Rainwater pipe in wall

[ldavison10]

Hi,

I have an internal open plantwell with a 100mm pipe disappearing through a wall at floor level (fall unknown!). This pipe i think then bends vertically down and drops down a riser.
Can anyone advise on the calculation required to work out how much water this pipe will remove?

Thanks

Lee

 

[BigInch]

Pipe flow according to Bernoulli.
At constant velocity,
Z + P1/[γ]/H1 - HL = Z + P2/[γ]/H2
Use any appropriate flow equation to calculate Head Loss, HL.

Reduce the flow by some appropriate amount that depends on if there is a screen or grating or some other entry conditions for the water going into the pipe.

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"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/