Interpretation: The pressure drop in the power plant and the power required is to be determined.
Concept introduction: The change in pressure across a pipe due to smoothness or roughness is known as the pressure drop. The pressure drop is given as,
The notations used here are,
The power for the system is given as,
The notations used here are,
P = Power developed by the duct
Q = Flow rate by the duct
The Reynolds number is given as,
The notations used here are,
D = Diameter of duct
Due to presence of elbow, valves, etc, there are some losses in the pipe which are counted in the energy balance equation. The head losses in the valve and elbow is given as,
f = Fanning friction factor
Kf = Loss coefficient in pipe fittings
L = Length of the duct
g = Acceleration due to gravity
The roughness parameter is given as,
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Unit Operations of Chemical Engineering
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