[elky] Re: Way off topic...but sorta scientific: water pressure and flow
- From: "Jim Dos" <jdos@xxxxxxxxxxxxx>
- To: <elky@xxxxxxxxxxxxx>
- Date: Sun, 12 Dec 2010 07:13:44 -0600
The higher your reservoir, the greater your pressure. Has to do with
physics, and I can't tell you all the details..something like every 10' is
a factor of 14.7 lbs. air pressure pushing down on the fluid.
If you want say 30lbs of pressure you will have to be quite high.. 6' isn't
going to cut it. Just make it simple and put a pump on it
From: elky-bounce@xxxxxxxxxxxxx [mailto:elky-bounce@xxxxxxxxxxxxx] On Behalf
Of Ray Buck
Sent: Saturday, December 11, 2010 11:47 PM
To: elky@xxxxxxxxxxxxx
Subject: [elky] Way off topic...but sorta scientific: water pressure and
flow
Fluid pressure. Does the pressure behind a fluid increase with the height
of its storage reservoir? I see lots of cities' water reservoirs in huge
tanks 100 or so feet off the ground. Is this better than...say 20 feet
higher than the highest point in the town? If this is a law of physics, I
don't know it...and don't think I ever investigated this area before.
Here's the deal. We wanna test some fluid (we're gonna use colored water)
flowing thru a clear plastic pipe and I came up with one design, my partner
with another. His plan was to have 2 55 gallon drums mounted on a level
surface and "push" the fluid thru the tube with a sump pump and catch it in
the other. The pump pressure/volume is unknown at this time.
My plan was to mount the reservoir drum...say...6-10 feet higher than the
pipe and use a valve to control the flow into the pipe which would exit into
the catch drum; then use the sump pump to replenish the reservoir drum.
Is there any outstanding merit or disadvantage to either system (apart from
the fact that his way is easier to construct?)
Thanks,
r
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