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Air passes through a pipe 30 mm in diameter and 1.5 m long. The pipe friction factor is 0.003. At the pipe inlet, the air pressure is 5 bar, the temperature is 30 °C and the Mach number is 2.2. The air discharges from the pipe into a vessel where the pressure is controlled by pumping equipment. Determine: (a) the vessel pressure when the maximum pressure occurs in the pipe, (b) the length of this pipe in which a shock wave may occur, (c) the vessel pressure when a shock wave is 0.2 m from the pipe inlet.

Air passes through a pipe 30 mm in diameter and 1.5 m long. The pipe friction factor is 0.003. At the pipe inlet, the air pressure is 5 bar, the temperature is 30 °C and the Mach number is 2.2. The air discharges from the pipe into a vessel where the pressure is controlled by pumping equipment. Determine: (a) the vessel pressure when the maximum pressure occurs in the pipe, (b) the length of this pipe in which a shock wave may occur, (c) the vessel pressure when a shock wave is 0.2 m from the pipe inlet.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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Air passes through a pipe 30 mm in diameter and 1.5 m long. The pipe friction factor is 0.003. At the pipe inlet, the air pressure is 5 bar, the temperature is 30 °C and the Mach number is 2.2. The air discharges from the pipe into a vessel where the pressure is controlled by pumping cquipment. Determine: (a) the vessel pressure when the maximum pressure occurs in the pipe, (b) the length of this pipe in which a shock wave may occur, (c) the vessel pressure when a shock wave is 0.2 m from the pipe inlet. [Ans: 19.83 bar, 0.898 m, 14.1 bar]
Transcribed Image Text:Air passes through a pipe 30 mm in diameter and 1.5 m long. The pipe friction factor is 0.003. At the pipe inlet, the air pressure is 5 bar, the temperature is 30 °C and the Mach number is 2.2. The air discharges from the pipe into a vessel where the pressure is controlled by pumping cquipment. Determine: (a) the vessel pressure when the maximum pressure occurs in the pipe, (b) the length of this pipe in which a shock wave may occur, (c) the vessel pressure when a shock wave is 0.2 m from the pipe inlet. [Ans: 19.83 bar, 0.898 m, 14.1 bar]
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