Free Cooling

Heating, insulation, ventilation, VMC, cooling ... short thermal comfort. Insulation, wood energy, heat pumps but also electricity, gas or oil, VMC ... Help in choosing and implementation, problem solving, optimization, tips and tricks ...
curious 84
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I learn econologic
posts: 10
Registration: 03/11/19, 16:43

Re: Free Cooling




by curious 84 » 05/11/19, 22:42

Thank you Ahmed,
It was quite difficult for me to give all the parameters .. because I discover with the answers the importance of some ...
I am aware of the need to circulate the air as slowly as possible to avoid the noise and discomfort of drafts ...
I looked on the internet for what might be interesting, I admit that I was not convinced ... That is why I was wondering if it would not be easier to recycle an air conditioner block (reclaimed .. .,) It remains to be seen whether the volume of water would be large enough?
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curious 84
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I learn econologic
posts: 10
Registration: 03/11/19, 16:43

Re: Free Cooling




by curious 84 » 06/11/19, 00:33

My borehole is PVC 110 tubing with slots all along (made with a grinder ...) The hole is wider (6 inches ...) But being in the rock the void between tube and wall remains unfilled .. having obtained access to an irrigation canal soon after doing this work I never used the drilling .... the water comes out and sometimes even overflows ...
I had considered removing the PVC before sliding the probe, I was advised against it, because first the heat exchange would not be better and the passage of the probe less easy .......
Here...
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sicetaitsimple
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Re: Free Cooling




by sicetaitsimple » 06/11/19, 12:02

curious 84 wrote:My borehole is PVC 110 tubing with slots all along (made with a grinder ...) The hole is wider (6 inches ...) But being in the rock the void between tube and wall remains unfilled .. having obtained access to an irrigation canal soon after doing this work I never used the drilling .... the water comes out and sometimes even overflows ...
I had considered removing the PVC before sliding the probe, I was advised against it, because first the heat exchange would not be better and the passage of the probe less easy .......
Here...


Indeed, if we can consider as a first approximation that the water contained in the borehole is continually replaced due to movements of water tables and the "vacuum" between tube and wall, the risk of heating that we mentioned (with Ahmed) is largely attenuated.
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curious 84
I learn econologic
I learn econologic
posts: 10
Registration: 03/11/19, 16:43

Re: Free Cooling




by curious 84 » 06/11/19, 14:46

Hello, thanks to the interest you have taken in my question, I am looking for the necessary equipment.
During my internet research I noticed that the system is called "Geocooling" ...
For the probe, I found on the internet (with a dealer not too far from my home ...)
There remains the circulation pump (which I think I can easily find at resellers of articles for heating plumbers ...)
Where I block, it is for the exchanger ... The air heaters offered for sale are rather industrial ...
I will have to go around the air conditioning companies to see the possibility of acquiring one or more exchanger ...
To be continued...
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sicetaitsimple
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Re: Free Cooling




by sicetaitsimple » 06/11/19, 15:20

curious 84 wrote:Where I block, it is for the exchanger ... The air heaters offered for sale are rather industrial ...


It is not obvious indeed .... Because it is also a problem of comfort and in particular of noise.
The solution of the previous wire (car radiator) seems to me out of play. When I get out of my car in the middle of summer and I hear the ventilation of the radiator running, it seems obvious to me that it would be totally unbearable in a housing, even if cooling efficient. Except to make it work only during his absences, which depending on his lifestyle can in some cases be considered.
The fact remains that there was no follow-up, it seems to me, to the video where the principle of the system was presented.

Without being a specialist, I would take the problem in this order:
- note the nominal flow recommended for the probe you plan to buy, or the flow range.
- check, but a priori it is not a problem, that there are circulators designed for.
- second-hand looking for elements of air conditioning. whose nominal water flow is relatively close, even if it means putting two in parallel if necessary.
- it should allow, with other characteristics to recover or estimate (exchange surface, air flow) to have a vague idea of ​​the power exchangeable with water at around 15 ° C as input before launching .
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curious 84
I learn econologic
I learn econologic
posts: 10
Registration: 03/11/19, 16:43

Re: Free Cooling




by curious 84 » 06/11/19, 18:01

Thanks thanks,
I was well understood, and your answer goes exactly in the direction that I imagined ...
Of course car radiators never seemed to me a comfortable idea ...
I think I can draw at least 3500 watts ... I must calculate the flow rate of the fluid so that an exchanger can give me satisfaction compared to the desired Delta ... I am starting to see on the internet interpretable tables ....
Good night
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sicetaitsimple
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Registration: 31/10/16, 18:51
Location: Lower Normandy
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Re: Free Cooling




by sicetaitsimple » 06/11/19, 19:01

curious 84 wrote:I think I can draw at least 3500 watts ...


??? To "shoot" 3500W, you need two! The probe on one side but also what is exchanged on the "air conditioning exchanger" side.

Do you have the technical doc of the probe that you spotted? (it is available on the site that you proposed but to download it you have to register, which I have no intention of doing).
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curious 84
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posts: 10
Registration: 03/11/19, 16:43

Re: Free Cooling




by curious 84 » 06/11/19, 19:58

It's not this one, I will look for and put the doc in pj
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