The temperature underground is much more stable than at the surface, so by directing the air underground into a house, more cooling in the summer and heating in the winter can be achieved.. Depending on the situation, it is possible to significantly reduce energy expenditure or completely avoid it for these purposes. Geothermal air conditioning is a good alternative to the energy shortage coming this winter. And of course it is always an ecological and inexpensive option.
Canadian wells, sometimes known as Provence, form an e.An example of geothermal air conditioning, which is increasingly used because of its simplicity.
of these systems pipes laid under the houses and connected to them to regulate the temperature inside the houses. Since it does not consume any electrical energy, it is a system with only one cost to install. From then on, the cost of airing the house will be cheaper, because a lot of money will be saved on each bill.
The principle behind Canadian wells is simple: The air accumulated in the underground pipes in the summer is cooler than the air in the house. In winter, the opposite happens: the underground air is warmer than the air in the house.. In this way, we have a natural source of temperature change to warm us in the winter and cool us in the summer, without the need to consume any electricity.
This type of bioclimatic strategy significantly increases the energy efficiency of a building. Of course, if the installation is done while the house is being built, it is cheaper than if it is done later, but the advantages are obvious in any case.
The surface temperature varies with the ambient temperature and this difference is highlighted and remains constant. at a depth of two or three meters, where the temperature is usually constant around 18ºC-24ºC, as described by the private portal Abouthaus.
Its structure is based on laying 2 to 4 meters deep and 35 meters long channels under the ground and circulating the air through these channels. In contact with the ducts, the air gains the warmth of the floor, which is then supplied to the rooms of the house, with or without an extra warmth contribution.
It is estimated that at a depth of about 15-20 meters you can find a constant temperature throughout the year. However, at a depth of about 3 meters, we already find temperatures that we can consider close to the optimum comfort temperatures in a home (18º to 24º).
It is recommended to examine the soil beforehand.
Before installing a Canadian well the soil of the land is studied to know its thermal conductivity and other properties it offers. In this way, it will be possible to know its full potential and possible disadvantages.
The thermal conductivity of soils depends on their porosity and degree of saturation.
For example, granular soils containing clay or silt have a higher degree of thermal conductivity than sandy soils.
On the other hand, the full conductivity of clean sandy soils is low when dry and high when saturated.
The presence of water has a strong influence on the thermal properties of the soil, including its thermal conductivity and heat capacity.
In winter:
In winter, the weather outside is cold. But at a depth of two or three meters, the temperature is already higher than outside. For this reason, the air coming from outside warms up as it circulates in the underground pipes and improves the climatic conditions of the house when it reaches the house. Electric heating can thus be greatly reduced or even completely avoided, depending on the situation.
In summer:
In summer, the temperature outside is higher than underground. In this way, the air passing through the underground pipes is cooled and reaches the interior of the house with a few degrees less, thus increasing the comfort of the house and reducing or preventing the consumption of air conditioning or ventilation.
Reference article: https://about-haus.com/how-to-build-a-canadiense-well/
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Contact information of the environment department: [email protected]
Source: Informacion
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