Hybrid Car – More Fun with Less Gas

How many panels ? ( to run 230 volt sprinkler pump 30 minutes a day?) - Page 48

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Posted by bealiba on July 24, 2008, 10:51 pm
On Jul 25, 1:05 am, wmbjkREM...@citlink.net wrote:


Another pointless post by Tweedledum

Posted by wmbjkREMOVE on July 22, 2008, 2:39 pm
On Tue, 22 Jul 2008 05:49:47 -0700 (PDT), bealiba@gmail.com wrote:

No, your "formula" is overly-simplistic and as executed by you in this
thread, resulted in a failure to recommend a proper setup, much like
all the other bungling in previous threads.

Who do you think you're kidding? You intended to demonstrate that you
know how to "design". Trouble is, your 154 panel calculation had the
exact opposite result. Next you tried to somehow avoid accepting
responsibility for that initial mistake. Hence 100+ additional posts
containing everything but the kitchen sink, including several more
errors which left no doubt about how little you know about the
subject. Same old same-old ghinius ghio, always trying to write
yourself out of holes that you wrote yourself into. Here's an example
of what any normal person in your situation would have written: "I am
embarrassed beyond belief at my repeated blundering, so I'll go stand
in the corner for a while". If you'd learn to write like that, then
you might finally have a chance at earning some respect. Plus, rather
than wasting time writing 100+ idiotic follow-up posts, you could have
reviewed the basics and analyzed *why* you can't seem to stop
confusing amps and watts. Instead, you're not one lick closer to
becoming proficient, and will almost certainly make another
embarrassing mistake the very next time you try to answer a simple


Posted by bealiba on July 22, 2008, 11:43 pm
 On Jul 23, 12:39 am, wmbjkREM...@citlink.net wrote:


System losses according to Tweedledum;

Wiring losses are called "Voltage Drop" and are caused by resistance
in the wire. Increasing the load only increases the "Voltage Drop".

This is the total of Tweedledum's ability.

Posted by wmbjkREMOVE on July 18, 2008, 1:58 pm

Consider that he could do the job with an off-the-shelf solar-direct
pump for $k plus installation if he's thrifty, which would allow
lifts up to 500' or flow rates as high as 10gpm if needed, without
anti-freeze. Which means that he'd be doing a heck of a lot of
tinkering to save $000. Where do you see the market for your


Posted by Morris Dovey on July 18, 2008, 3:48 pm
 wmbjkREMOVE@citlink.net wrote:

At present, we're working on two "flavors" of the engine - a
low-temperature (<250F) version that can be driven with heat from a flat
panel collector, and a high-temperature (~725F) version whose design is
integrated with a trough-type parabolic concentrator.

Pumping is only the first application for the engines, and seems like a
good starting point because a fluidyne becomes a pump with the addition
of a pair of check valves.

We'd like to publish a simple low-temperature pump design for
distribution by NGOs and UN agencies so that anyone, anywhere can build
their own 2 HP pump and have water where they need it, even where there
is no grid or fuel distribution network. That, all by itself, probably
covers a lot of "where".

We've already been asked if we could provide irrigation pumps up to the
100 HP range, so I think there will be enough business to support a
design-and-build-to-order manufacturing enterprise (that's a big part of
why I'm pushing the design software along as fast as I'm able). That
market will initially be located in the more developed parts of the
world - starting in the USA.

The more efficient high-temperature engine fits different marketing
scenarios: First of all, it can be incorporated into a pump that can be
shipped in a compact flat "format" for emergency air drop in flooded
areas like NOLA, Bangladesh, and Myanmar for immediate (10-minute
screwdriver assembly) deployment. I haven't a clue who the buyers might
be, but that design will be available. The second application for the
high-temperature engine is a bit less obvious and requires a short
digression (for readers not familiar with Stirling engines):

Our fluidyne is a Stirling cycle engine. Stirling engines have some
rather interesting behaviors: If you provide heat at the engine's hot
head and remove heat from the cold head, the engine will convert some
portion of that heat energy to mechanical energy. Conversely, if you
drive the engine with mechanical energy, it will move a portion of the
heat energy at its hot head to its cold head. In other words, a
mechanically-driven Stirling engine is a heat pump.

Our second application calls for driving a first fluidyne with solar
heat to produce mechanical energy - and using that mechanical energy to
drive a second fluidyne as a heat pump. At present we're most interested
in refrigeration and air conditioning applications (ice-makers, etc.
come later).

The market for directly solar-powered air conditioning is likely to be
anywhere it's hot enough for "no-energy-cost daytime cooling" to offer
significant savings. Note that conventional systems would still be
needed for sunset-to-sunrise cooling, but the sunrise-to-sunset cost
savings may be significant in many tropical and sub-tropical areas.

That's the short answer, but probably still more than you wanted to
know. :-)

Morris Dovey
DeSoto Solar
DeSoto, Iowa USA

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