferred per unit length of tube if a
constant heat flow condition is maintained in
the wall, the temperature of the wall being 25
°C higher than the temperature of the air
throughout the entire tube. How much would
the average temperature increase in 3m
length of pipe?

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