A hydraulic pump is shown in the following Figure, flow rate is 25 L/min, the diameter of suction pipe is 30mm, and the suction port of pump is higher than the oil surface of tank, h=300mm. Kinematic viscosity of oil is 30×10-“m²/s, density of oil is 900kg/m³. If only the pressure loss along the straight suction pipe with length 400mm is considered 75 (2= - a = 2, g=9.8) R. (1) Calculate the flow velocity in the suction pipe; (2) Judge the flow state in suction pipe; (3) Calculate the pressure loss along the straight suction pipe; (4) Calculate the vacuum degree of suction port.
A hydraulic pump is shown in the following Figure, flow rate is 25 L/min, the diameter of suction pipe is 30mm, and the suction port of pump is higher than the oil surface of tank, h=300mm. Kinematic viscosity of oil is 30×10-“m²/s, density of oil is 900kg/m³. If only the pressure loss along the straight suction pipe with length 400mm is considered 75 (2= - a = 2, g=9.8) R. (1) Calculate the flow velocity in the suction pipe; (2) Judge the flow state in suction pipe; (3) Calculate the pressure loss along the straight suction pipe; (4) Calculate the vacuum degree of suction port.
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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Transcribed Image Text:A hydraulic pump is shown in the following Figure, flow rate is 25 L/min, the diameter
of suction pipe is 30mm, and the suction port of pump is higher than the oil surface of
tank, h=300mm. Kinematic viscosity of oil is 30x10-“m²/s, density of oil is 900kg/m³.
If only the pressure loss along the straight suction pipe with length 400mm is considered
75
(1 =
a = 2, g=9.8)
R.
(1) Calculate the flow velocity in the suction pipe;
(2) Judge the flow state in suction pipe;
(3) Calculate the pressure loss along the straight suction pipe;
(4) Calculate the vacuum degree of suction port.
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