Returns Scroll Stop Automatic mode

Hydraulic, wind, geothermal, marine energy, biogas ...Geothermal Heat Exchanger

Renewables except electric or solar thermal (see sub-forums dedicated below): wind, marine energy, water and hydroelectricity, biomass, biogas, deep geothermal ...
tbird
I discovered econologic
I discovered econologic
posts: 3
Registration: 23/11/04, 14:15

Geothermal Heat Exchanger

Unread Messageby tbird » 30/11/04, 11:00

Hello, I do not know much but I would build a heating system with a probe in the ground. I saw that it was necessary to drill. But in the case where one already possesses a well is it possible to put the "probe" (the exchanger) in the well?

Thank you for your lights :D
0 x

tbird
I discovered econologic
I discovered econologic
posts: 3
Registration: 23/11/04, 14:15

Unread Messageby tbird » 29/12/05, 10:20

And well I see that more than a year after my question remains unanswered : Cry:

I contacted official installers and they did not respond either : Shock:
0 x
User avatar
Misterloxo
Éconologue good!
Éconologue good!
posts: 480
Registration: 10/02/03, 15:28

Unread Messageby Misterloxo » 29/12/05, 10:50

I think that is quite possible.

Besides, I believe that André (Grand Chief of the Pantone) who rages on the forum has a similar system.

Do I deceive Andrew?
0 x
Learning disobedience is a long process. It takes a lifetime to reach perfection. "Maurice Rajsfus
To think is to say no. "Alain, philosopher
Other
Pantone engine Researcher
Pantone engine Researcher
posts: 3787
Registration: 17/03/05, 02:35
x 8

Unread Messageby Other » 29/12/05, 16:11

Hello,
For me you do not read all the posts, I have several times described my system of heating and air conditioning,
When I will have time I will retrace this post

Basically I pump the water from the earth in a well Artesien the temperature averages from 10c to 12c it passes in an exchanger the heat pump has freon 22 absorbs the calories on this water I pump a 5C to 6C on a flow of 25 A 30 liters per minute, (large compressor 5hp) water pump 1hp
This cooled water flows back into the ground beneath the surface of the frozen, or sometimes to the sewer when the earth (the radiator that is the earth cools especially in the spring when the snow melts and frozen down the water of the earth cools locally)
In the summer I air-conditioned and I supplied all my hot domestic water
Or two tanks of 60 gallons = 2 x 280 liters In the big heat I supplied too much hot water I have to evacuate in the sewer. Those with pools are perfect the return from the hot in the pool.

Andre
0 x
Other
Pantone engine Researcher
Pantone engine Researcher
posts: 3787
Registration: 17/03/05, 02:35
x 8

