Water flows inside a tube 45 mm in diameter and 3.2 m long at a velocity
of 0.78 m/s. Determine the heat transfer co-efficient and the rate of heat transfer if the mean
water temperature is 50°C and the wall is isothermal at 70°C. For water at 50°C take k = 0.66 W/
mK, ν = 0.478 × 10–6 m2/s and Prandtl number = 2.98
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