So do me the pleasure of posting a link if you have even a little bit of self-esteem ... Otherwise, you would recognize that it is lost in advance.
Picolo, mistaken to the point of not reading posts a few pages before, like the one at the start of this forum :
https://www.econologie.com/forums/post201163.html#201163
Canadian links that I have however written more than 100 times on econology, realization of the Canadian well type scientifically designed and heated by solar thermal in summer to find winter this heat and obviously picolo ignores that geothermal with heat pump is in reality of the average thermal solar between summer and winter and that the heat pump can be removed, replaced by simple solar collectors, to store there the heat of summer for the winter, if well designed, which is rare and picolo must have totally wrong ideas about heat diffusion and therefore read carefully :
http://de.wikipedia.org/wiki/Temperatur ... %A4higkeit
http://fr.wikipedia.org/wiki/Diffusivit%C3%A9_thermique
and assimilate all the figures and formulas of this basic course before any reaction because it is applied in the concrete cases given:
http://fr.wikipedia.org/wiki/Conduction_thermique
Renewable energies are accessible, given the amount of sun received per m2, currently wasted and recoverable with a variety of methods, even simple as thermal storage underground (geothermal amplified by the sun) for heating and even cogeneration of energy by thermoacoustics also efficient than solar:
http://fr.wikipedia.org/wiki/Thermoacoustique
http://thermoacoustique.free.fr/
http://www.io.com/~frg/
http://www.io.com/~frg/taceng.html
http://www.io.com/~frg/tar.htm
http://www.io.com/~frg/tac.htm
and real and concrete storage of summer underground heating for winter:
http://www.dlsc.ca/DLSC_Brochure_f.pdf
http://www.dlsc.ca
These simple and efficient methods are neglected and allow us to have only solar renewable instead of nuclear.
https://www.econologie.com/forums/post201272.html#201272
These links are examples of achievements that work for homes but are good for greenhouses, even better.
http://www.dlsc.ca/DLSC_Brochure_f.pdf
http://www.dlsc.ca
You have to look at their entire site because with detailed information in English, operating curves.
Scientifically their realization is the best without complications.
I have not seen anything in France on the internet and elsewhere outside Switzerland, Germany it is more complex with very large hot water tanks and therefore much more expensive, not keeping heat as long.
You need a basement where water does not circulate quickly, because otherwise the heat leaves with it, unless to inject products, cement, or other rendering watertight at the periphery !!
But if no one realizes, there will never be anything in France.
We measure our delay on this subject.
or you have to look at all the links on econology, I put a lot of them, wikipedia google:
http://en.wikipedia.org/wiki/Seasonal_thermal_store
http://www.solites.de/download/03-06.pdf
http://www.google.fr/search?client=fire ... =&aql=&oq=
The tangible mechanisms are simple:
diffusion of heat over distance like the square root of time
either in winter 3 to 6m (depending on the soil) (and on a day 20 to 50cm) and therefore the storage volume must be on a volume of dimensions larger than this diffusion length is 10m aucube or 25 holes at 2m each other on 10x10 = 100m2 at 12 to 16m deep for a pavilion or greenhouse of comparable need.
We do not find all the summer heat especially if the dimensions are small but it is simple to oversize on the surface the cheap summer sensors. (in any case this heat is lost on roofs without a sensor)
In Drake Landing for 52 pavilions, it is 144 on diameters from 30m to 35m deep which conserve the heat lost by diffusion over 3m (10000m3) much better with 52 per 15m2 of sensors per pavilion (garages). It is little by pavilion, a mini in my opinion for 1000m of altitude in cold continental climate and therefore it is missing a little, supplemented by boiler.
A simple method is to take a well-designed Canadian well (at least 3m deep and with this volume of earth close to 1000m3 to 3m around and to heat it in summer with cheap rudimentary solar collectors (16mm black plastic pipe). under glass, carbonate or transparent plastic heated to 60 ° C in summer).
http://www.apper-solaire.org/Pages/Expe ... 20minimal/
The price will be low (than that of the Canadian well or cheaper drilling with auger or perforator if the soil is not too hard).
Thus, the temperature of the fairly deep soil is raised above winter requirements.
This will be very easy for a greenhouse, especially since the desired temperature will not be too high and well insulated (double glazing).
For total security, with heating by wood boiler, storage reduces this consumption of wood, without taking the risk of non-operation due to insufficient storage (main undersized risk, case of many Canadian wells, and circulation of underground water which takes the heat elsewhere).
See as well all posts from:
https://www.econologie.com/forums/post193672.html#193672
with the premonition on my part of the real risks of a Fukushima, one month before in February 2011:
Yes, but when we compare to the complexity of nuclear power with its Damocles sword of Chernobyl above our heads, which will happen sooner or later in France, since men cannot be infallible in perpetuity, we find this a little strong that it is more difficult to make holes 13 to 15m deep for perpetual heating than to make nuclear power plants which last only 40 years at best and are full of waste for centuries or even millennia !!! !