Unread Messageby Other » 30/12/05, 05:22

Hello
I found my old post

I have been heating and cooling my house with a similar system since 1993 and I did not have a problem except for a slight freon leak 22 in a joint on a pressure switch.
Basically I have to buy an old air pump water heater that has the size of a refrigerator, the engine is an 5hp brand Mamouthe, I have it all reconditioned is I install an exchanger to heat the hot water tanks (2 from 60 imperial gallons) in summer when I air conditioned. At the bottom of the house I push a point of 2 inches the ground is sandy the depth is 18 feet and I pump the water at the beginning the 1 hp pump was supplying 7 gallons at the time now it
Supplied 4,5 a 5 gallons in winter this becomes tangential because the water enters a 9C and comes out of the exchanger has 4c. The water at the beginning of winter in November is 11c when the ground is covered with snow, it is 12c, and gradually decreases to 9 c in April, but at this time
Uses it less. (It is in spring in May that the water is at its coldest)
In order not to weaken the water table (although it seems gigantic)
I turn the cold water into a plastic tube of 4 inches with saw lines to 30 feet away, and this is not enough, because in very cold period
January-February -25 and the more the machine works more often so that the water of the earth drops to 8 or 9 c then I am obliged to make a return
In the sewer for one week and the temperature of the water goes back to 10c so to keep the return of water as far as possible from the pumping point.
Another thing in the summer when you do the air conditioning at the beginning I do not need
To pump water, all the heat goes in the resevoirs of hot water for a maximum of 45 a 50c then it is necessary to evacuate the hot water and I advise you not to return hot water in the earth because after a Some time the pump can no longer push the hot water through the lines of the 4 pipe inches it is made a kind of algae or mud in the fence. So in summer we send hot water to the surface or to the sewer but be careful some municipality does not accept this, even that it is clean water.
The compressor pulls 25 amperes the water pump 4,5 amps the fan 1,5 amperes and the small pump of recirculation for the hot water tanks it is insignificant in fact the whole system draws around 30 amperes under 220volts and with this I heat All the winter my house (it is very cold in Quebec and the period of heating goes from October to April.
At the beginning I made hot water even in winter, it is profitable when the water of the acqeduc and very cold 5c is that we climb it 35 has 38 c then to go to 50 55c it is very long and It does not become more profitable I find that a factory works to heat water., As the KW costs 6 hundred here it is not worth it, I prefer to make hot water in the summer when I air condition , Anyway you end up with an exedent of hot water that you have to send into the sewer.
The disadvantages, the ventilation is noisy, the machine runs during 3 minutes and more before generating heat which makes that if one has a thermostat too sensitive the machine leaves all the 10 minutes and roll 6 minutes in winter, to correct This inconvenient I add a timer type of timed relay on the thermostat ie when it asks to heat, I delay the signal 30 minutes so that the temperature varies from more or less 2 to 3 degrees, We get used to it. Or I had a lot of difficulty is finding the right freon load and adjusting the thermostatic valves on the flow of water. But the, the machine is at the point.
Be careful when you talk about performance. It is very good when the differential is large, that is to say that the air of the room is cold the it performs but if one heats more strongly it decreases and it is well variant according to the pressures of the freon which varies with The temperature in summary is delicate to regulate it must compromise the yield runs from 3,5 to 2 compared to kw consumed. A simple indication is to measure the water passing through the exchanger with a meter and to measure the temperature in and out, a simple calculation gives us the calories recovered on the water. Be careful to measure the water after the pump as it gains 0,5 has 0,8 degrees as it crosses the pump.
If there are any who want more details I would send them to you

Andre
0 x

tbird
I discovered econologic
I discovered econologic
posts: 3
Registration: 23/11/04, 14:15

Unread Messageby tbird » 30/12/05, 09:08

Thank you André, I do not understand everything being electronicien and not physicist. If I understand correctly one can recover a system of refrigeration of occasion and heated water.
But what part of the cold group must be connected to the artesian well. And how to do the liaison. If I put a single pipe with a pump to make the water, have it deep enough to put the pipe.

By my home (south of france, Montpellier) it rarely gleams and the outside temperature is on average the winters of + 5 ° C
The system can operate under these conditions.
What heating temperature will I get?

Is it possible to return the water coming out of the system into the well itself?

Can one heat water so as to make a central heating with radiator?

As you see I still have a lot to learn : Wink:
0 x
christ59000
I discovered econologic
I discovered econologic
posts: 7
Registration: 29/10/05, 21:40

Unread Messageby christ59000 » 30/12/05, 23:21

hello, for heating by heat pump in your corner no worries, with the new system R410A we can operate up to -20 ° c outside, the warmer the outside the better the system heats, that c for the air system / air for the outdoor group, if you want to do the assembly with the well, c even better because the water is constant temperature all year, so conso electrique stable but need an air / water exchanger resistant to various attacks of corrosions , I am surprised that no professional has been able to inform you on the subject, the demand for geothermal heat pump increases more and more then it must have some in your department, for the manual assembly of the pump a heat, it takes knowledge and material only a person with notions in cold can help you
0 x


 


  • Similar topics
    Replies
    views
    Last message

Back to "hydraulic, wind, geothermal, marine energy, biogas ..."

Who is online ?

Users browsing this forum: No registered users and guests 2

Other pages that will certainly interest you: