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Passive Solar Heating Panels - Page 3

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Posted by Morris Dovey on February 7, 2013, 1:20 am
 
On 2/6/13 5:48 PM, j wrote:

I like that it's Atlanta because I was born there. :-]


I'll STFW, but if/when you run across the bookmark, I'd /really/
appreciate an e-mail!


I think Rossi is trying to get all the recognition without disclosing
all that would be necessary for that to happen. Too bad for him - he's
making himself irrelevant. :-(

I built my one and only water heating panel forty years ago come May and
managed to scald myself three minutes after turning it to face the sun
on the first test. E-mail me if you'd be interested in trying out (yet)
another approach. :-)

--
Morris Dovey
http://www.iedu.com/Solar

Posted by j on February 13, 2013, 1:12 pm
 
On 2/6/2013 8:20 PM, Morris Dovey wrote:

They are still at work. Yesterday a 3 man crew came out and looked it  
over, the repair crew should be next. It's been raining here...

The bookmark failed me, but searching history yielded the culprit, which  
I originally found in a forum reference:

http://www.shapeways.com/materials  

I have not used them,yet.


Sure. I'll try to avoid the scalding though.

I ran another test a couple days ago. 5 gallons of water from 34F to  
125F in the few hours before I stopped the test. I'm using a submersible  
pond pump and I didn't want to damage the pump.

I'll try to get this plumbed into the house this week, and plug in the  
other collectors. I'd like to be able to run it between 100F and 140F to  
start off. Delta 40F at 100 gallons should give me 32K BTUs to get  
through the night.

Jeff


Posted by Morris Dovey on February 13, 2013, 4:50 pm
 On 2/13/13 7:12 AM, j wrote:

Thank you! Bookmarked them and just sent off an inquiry.


Good plan! My test panel was 24wx30h and, since it was a tiny panel and  
an overcast day, I decided to suck cold water up through the panel. In  
the minute or so it took to do that, the water got quite a bit warmer  
than I'd anticipated - it took weeks for my mouth to heal.

As time permits, I'll work up a drawing for a panel like that and let  
you know when it's ready.

--  
Morris Dovey
http://www.iedu.com/Solar/  

Posted by Morris Dovey on February 13, 2013, 9:42 pm
 On 2/13/13 10:50 AM, Morris Dovey wrote:


Sketch is at http://www.iedu.com/tmp/SolarWaterHeater.png  - it uses the  
same fin approach as the air heater, and baseboard radiator (finned)  
tubing in the heat exchanger. It's intended for vertical installation.

I'll leave it on-line through the weekend.

--  
Morris Dovey
http://www.iedu.com/Solar/  

Posted by j on February 14, 2013, 12:56 am
 On 2/13/2013 4:42 PM, Morris Dovey wrote:> On 2/13/13 10:50 AM, Morris  
Dovey wrote:
 >
 >> As time permits, I'll work up a drawing for a panel like that and let
 >> you know when it's ready.
 >
 > Sketch is at http://www.iedu.com/tmp/SolarWaterHeater.png  - it uses the
 > same fin approach as the air heater, and baseboard radiator (finned)
 > tubing in the heat exchanger. It's intended for vertical installation.
 >
 > I'll leave it on-line through the weekend.

Thanks, got it.

What's the cost of the feedstock for the fins?

   Cheers,
Jeff
 >



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