homogeneous mixture of oil globules in water, find the average velocity and density of the mixture leaving through the (30 cm) diameter pipe (c).

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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ANSWER FOUR QUESTIONS ONLY. THE QUESTIONS WITH EQUAL MARKES AND WITH ONE CHART.
Q.1. Water enters the mixing device shown in figure below, at (150 liter/sec) through pipe (A), while oil with
specific gravity (0.8) is forced in at (30 liter/sec) through pipe (B). If the liquids are incompressible and form a
homogeneous mixture of oil globules in water, find the average velocity and density of the mixture leaving through
the (30 cm) diameter pipe (c).
CMixture
Q.2.Water at (20°c) flows upward at (4 m/sec) in a (6 cm) diameter pipe. The pipe length between points (1), (2)
is (5m), and point (2) is (3m) higher. A mercury Manometer, connected between (1) and (2), has a reading
(h=135 mm), with (P1) higher, a- what is the pressure change (p1-p2)?, b- what is the head loss?
= 3m
h- 135 mm
Water
Mury
Q.3. A pump delivers (1500 liter/min) of water against a pressure rise of (270 kPa). Kinetic and potential energy
changes are negligible. If the driving motor supplies (9kW), what is the pump efficiency.
B. Evaluate the pressure drop for the incompressible fluid of the laminar flow through the straight pipe.
Q.4.Kerosene fluid (S.G.=0.88) enters the cylindrical arrangement of the figure below at section (1), at (0.08
N/sec).The (80 mm) diameter plates are (2mm) apart. Assuming steady flow, compute the inlet average velocity
(u1), outlet average velocity (u2) assuming radial flow, and outlet volume flux.
D:BOrmm
h=3mm
D,4 mm
B-Evaluate the head loss for the pipes in series and in parallel, showing the relation with the hydraulic grade line
for each one.
Q.5.A. Oil, with mass density of (900 kg/m3) and kinematic viscosity of (0.00001 m²/sec), flows at (0.2
m /sec) through (500m) long and (200 mm) diameter, cast-Iron pipe with roughness of (0.26mm).
Determine : a- the head loss, b- the pressure drop if the pipe slopes down at (10°) in the flow direction.
GOOD LUCK
Transcribed Image Text:ANSWER FOUR QUESTIONS ONLY. THE QUESTIONS WITH EQUAL MARKES AND WITH ONE CHART. Q.1. Water enters the mixing device shown in figure below, at (150 liter/sec) through pipe (A), while oil with specific gravity (0.8) is forced in at (30 liter/sec) through pipe (B). If the liquids are incompressible and form a homogeneous mixture of oil globules in water, find the average velocity and density of the mixture leaving through the (30 cm) diameter pipe (c). CMixture Q.2.Water at (20°c) flows upward at (4 m/sec) in a (6 cm) diameter pipe. The pipe length between points (1), (2) is (5m), and point (2) is (3m) higher. A mercury Manometer, connected between (1) and (2), has a reading (h=135 mm), with (P1) higher, a- what is the pressure change (p1-p2)?, b- what is the head loss? = 3m h- 135 mm Water Mury Q.3. A pump delivers (1500 liter/min) of water against a pressure rise of (270 kPa). Kinetic and potential energy changes are negligible. If the driving motor supplies (9kW), what is the pump efficiency. B. Evaluate the pressure drop for the incompressible fluid of the laminar flow through the straight pipe. Q.4.Kerosene fluid (S.G.=0.88) enters the cylindrical arrangement of the figure below at section (1), at (0.08 N/sec).The (80 mm) diameter plates are (2mm) apart. Assuming steady flow, compute the inlet average velocity (u1), outlet average velocity (u2) assuming radial flow, and outlet volume flux. D:BOrmm h=3mm D,4 mm B-Evaluate the head loss for the pipes in series and in parallel, showing the relation with the hydraulic grade line for each one. Q.5.A. Oil, with mass density of (900 kg/m3) and kinematic viscosity of (0.00001 m²/sec), flows at (0.2 m /sec) through (500m) long and (200 mm) diameter, cast-Iron pipe with roughness of (0.26mm). Determine : a- the head loss, b- the pressure drop if the pipe slopes down at (10°) in the flow direction. GOOD LUCK
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