Geothermal - Geoexchange

Geothermalscience studies the natural phenomena that contributes to the production and transfer of heat from the Earth's interior, a consequence of the radioactive decay of certain elements that make up the crust and mantle of our planet.

 

The urgent need to reduce energy consumption and diminish greenhouse gas emissions has made the use of the Earth's endogenous heat as a renewable and ever available source of energy, very interesting.The various geological conditions, the presence of quantities of fluids in the subsoil and extremely variable extraction costs, require very different technical solutions.

 

The technologies are based on the direct use of the fluid temperature (only heating) or mediated by heat pumps (heating - cooling), which have the task of extracting or introducing heat underground.

Heating and cooling using Geothermal energy

Heating and cooling systems with geothermal heat pumps have a low environmental impact and exploit the existing temperature differences in the air, water and on land, multiplying the heat by means of a compressor.

 

To install a geothermal system it is necessary to bore the ground a few metres from the building to be heated.The hole must have a diameter which varies between 10 and 18 cm in which U-shaped tubes are inserted. Inside these a convector fluid circulates which has the purpose of extracting heat from the ground.The heat pump powered by electricity allows the temperature to rise to 40 ° and to heat the entire building.

 

The geothermal system works on the principle of thermodynamics and has an evaporator that captures the heat present in the water, air and ground, evaporating the cooling liquid which then passes into the compressor.Using only 25% of electrical energy the temperature rises, flows into the heat exchanger and is transferred to the water that ends up in the heat distributors (radiators or coils).

 

With geothermal energy you can provide heating and hot domestic water, in addition to a cooling system, 24 hours a day, all year round.

 

Installation costs of a geothermal system are written off within 5-8 years and compared to a traditional boiler can save you 35-65% on your bill.

The benefits of a geothermal system

Installing a geothermal system has several advantages.First it supplies thermal energy taken from the Earth, so it is environmentally friendly, renewable, free (except of course for the cost of electrical consumption of the pump) and is guaranteed to function 365 days a year.With a single system it is possible to heat and / or cool an entire building with significantly lower operating costs (on estimate about 60% less) compared to a traditional heating system.It does not pollute the soil and contributes to a reduction of environmental pollution, as well as ensuring low maintenance since there are no elements such as chimneys.

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