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Forum: Geothermal & Heat Pumps 06-07-20, 10:43 AM
Replies: 48
Views: 26,629
Posted By jeff5may
Not trying to resurrect a zombie thread here, but...

Not trying to resurrect a zombie thread here, but I happened upon a YouTuber who has built his own desiccant air conditioner. If this link dies, search for Tech ingredients solar air conditioner.
...
Forum: Geothermal & Heat Pumps 09-08-16, 02:23 PM
Replies: 48
Views: 26,629
Posted By jeff5may
You've done this kind of experimentation before....

You've done this kind of experimentation before. You never know what's going to happen until you try. Just remember to be prudent with the crimping tool. Once the deed is done, you can't just go back...
Forum: Geothermal & Heat Pumps 09-06-16, 11:22 AM
Replies: 48
Views: 26,629
Posted By jeff5may
I can't really see any good pics of your indoor...

I can't really see any good pics of your indoor coil. What is usually done to accomplish even flow is simple. The manufacturers put some sort of restriction in each branch of the circuit. The more...
Forum: Geothermal & Heat Pumps 07-22-16, 03:26 PM
Replies: 48
Views: 26,629
Posted By jeff5may
those case fans are ecm. you can feed them less...

those case fans are ecm. you can feed them less voltage to make them slow Down.
Forum: Geothermal & Heat Pumps 07-21-16, 10:28 PM
Replies: 48
Views: 26,629
Posted By jeff5may
Thats outrageous! A 6x too big set of heat...

Thats outrageous! A 6x too big set of heat exchangers ought to max out your COP. Just remember that all the compressor cares about is pressure and compression ratio. With 100 degree outside temp, the...
Forum: Geothermal & Heat Pumps 06-30-16, 10:39 PM
Replies: 48
Views: 26,629
Posted By jeff5may
As long as the indoor water-grabbing part doesn't...

As long as the indoor water-grabbing part doesn't contain a whole lot of fluid mass or a high flow rate, heat gain shouldn't be a problem. My indoor collector had maybe an 8 by 12 inch footprint, ...
Forum: Geothermal & Heat Pumps 06-30-16, 12:49 PM
Replies: 48
Views: 26,629
Posted By jeff5may
The rig (a solar still) I built looked like this...

The rig (a solar still) I built looked like this design:
https://ecorenovator.org/forum/attachment.php?attachmentid=8986&stc=1&d=1591543008
EDIT: different picture with more elaborate feed path....
Forum: Geothermal & Heat Pumps 06-30-16, 06:34 AM
Replies: 48
Views: 26,629
Posted By jeff5may
Regeneration of the strong solution by using...

Regeneration of the strong solution by using waste heat sounds like a great idea. Whatever you do, use something nonmetallic for a heat exchanger. The calcium chloride solution corrodes metal for...
Forum: Geothermal & Heat Pumps 06-28-16, 08:32 PM
Replies: 48
Views: 26,629
Posted By jeff5may
The calcium chloride solution is good down to...

The calcium chloride solution is good down to like -40 degC before it freezes. Check out this chart:
http://www.phasediagram.dk/binary/CaCl2.PNG

In one of the previously cited threads, another...
Forum: Geothermal & Heat Pumps 06-27-16, 10:47 PM
Replies: 48
Views: 26,629
Posted By jeff5may
Oops, it helps to update my browser before...

Oops, it helps to update my browser before commenting...

Main idea is the solid salt dehydrates the air faster than a solution. A strong solution works faster than a weak one. More relative...
Forum: Geothermal & Heat Pumps 06-27-16, 10:38 PM
Replies: 48
Views: 26,629
Posted By jeff5may
Go buy some at your favorite local big box store....

Go buy some at your favorite local big box store. This amazingly common product is called damprid. Super deliquescent anhydrous calcium chloride plus essence of smell. Pop the top and it starts...
Forum: Geothermal & Heat Pumps 06-26-16, 06:32 PM
Replies: 48
Views: 26,629
Posted By jeff5may
i hear you. Just throwing around ideas like...

i hear you. Just throwing around ideas like usual. If you want to build another evap coil, save the bristle coil for further experiments. I would shut off the fan to see what if first though... As...
Forum: Geothermal & Heat Pumps 06-26-16, 12:11 PM
Replies: 48
Views: 26,629
Posted By jeff5may
The two ton coil you rigged in to the hpwh is...

The two ton coil you rigged in to the hpwh is plenty large enough...but for a water grabber. You seem to have indicated it was doing a good job in that regard without overcooling the house. The thing...
Forum: Geothermal & Heat Pumps 06-26-16, 02:10 AM
Replies: 48
Views: 26,629
Posted By jeff5may
You have your heat exchangers mixed up. The...

You have your heat exchangers mixed up. The evaporator is the cold one in the suction side, the condenser is the hot one on the discharge side, of the refrigerant loop.

What you have been doing...
Showing results 1 to 14 of 14

 
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