Re: The Gilmartin Waterwheel

On Sat, 14 Jul 2007 16:11:53 -0700, James Arthur
<dagmargoodboat@xxxxxxxxx> wrote:

(un-top-posted. ja)
On Jul 13, 12:45 pm, "attend...@xxxxxxxxxxxxxxxxxx"
<attend...@xxxxxxxxxxxxxxxxxx>

wrote:
On Jul 12, 2:58 pm, Eeyore <rabbitsfriendsandrelati...@xxxxxxxxxxx>
wrote:

Rene Tschaggelar wrote:
Eeyore wrote:
John Larkin wrote:
"attend...@xxxxxxxxxxxxxxxxxx" wrote:

* The Gilmartin Waterwheel: A tiny water wheel that powers a small
cottage from and 8 inch waterfall, and much more new material in the
sidebars; new articles, books, resource websites and blogs.

Somebody can't do the math.

The usual journalistic nonsense.

" The water wheel produces one to two kilowatts of power and generates at

least
24 kilowatt hours of sustainable green energy in a day "
http://www.rexresearch.com/gilmartin/gilmartin.htm

Patent here
http://www.rexresearch.com/gilmartin/wo2006082403.pdf

I had a look at the page. 1 to 2 kilowatts is massively
overestimated. Without calculation I'd estimate it as
1 to 2W at most. From my experience it takes a few
liters a second at a dozend meter to get few hundred Watts.

Yes, as John said, someone can't do the math. It's not as if it's difficult either

!

You'd need a flow of something like 50 litres/sec and a 2m drop to get 1 kW.

Graham

Well, ok, good, but how do you explain how the guy is using it? He
actually uses it in his small Scottish Cottage, that is why he was
able to get development support.

Is it the case that there is more to the story besides the math you
understand for determining the output?

One possible explanation:
"Mr Gilmartin [...] does not own a TV and has never lived in a house
with electricity."
--(http://www.rexresearch.com/gilmartin/gilmartin.htm)

Cheers,
James Arthur


I got some of that super glow-in-the dark paint, strontium aluminate
doped with europium. It's astounding. Somebody should make laminated
plastic sheets with this stuff and give them away in 3rd world
villages. Leave them out during the day, and get hours of night-time
illumination, free and forever.

John

.

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