Posted by Jim Rojas on February 1, 2011, 1:12 am
Jim Wilkins wrote:
My 3KW RPM system is setup in our family home in Puerto Rico. Or else I
would have posted pictures of it already.
I will see if I can put together a smaller scale unit with one output
alternator, one charging motor or alternator, 2 battery packs, and a
750w car inverter or UPS.
A standard 100Amp car alternator running at idle speed will provide
50 Amps, or 600 Watts. This will be enough for a demo.
I do have security cameras, but no web based DVR. Maybe I can order one
from eBay so we can view all this live on the net.
Technical Manuals Online!
8002 Cornwall Lane
Tampa, FL 33615-4604
Posted by Morris Dovey on January 31, 2011, 4:00 pm
On 1/30/2011 4:51 PM, Jim Rojas wrote:
If you'd said "because" instead of "and" I'd have shrugged and been
sympathetic - but I have to object to a blanket statement that solar
anything is cost-prohibitive, because I manufactured and sold solar
heating panels that weren't.
It may indeed not make sense for your site - but for folks living
farther north (with less sun and more cold), it made a lot of sense to
spend between twice and three times their annual heating costs for
enough panel area to meet all of their heating requirements for the rest
of their lives.
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Posted by Jim Rojas on January 31, 2011, 4:26 pm
Morris Dovey wrote:
I was referring to solar electric panels. That is something you are
basically stuck buying. Solar heating can be done on any budget, in a
variety of different ways.
Many people that live in remote areas also have access to running water,
like rivers & streams...that's ideal for getting off the grid.
Solar reflecting mirrors & fresnel lenses have huge possibilities, but
it only works when the sun shines. I would rather use running water that
Posted by Morris Dovey on January 31, 2011, 6:09 pm
On 1/31/2011 10:26 AM, Jim Rojas wrote:
I'd guessed that, and you wouldn't believe how many people I talked with
who'd heard that "solar" is either too expensive or couldn't work. Since
Google archives these conversations forever, sweeping negatives tend to
make me a bit twitchy. :)
That's true, and I'm absolutely dazzled with what Zach has done with his
micro-hydro setup. He likes to tell about the warts, but from here I
only see the beauty and the accomplishment.
Yuppers - this is a problem for high-temperature systems. I'm still
working on a high temperature solar engine capable of driving a linear
alternator so electrical power can be stored. A 30% thermal to
electrical conversion efficiency looks possible, but the proof will be
in the pudding. So far so good...
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Posted by Steve Ackman on February 7, 2011, 6:09 pm
17:22:00 -0700, Curbie, email@example.com wrote:
Jumping in a bit late here, and not having read the
You're way overcomplexicatizing things given some
of your reading audience.
950 ft2 roof / 177 ft2 pool = 5.37, so for every inch
that falls on his roof, his pool sees something less
than 5.37 (subtracting whatever undefined amount
overflows the gutters). Add the inch that falls
directly into the pool, and 1" of rainfall adds
something less than 6.37" to the pool.