Answered: determine total head loss of the system…

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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FLUID POWER TECHNOLOGY

5) Figure 2 below shows the hydraulic system pumping oil (SG = 0.8) from a reservoir to a piston. The system consists of 13.72-m long 38-mm diameter cast iron pipe throughout, two 90º flange long radius elbows, a fully open globe valve and a sharp exit into the piston. K value is tabulated inside Table 1. If p1 = 7 bars, determine total head loss of the system and gauge pressure p2 in order to deliver water at 2 liter/s. Take kinematic viscosity of oil, = 1 × 10-4 m2/s.

P1
3.05 m
90° ELBOW
P2
1.52 m
3.05 m T
6.10 m
LOAD FORCE
90° ELBOW
GLOBE VALVE
(WIDE OPEN)
Figure 2
Table 1
Components
Loss coefficient value, K
Sharp entrance
0.5
Well rounded entrance
0.03
Sharp exit
Well rounded exit
1.0
1.0
45° elbow
0.2
90° elbow
0.3
Gate valve - fully opened
Gate valve - 50% opened
Globe valve - fully opened
Globe valve - 50% opened
13
17
8.5
12

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