Question

What is the pressure drop associated with water at 27°C flowing with a mean velocity of 0.1 m/s

through an 800-m-long cast iron pipe of 0.30-m inside diameter?

Answer is close to 332 Pa

Please show all work

Answer #1

Water flows at the rate of 500gal/min through a 400-ft-long line.
The first and last 100ft of the line are 6-in.-diameter cast-iron
pipe, while the middle 200 ft consists of two 4.24-in.-diameter
cast-iron pipes.
(a) the average velocity in each section of pipe
(b) the pressure drop in each length of pipe
(c) the total pressure drop

Through a refinery, fuel ethanol is flowing in a pipe at a
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Given: The viscosity is negligible. Atmo- spheric pressure is
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diameter 3.3 cm. The gauge pressure P1 of the water in the pipe is
1.9 atm. A short segment of the pipe is constricted to a smaller
diameter of 2.1 cm.
What is the speed v2 of the water flowing through the
constricted segment?
Answer in units of m/s.
What is the gauge pressure of the water...

Given: The viscosity is negligible. Atmospheric pressure is
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A horizontal pipe contains water at a pressure of 100 kPa
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original diameter.
The speed of the water is 8 m/s
what is the pressure of the water?

Water flowing through a 1.3 cm -diameter pipe can fill a 300 L
bathtub in 5.6 min . Part A What is the speed of the water in the
pipe? show work please.
The gauge pressure at the bottom of a cylinder of liquid is 0.30
atm . The liquid is poured into another cylinder with twice the
radius of the first cylinder.
What is the gauge pressure at the bottom of the second cylinder?
answer with 2 sig figs.

Remember that pressure drop in piping vary as the diameter is
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pressure drop is inversely proportional to diameter to the fifth
power. You also know that velocity in the duct/pipe is inversely
proportional to area or diameter squared, again for the same mass
flow rate. Your water flow analysis is based on achieving a water
flow velocity similar to the air velocity (24 ft/s), however the
result for...

Water flows through a constricting pipe. At the inlet, the
pressure is 100,000 Pa, the diameter is 1.6 m and the water flows
at 1 m/s. The centerline of the outlet of the pipe is the same as
the centerline of the inlet of the pipe. Solve for the PRESSURE and
VELOCITY of the water exiting the pipe if the diameter is 0.8
m.
I know Bernoulli's equation, it's the solving for two unknowns
that has me lost.

Water moves through a constricted pipe in steady, ideal flow. At
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Water is flowing at the rate of 1.676 m/s in a 3.068 inches’
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p2 in the 2.067inch pipe. Assume no friction losses b) If
the piping is vertical and the flow is upward, calculate the new
pressure p2. The pressure tap for p2...

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