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Posted by Morris Dovey on March 8, 2011, 8:53 pm
On 3/8/11 1:41 PM, Curbie wrote:
> I'm still an active fan due to a use of summer heated water, but it > seems a shame to hold back a viable passive design.
I agree. It's not a matter of holding back - it just doesn't make sense
to spend that much time producing a How-To for so few people while other
problems remain unsolved.
In the "unsolved problem" category, here's a time-lapse video of a
(non-electric) solar-powered tracker built by a clever Kiwi:
The jitter is the result of wind and (a lot of) backlash in the drive
train, but the approach taken looks good.
--
Morris Dovey
DeSoto Solar
http://www.iedu.com/DeSoto/
Posted by Curbie on March 8, 2011, 9:29 pm
Morris,
If you or anyone read anything negative in my use of the term "hold
back" it was not my intension and I apologize.
I still like the single axis clockwork tracker used on the Scheffler
concentrator, but I don't really see from the video how that one
works.
Curbie
Posted by Morris Dovey on March 8, 2011, 10:11 pm
On 3/8/11 3:29 PM, Curbie wrote:
> Morris, > If you or anyone read anything negative in my use of the term "hold > back" it was not my intension and I apologize.
I didn't, but was sensitive that some will consider that it's
unforgivably selfish of me to drop it and move on with other projects.
You have nothing to apologize for.
> I still like the single axis clockwork tracker used on the Scheffler > concentrator, but I don't really see from the video how that one > works.
It's a bit easier to see here:
The obvious advantage in my pumping context is that the pump can (also)
keep the tracking reservoir filled.
--
Morris Dovey
DeSoto Solar
http://www.iedu.com/DeSoto/
Posted by Curbie on March 8, 2011, 10:54 pm
wrote:
>On 3/8/11 3:29 PM, Curbie wrote: >> Morris, >> >> If you or anyone read anything negative in my use of the term "hold >> back" it was not my intension and I apologize. >I didn't, but was sensitive that some will consider that it's >unforgivably selfish of me to drop it and move on with other projects. >You have nothing to apologize for. >> I still like the single axis clockwork tracker used on the Scheffler >> concentrator, but I don't really see from the video how that one >> works. >It's a bit easier to see here: > >The obvious advantage in my pumping context is that the pump can (also) >keep the tracking reservoir filled.
Posted by Curbie on March 8, 2011, 10:57 pm
Morris,
>It's a bit easier to see here:
It is. >The obvious advantage in my pumping context is that the pump can (also) >keep the tracking reservoir filled.
At a cost, I wonder how much water it take to drive that tracker on a
daily basis???
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> seems a shame to hold back a viable passive design.