During a hydraulics laboratory experiment using a venturi meter and orifice meter to calculate the coefficient of discharge, the following results were obtained. Using the following data produce the results table from the lab results and data given
During a hydraulics laboratory experiment using a venturi meter and orifice meter to calculate the coefficient of discharge, the following results were obtained. Using the following data produce the results table from the lab results and data given
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
During a hydraulics laboratory experiment using a venturi meter and orifice meter to calculate the coefficient of discharge, the following results were obtained. Using the following data produce the results table from the lab results and data given.
Table of Results
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HV = (h1 - h2) m |
HO = (h6 – h7) m |
Q m3/s |
HV1/2 |
HO1/2 |
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Transcribed Image Text:Theory
The flowrate through a Venturi and Orifice meter can be found from the equation
a,a2
Q=Cs
/2gH
vai
where the cross-sectional areas are a, for the inlet pipe and a2 for the throat or orifice.
aja2
Va? - a?
Observations (Set 1)
The term
is known as the meter coefficient, K.
i.e. Q = C, ·K.2gH
Venturi
Orifice
Volume
Time
h1
h2
h6
h7
(Litres)
(seconds)
(mm)
(mm)
(mm)
(mm)
380
111
367
62
12.83
360
112
351
79
5
13.41
340
137
333
98
5
14.75
319
157
312
128
16.48
300
174
295
152
5
18.80
279
195
274
183
5
23.0
Observations (Set 2)
Venturi
Orifice
Volume
Time
h2
h6
h7
(Litres)
(seconds)
(mm)
(mm)
(mm)
(mm)
308
111
155
35
10
32
299
113
142
52
10
33
288
121
123
63
10
38
266
137
118
79
10
45
246
148
110
88
10
48.43
222
162
108
96
10
58.35
Tablef Results
1
3
4
Hy = (h1 - h2)
Ho = (h6 – h7)
Q
m3/s
Hy12
Ho12
NB.
Q = Volume/time
1000 litres/s = 1 m3/s
Hy = Venturi head
Ho = Orifice head
![Venturi Orifice Observation
Pipe
di [Inlet dimeter (mm)]
d2 [Venturi Throat / Orifice diameter (mm)] 15.0
di [Inlet dimeter (mm)]
d2 [Venturi Throat / Orifice diameter (mm)] 51.0
31.75
31.75
Set 1
20.0
26.0
16.0
Set 2
20.0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7317c2c8-1d62-4835-8d43-c363a3d62da8%2Fd350312b-041e-4517-86f6-4417ffa4960d%2Flcyj1b_processed.png&w=3840&q=75)
Transcribed Image Text:Venturi Orifice Observation
Pipe
di [Inlet dimeter (mm)]
d2 [Venturi Throat / Orifice diameter (mm)] 15.0
di [Inlet dimeter (mm)]
d2 [Venturi Throat / Orifice diameter (mm)] 51.0
31.75
31.75
Set 1
20.0
26.0
16.0
Set 2
20.0
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