Air flows through a 10 cm internal diameter tube at the rate of 75 kg/hr. Measurements indicate that the temperature of air is 325 K while the tube wall temperature is 375 K. The heat transfer rate for one meter length in the range of this point is Given data: Thermo physical properties of air at 325 K k = 0.02792 W/mk H-1.967 x 10-5 kg/ms Pr= 0.713 Nu = 3.66 for laminar Nu = 0.023 Re.8 p0.4 for turbulent,

Elements Of Electromagnetics
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Air flows through a 10 cm internal diameter tube at the rate of 75 kg/hr. Measurements indicate that the temperature of air is 325 K while
the tube wall temperature is 375 K. The heat transfer rate for one meter length in the range of this point is
Given data: Thermo physical properties of air at 325 K
k = 0.02792 W/mk
u = 1.967 x 10-5 kg/ms
Pr = 0.713
Nu = 3.66 for laminar
Nu = 0.023 Re8 P4 for turbulent.
Transcribed Image Text:Air flows through a 10 cm internal diameter tube at the rate of 75 kg/hr. Measurements indicate that the temperature of air is 325 K while the tube wall temperature is 375 K. The heat transfer rate for one meter length in the range of this point is Given data: Thermo physical properties of air at 325 K k = 0.02792 W/mk u = 1.967 x 10-5 kg/ms Pr = 0.713 Nu = 3.66 for laminar Nu = 0.023 Re8 P4 for turbulent.
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