The surface temperature of a 10 m long and a 6-cm-diameter horizontal hot water pipe is 73 ℃. Assume the air temperature to be 27 ℃. Determine the rate of heat loss from the pipe by free convection. Properties of Air are: k = 0.02735 W/m.℃, ν = 1.798*10^-5 m2/s, Pr = 0.7228, β= 1/Tf = 0.003096 K^-1.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
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Problem 5.63P
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The surface temperature of a 10 m long and a 6-cm-diameter horizontal hot water pipe is 73 ℃. Assume the air temperature to be 27 ℃. Determine the rate of heat loss from the pipe by free convection. Properties of Air are: k = 0.02735 W/m.℃, ν = 1.798*10^-5 m2/s, Pr = 0.7228, β= 1/Tf = 0.003096 K^-1.
The surface temperature of a 10 m long and
a 6-cm-diameter horizontal hot water pipe is
73 °C. Assume the air temperature to be 27
°C. Determine the rate of heat loss from the
pipe by free convection. Properties of Air are:
k = 0.02735 W/m.°C, v = 1.798*10^-5 m2/s,
Pr = 0.7228, B= 1/Tf = 0.003096 K^-1.
%3D
Select one:
a. 653 W
b. 575 W
c. 516 W
d. 450 W
Transcribed Image Text:The surface temperature of a 10 m long and a 6-cm-diameter horizontal hot water pipe is 73 °C. Assume the air temperature to be 27 °C. Determine the rate of heat loss from the pipe by free convection. Properties of Air are: k = 0.02735 W/m.°C, v = 1.798*10^-5 m2/s, Pr = 0.7228, B= 1/Tf = 0.003096 K^-1. %3D Select one: a. 653 W b. 575 W c. 516 W d. 450 W
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