Answered: I did a venturi effect experiment which…

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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Question

I did a venturi effect experiment which involved taking 15 mesurements. The opening of the damper at the end of the tube was increasing in increments of 0.5cm for each of the 15 mesurements. Then the change in length in manometer tube was recorded. the manometer tube used in this experiment wasn't vertical, it was horizontal with a slight incline. Room temperature and pressure were recorded at the start of experiment as well. As the opening of the damper increased from mesurements 1 to 15, the change in length of manometer tube also increase from 1 to 15. the bigger diameter of the tube is 140mm and the diameter of throat section is 89mm. The density of the fluid is 870 kg/m. Using this information workout all the equations on the image and also the mass flow rate which should be volumetric flow rate multiplied by density. Also workout the reynolds number. Workout all these to determine the relationship between mass flow rate, velocity value and reynolds number. Let me know if you want anything else :)

h = Lsine
Sin 0 = 0.2
To get Ah Cchange in verticle
height) :- AL x Sin (0.2)
AL
convert to meters
Venturi Tube Data Sheet
↑
Measurement
1
Position of Damper (cm)
Ah in Manometer Tube (in)
0.5
0.7
2
1.0
1.7
3
1.5
3.66
456
2.0
5.48
2.5
3.0
7.10
8.85
7
3.5
10-10
8
4.0
10
95
9
4.5
11.52
10
5.0
12.09
11
6.0
12.80
12
7.0
13.30
13
8.0
13.60
14
9.0
13.80
15
10.0
14.05
Room Temperature (°C)
19.3.C
Room Pressure (Pa)
106.5

Useful equations
Bernoulli's Equation (head form):-
Cross-sectional Area:-
Velocity:-
pg 2g
P1++Z1
P2+
pg 2g
+22
πd²
A=
4
Ve
A
► Continuity Equation:-
Q=AV and note A₁V₁= A₂V₂
Qtheoretical A2V2which can be worked out as:-
A₂ X
Pair 1-1
2Pmangh
A

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