Problem 1. Gas flows through a pipe whose diameter gradually decreases from 300 mm at section A to 175 mm at section B. The velocity of flow and the density of the gas at section A are 5 m/s and 2 kg/m3, respectively. Atsection B, the velocity of flow is 8 m/s. a. Determine the mass flow rate. b. Determine the density at point B.
Problem 1. Gas flows through a pipe whose diameter gradually decreases from 300 mm at section A to 175 mm at section B. The velocity of flow and the density of the gas at section A are 5 m/s and 2 kg/m3, respectively. Atsection B, the velocity of flow is 8 m/s. a. Determine the mass flow rate. b. Determine the density at point B.
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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Problem 1. Gas flows through a pipe whose diameter gradually decreases from 300 mm at section A to 175 mm at section B. The velocity of flow and the density of the gas at section A are 5 m/s and 2 kg/m3, respectively. Atsection B, the velocity of flow is 8 m/s.
a. Determine the mass flow rate.
b. Determine the density at point B.
ENERGY AND HEAD
Head – the amount of energy per pound or Newton of fluid.
POWER AND EFFICIENCY
Power – is the rate at which work is done.
Efficiency – it is the ratio of the output power to the input power.
Transcribed Image Text:Problem 1. Gas flows through a pipe whose diameter gradually
decreases from 300 mm at section A to 175 mm at section B. The velocity
of flow and the density of the gas at section A are 5 m/s and 2 kg/m³,
respectively. At section B, the velocity of flow is 8 m/s.
a. Determine the mass flow rate.
b. Determine the density at point B.
ENERGY AND HEAD
Head - the amount of energy per pound or Newton of fluid.
POWER AND EFFICIENCY
Power is the rate at which work is done.
Efficiency - it is the ratio of the output power to the input power.
BERNOULLI'S ENERGY EQUATION
(v₂)² P₂
+ +22
2g Y
2g Y
LAW OF CONSERVATION OF ENERGY
(v₁)² P₁
+ + Z₁
E₁ + hAhE h₁ = E₂
EGL Energy Grade Line = PE + KE
HGL Hydraulic Grade Line = PE
FRICTIONAL LOSS, hy
DARCY
MANNING'S
HAZEN WILLIAMS
EQUATION
METRIC
0.0826fLQ²
D5
10.29n²LQ²
D¹3
4.72LQ1.85
CL.85D4.87
ENGLISH
0.0252fzQ²
DS
4.65n²LQ²
10.64LQ1.85
CL.85D4.87
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