Task 1: Dam Butterfly Control Valve The installation features a dam, where a butterfly valve is used to control the flow through the discharge piping system, as shown in the below figure. Water butter fly valve shaft Air at atmospheric pressure 30° 3 m diameter Figure 1: Schematic for task 1. This butterfly valve that have 3 m-diameter is used to control the flow in a 3 m-diameter outlet pipe in a dam. In the position shown, it is closed. The valve is supported by a horizontal shaft through its center. For the case of h = 10 m head. a. Describe the forces acting on the two halves of the valve due to the water head. b. Determine the position of the center of pressure on each half of the valve. c. Calculate the shear force acting on the valve-shaft. HTÜ. Page 5 of 10 جامعة الحسين التقنية Al Hussein Technical University d. Calculate the torque that would have to be applied to the valve-shaft to hold the valve in the closed position. e. Calculate and plot the required retaining torque function of the water head.

Task 1: Dam Butterfly Control Valve The installation features a dam, where a butterfly valve is used to control the flow through the discharge piping system, as shown in the below figure. Water butter fly valve shaft Air at atmospheric pressure 30° 3 m diameter Figure 1: Schematic for task 1. This butterfly valve that have 3 m-diameter is used to control the flow in a 3 m-diameter outlet pipe in a dam. In the position shown, it is closed. The valve is supported by a horizontal shaft through its center. For the case of h = 10 m head. a. Describe the forces acting on the two halves of the valve due to the water head. b. Determine the position of the center of pressure on each half of the valve. c. Calculate the shear force acting on the valve-shaft. HTÜ. Page 5 of 10 جامعة الحسين التقنية Al Hussein Technical University d. Calculate the torque that would have to be applied to the valve-shaft to hold the valve in the closed position. e. Calculate and plot the required retaining torque function of the water head.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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