Mechanical Engineering > GATE 2025 > Convection Heat Transfer
Water enters a tube of diameter, D = 60 mm with mass flow rate of 0.01 kg s-1 as shown in the figure below. The inlet mean temperature is Tm,i=293 K and the uniform heat flux at the surface of the tube is 2000 W m-2. For the exit mean temperature of Tm,o=353 K, the length of the tube, L is ______ m (rounded off to 1 decimal place).
Use the specific heat of water as 4181 Jkg-1 K-1.
Use the specific heat of water as 4181 Jkg-1 K-1.
Correct : 1.9
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