Oddball backyard water pumping project [RE-wrenches]

[Allan Sindelar]

Travis' approach is brilliant, and much better than my SunCentric
suggestion. The SQF can intrinsically accept either AC or DC power. The
IO101 controller (I think) automatically priority-switches to an AC source,
and the CU200 handles the PV. He's also correct about eliminating batteries.
Way cool.
Allan

----- Original Message ----- 
From: "Travis Creswell" <tcreswell at ozarkenergyservices.com>
To: <RE-wrenches at topica.com>
Sent: Wednesday, January 09, 2008 6:43 PM
Subject: RE: Oddball backyard water pumping project [RE-wrenches]


>
> A 100 GPM sounds like a bunch but in this sort of application it's likely
> not.  Just taking a SWAG here....1/2 Gallon per cup x 24 Cups x 10 RPM =
120
> GPM.  It all depends on how big a wheel he wants and how many RPMS he
wants.
> Cut that above calculation by 75% and your still at 30 GPM.
>
> From memory a SQF Flex at the sort head of could do well over 60 GPM (80?)
> with 900 watts or less.  With a little imagination one could come up with
a
> solar direct battery less system that used some relays a timer and a
> photocell.  So at sunrise the pump turns on, at sun set a double throw
relay
> arrangement switches from solar to grid then at 10PM the system shuts of
and
> repeats the cycle at the next sunrise.  It would also be possible to put
an
> override in the there so the customer could turn off the system when he
was
> not going to home for extended periods or turn it on when the garden party
> extended in the wee hours.
>
> The net benefit not using batteries just so the system could run a few
more
> hours a day would be well worth the price and environmental impact.
>
> Yes, fountains are cool.  I'm about halfway through building two ponds
about
> an acre each at a low spot in my property to catch and retain natural run
> off that will have a "stream" connecting them.  I'm mentally playing
around
> with flow rates and pumping methods for moving water between them to
create
> some moving water features.
>
> Travis Creswell
> Ozark Energy Services
>
>
>
> ----- Original Message ----- 
> From: "Kurt Albershardt" <info at es-ee.com>
> >
> > We upgraded a system feeding a waterfall with a Solar Force piston pump
> and 5x Siemens SP75 panels.  Pretty much everything else the original
> installer sold them was replaced or upgraded: inverter powered AC fountain
> pump replaced with a 12V Oasis, installed a DC timer and QO load center
for
> all the DC.  C40 and the L16s died about a year later, so we put in an
MPPT
> charge controller and large stack of AGM cells.  Inverter is still there
on
> a manual switch in case they need to run a power tool
> > out there.  Still running after ~6 years now.
> >
> >
> > --On Wednesday, January 09, 2008 1:00 PM -0800 Joel Davidson
> <joel.davidson at sbcglobal.net> wrote:
> >
> > >
> > > Wrenches,
> > > A neighbor is putting in a shallow decorative pond with a wooden water
> wheel. He wants to pump water (100 gpm but I think that is way too much)
> from the pond up 7 feet to turn the water wheel. Yes, I know that this is
> not the best use for power, but the world would be a sadder place without
> fountains, ponds, and water decorations. Instead of utility power I
> suggested using a solar powered DC direct drive pump, but he wants the
water
> wheel to turn until 10pm. Any suggestions would be most
> > welcome. Thanks in advance.
> > > Joel Davidson
>
>
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