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Volume Flow Rate

by kathmill
Tags: flow, rate, volume
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Dec16-08, 06:16 PM
P: 4
1. The problem statement, all variables and given/known data
A pump at ground level creates a gauge pressure of 102 kPa in the water line supplying an apartment building. The water leaves the tank into a pipe at a negligible speed. It travels up 10 m through the building and exits through a faucet. The cross-sectional area of the faucet is 2.0 cm^2. What is the Volume Flow Rate of the water leaving the faucet in cm^3/s?

2. Relevant equations

Volume Flow Rate: Q=Av
Bernoulli equation simplified: v = square root of: (Gauge Pressure - density of water*g*height)/(1/2 density)

So put V into Q=Av and solve!?

3. The attempt at a solution

I found it to be: 8 cm^3/m

Where am I going wrong?
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Doc Al
Dec17-08, 07:38 AM
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P: 41,489
You solved for the speed v (in m/s). You need the volume flow rate, which is Av.

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