The compound manometer (shown previously in Figure 1) is attached at port A of the machined brass Venturi meter shown in Figure 2. A second compound manometer, also ultimately vented to the same atmospheric pressure, is attached at port B of the Venturi meter. The supply pipe consists of 72-mm diameter (D) ductile iron pipe conveying peanut oil (Sg = 0.9) at 30°C. The meter converges to a 48-mm diameter (d) throat section. Main pipe section A a₁ manometer connections Throat section B a, = 21°±2° %2=5⁰-15⁰ Flow ➤ 9₂ Main pipe section C + D Figure 2: Venturi meter At a particular moment, the 'A' manometer reading is 203.6 kPa and the 'B' manometer reading is 181.5 kPa. Compute the supply pipe volumetric flow rate (in L/s).
The compound manometer (shown previously in Figure 1) is attached at port A of the machined brass Venturi meter shown in Figure 2. A second compound manometer, also ultimately vented to the same atmospheric pressure, is attached at port B of the Venturi meter. The supply pipe consists of 72-mm diameter (D) ductile iron pipe conveying peanut oil (Sg = 0.9) at 30°C. The meter converges to a 48-mm diameter (d) throat section. Main pipe section A a₁ manometer connections Throat section B a, = 21°±2° %2=5⁰-15⁰ Flow ➤ 9₂ Main pipe section C + D Figure 2: Venturi meter At a particular moment, the 'A' manometer reading is 203.6 kPa and the 'B' manometer reading is 181.5 kPa. Compute the supply pipe volumetric flow rate (in L/s).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The compound manometer (shown previously in Figure 1) is attached at port A of the machined brass
Venturi meter shown in Figure 2. A second compound manometer, also ultimately vented to the same
atmospheric pressure, is attached at port B of the Venturi meter. The supply pipe consists of 72-mm diameter
(D) ductile iron pipe conveying peanut oil (Sg = 0.9) at 30°C. The meter converges to a 48-mm diameter (d)
throat section.
Main pipe
section
D
a
manometer
connections
Throat
section
B
+
d
α₁ = 21°±2°
%2=5⁰-15⁰
Flow
%₂
Main pipe
section
C
D
Figure 2: Venturi meter
At a particular moment, the 'A' manometer reading is 203.6 kPa and the 'B' manometer reading is 181.5 kPa.
Compute the supply pipe volumetric flow rate (in L/s).
Transcribed Image Text:Atmospheric pressure at this location is 102.0 kPa and fluid temperature is presently 30°C.
Oil (sg = 0.90)
C
Water
125
mm
475
mm
250
JU
mm
50 mm
Mercury (sg = 13.54)
Figure 1: Compound manometer (note: sg = specific gravity)
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