(Solution) - Calculate the water side heat transfer coefficient and the coola -(2025 Original AI-Free Solution)

Paper Details

Calculate the water side heat transfer coefficient and the coolant pressure drop per unit length of tube for the core of a compact air-to-water intercooler for a 5,000 hp gas turbine plant. The water flows inside of a flattened aluminum tube having the cross-section shown below.

The inside diameter of the tube before it was flattened was 0.485 in. (1.23 cm) with a wall thickness (t) of 0.01 in. (0.025 cm). The water enters the tube at 60°F (15.6°C) and leaves at 80°F (26.7°C) at a velocity of 4.4 ft/s (1.34 m/s).
GIVEN
Water flow in a flattened tube as shown above
Inlet temperature (Ti) = 15.6°C
Outlet temperature (To) = 26.7°C
Water velocity (V) = 1.34 m/s
ASSUMPTIONS
Steady state
Fully developedflow