kwebber
Registered Users
Posts:10
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| 10/08/2008 3:48 PM |
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I was planning to install a closed horizontal loop, but since I have been waiting for my father's equipment to become available to do so, my mind has been wondering on other options.
I was wondering about the idea of pumping from the bottom of a well and dumping onto the top of the same well. Has anyone ever done this? Just to give you an idea of my conditions, I am in central Maine, my house is 2400 square feet with a heat load of 43,000 (61,000 with basement, not planning to heat). I was curious if anyone thinks it is possible to use a 6" well at about 500 feet deep (or whatever it takes) and pump from the bottom and dump on the top? I have a 6" well at 160 feet for my domestic water already and I think recharge rate was about 5 gal/min, so I don't think I would be able to pump from this well and dump into another since it seems that I would run the risk of running out of supply water, but if I could dump on the top just maybe this would work. I'm sure that the EWT would be affected by this, but do you have any idea how much? I also need to find my water test to see if the water quality will work as well. Also wasn't sure if it would be too expensive to run a pump to accomplish this. Just an idea and was curious what you all thought.
Thanks |
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senecarr
Registered Users
Posts:158
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| 10/08/2008 4:13 PM |
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I don't see how you could pump into and dump into the same well at the same time. I would think you'd need some kind of holding tank for the dumping period when the system wasn't running (which my understanding is the units run close to continuously).
Just my 2 cents as just an enthusiast. |
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geodean
Registered Users
Posts:590
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| 10/08/2008 5:32 PM |
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| These are called standing column geothermal wells. In some parts of the country they are quite popular. Do a search on this forum as they have been discussed at great length |
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Dewayne Dean
PalaceGeothermal.com
Why settle for 90% when you can have 400%
We heat and cool with dirt!
visit- http://welserver.com/WEL0114/- to see my system |
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kwebber
Registered Users
Posts:10
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| 10/08/2008 5:58 PM |
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| Thanks, I came across the name of them after I posted that message. Off quick it sounds like an easier and cheaper way out. But.....not sure it is the best way to handle it. Does anyone on here have experience with them, good or bad, to share. I really wasn't looking forward to tearing up my property with our excavator for the ground loop, but sometimes we need to do what we need to do. I could certainly have someone drill my well deeper much cheaper than installing my ground loop. My research continues. Thanks. |
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geodean
Registered Users
Posts:590
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| 10/08/2008 7:29 PM |
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| An open loop performs better than a closed loop (since the water temp is more constant). You need to make sure of the water quality. A high mineral content will cause you problems. |
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Dewayne Dean
PalaceGeothermal.com
Why settle for 90% when you can have 400%
We heat and cool with dirt!
visit- http://welserver.com/WEL0114/- to see my system |
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bartman99
Registered Users
Posts:35
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| 10/09/2008 2:01 PM |
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We are in the process of doing a SCW system in Virginia. We already had the well and are in the process of installing the heat pump. All we have done currently , however, is run the return line back to the well.
There is a decent amount of information on the web concerning standing column wells. This company seems to have the most experience with the systems from what I can
tell by surfing the web. I have never contacted them though, so I cannot make a personal
recommendation;-)
I'll be posting my experience and my data (I'm installing the WEL data server) as it becomes available.
BM
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a0128958
Registered Users
Posts:183
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| 10/09/2008 2:24 PM |
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Posted By bartman99 on 10/09/2008 2:01 PM
...
I'll be posting my experience and my data (I'm installing the WEL data server) as it becomes available.
Don't hesitate to go out to http://www.ourcoolhouse.com , or contact me, for assistance implementing your WEL. (I'm at http://welserver.com/WEL0043/ .)
Good luck!
Best regards,
Bill
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kwebber
Registered Users
Posts:10
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| 10/09/2008 2:25 PM |
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| Thanks guys. This idea has my full attention. I'm having a hard time finding information on what would be considered quality water for this system. I found the results of a test done in 2005 on my water, but I'm not sure there is even enough information on it. I have attached it. Any ideas on where to find information for what is acceptable for water? |
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bartman99
Registered Users
Posts:35
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| 10/09/2008 3:09 PM |
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This was posted on this forum a while back (I can't take credit). It's from the Climatemaster manual.
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kwebber
Registered Users
Posts:10
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| 10/09/2008 3:46 PM |
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| Thanks Bartman, looks like my hardness of 151 may be an issue. does anyone have any thoughts? I checked my well this afternoon, it measured about 150 feet deep (I think the pump is probably 10 feet up so I think my memory of 160 feet is right), and the water table is at 12 feet below ground, not sure what the draw down would be during pumping. Does anyone have any suggestions on how deep the well should be? 300'-400'-500', I've seen some suggestions of 80 feet per ton, which would be about 400. |
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kwebber
Registered Users
Posts:10
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| 10/09/2008 5:39 PM |
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found this site to be very informative if anyone is interested.
www.hvac.okstate.edu/papers.html
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