A Venturi-meter and a mercury filled U-tube manometer is used to measure the flow of water...

 

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A Venturi-meter and a mercury filled U-tube manometer is used to measure the flow of water which flows upwards in an inclined pipe with diameter of 0.12 m (figure 1). The Venturi has a throat of 80 mm. The pressure connection at the throat is z₂=420 mm above that at the Venturi inlet. The coefficient of discharge for the Venturi flow meter is 0.92 and the distances h1 and h2 are 580 mm and 460 mm, respectively. Determine the actual mass flow rate of the water. Take the relative density of mercury to water as 13.6 and the acceleration due to gravity to be 9.81 m/s². Number Units h₁ t H Figure 1: Inclined venturi flow meter to measure liquid velocity in a pipe. A Venturi-meter and a mercury filled U-tube manometer is used to measure the flow of water which flows upwards in an inclined pipe with diameter of 0.12 m (figure 1). The Venturi has a throat of 80 mm. The pressure connection at the throat is z₂=420 mm above that at the Venturi inlet. The coefficient of discharge for the Venturi flow meter is 0.92 and the distances h1 and h2 are 580 mm and 460 mm, respectively. Determine the actual mass flow rate of the water. Take the relative density of mercury to water as 13.6 and the acceleration due to gravity to be 9.81 m/s². Number Units h₁ t H Figure 1: Inclined venturi flow meter to measure liquid velocity in a pipe.

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