Forum: Geothermal & Heat Pumps
09-09-15, 11:17 AM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
09-08-15, 11:49 AM
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Replies: 220
Views: 133,771
Looking at the spec sheet:
...
Looking at the spec sheet:
http://ecorenovator.org/forum/attachment.php?attachmentid=5842&stc=1&d=1441729599
I always get a bit nervous whenever I look at Chinese spec sheets.
It looks to me...
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Forum: Geothermal & Heat Pumps
09-01-15, 08:36 AM
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Replies: 220
Views: 133,771
I don't know if you picked up on it from the...
I don't know if you picked up on it from the 'Manifesto', but when I dug the 16 holes in my backyard, my most successful technique was to use 3" ABS pipes and a really powerful Rigid shop vac. It was...
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Forum: Geothermal & Heat Pumps
08-08-15, 02:37 AM
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Replies: 220
Views: 133,771
Thanks for Giving Back!!
MEMPHIS91,
Sounds like your system has passed the acid test!
* * *
In the beginning of this thread, you said that you wanted to 'give back'. These were your words...
I want to say that...
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Forum: Geothermal & Heat Pumps
07-12-15, 02:25 PM
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Replies: 220
Views: 133,771
I understand the 60C requirement, but that...
I understand the 60C requirement, but that doesn't totally rule out 'low tech' compressors. If you looked at your heat pump as a pre-heater, you could then do the daily 60C bump-up with your heating...
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Forum: Geothermal & Heat Pumps
07-12-15, 09:53 AM
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Replies: 220
Views: 133,771
I completely agree with jeff5may.
You have...
I completely agree with jeff5may.
You have created a very interesting unit here, with several innovative features, and you have stayed within the envelope of parts at hand.
As you may recall,...
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Forum: Geothermal & Heat Pumps
06-24-15, 09:24 AM
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Replies: 220
Views: 133,771
Chasing Wild Geese...
Yes, I found that out. After months of searching, I ended up finding on ebay, a reasonably-priced, rare (for ebay), small Danfoss TXV tailored for R290, that could be fitted with various orifices....
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Forum: Geothermal & Heat Pumps
06-23-15, 08:03 PM
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Replies: 220
Views: 133,771
jeff5may,
I have had serious problems...
jeff5may,
I have had serious problems finding sophisticated metering devices for equipment as small as MEMPHIS91 is working with, especially metering devices that are tailored for R290. I found...
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Forum: Geothermal & Heat Pumps
06-18-15, 01:11 PM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-13-15, 10:35 AM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-11-15, 11:24 AM
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Replies: 220
Views: 133,771
jeff5may,
You are absolutely right, it is my...
jeff5may,
You are absolutely right, it is my mistake to confuse the moment with the refutation of stupid claims. My bad.
The fact is that MEMPHIS91 has taken the fully documented risk of trying...
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Forum: Geothermal & Heat Pumps
06-11-15, 02:02 AM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-10-15, 08:04 PM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-10-15, 12:48 PM
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Replies: 220
Views: 133,771
Heat Extraction Rate...
When I made this post, I was not sure if the bore hole that MEMPHIS91 dug was up to the job of delivering heat to the water tank.
Thanks to all the good advice regarding optimizing the compressor,...
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Forum: Geothermal & Heat Pumps
06-10-15, 08:46 AM
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Replies: 220
Views: 133,771
I thought you'd be interested to see what a...
I thought you'd be interested to see what a graphic representation of your data looks like:
http://ecorenovator.org/forum/attachment.php?attachmentid=5423&stc=1&d=1433943495
Y = temp, X = time...
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Forum: Geothermal & Heat Pumps
06-09-15, 02:19 AM
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Replies: 220
Views: 133,771
When you braze, you want to keep oxygen away...
When you braze, you want to keep oxygen away during the brazing process because it will form copper oxide flakes inside the heated copper. These flakes can plug up a cap tube.
Most technicians,...
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Forum: Geothermal & Heat Pumps
06-08-15, 04:57 PM
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Replies: 220
Views: 133,771
Hole Depth...
I came across this very interesting document just now:
VERY_INTERESTING_DOCUMENT (http://www.geokiss.com/res-design/GSHPDesignRec2.pdf)
Table 1 is called:
Table 1. Recommended Lengths of...
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Forum: Geothermal & Heat Pumps
06-08-15, 04:18 PM
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Replies: 220
Views: 133,771
MEMPHIS91,
I'm just thrashing around here,...
MEMPHIS91,
I'm just thrashing around here, thinking of possible problems & approaches...
Whatever happened to the original cap tube? Was it damaged when you dismantled the machine? There is a...
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Forum: Geothermal & Heat Pumps
06-06-15, 06:33 PM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-06-15, 05:01 PM
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Replies: 220
Views: 133,771
I haven't run all the numbers yet but as you...
I haven't run all the numbers yet but as you know, your rig should be doing better.
I'm wondering if the bore hole is able to yield heat as fast as the compressor can take it?
You have...
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Forum: Geothermal & Heat Pumps
06-04-15, 05:24 PM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-02-15, 11:45 AM
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Replies: 220
Views: 133,771
All good from what I see.
You may already...
All good from what I see.
You may already know this, but when you are charging, it takes a bit of time for the system to adjust to the change in charge... like maybe 20 to 30 minutes for each...
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Forum: Geothermal & Heat Pumps
06-01-15, 09:53 AM
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Replies: 220
Views: 133,771
Really great job!
You have done a good job...
Really great job!
You have done a good job of utilizing the conditions and assets that are immediately available to you:
soft ground
a pond
low-tech drilling method
sloping ground to...
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Forum: Geothermal & Heat Pumps
06-01-15, 09:30 AM
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Replies: 220
Views: 133,771
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Forum: Geothermal & Heat Pumps
06-01-15, 09:19 AM
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Replies: 220
Views: 133,771
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