Determine the flow rate of air when the manometer deflection is 0.08 m.

 

A venturi meter of throat diameter = 0.05 m is installed in a 0.1 m diameter pipe carrying air with a specific weight of 12 N/m. A U-tube manometer with a fluid of specific gravity, S.G. = 0.8 is connected across the venturi meter as shown in figure below to measure the pressure difference. Assume the air to be incompressible and there are no losses. Determine the flow rate of air when the manometer deflection is 0.08 m. Diameter, D, = 0.1 m flow Diameter, D, = 0.05 0.08 m Manometer fluid S.G=0.8