The Advantages of Geothermal Energy for Air Cooling
Monday, August 30th, 2010Geothermal energy is defined as the heat produced in the earths core since the planets origin. This power originates from radioactive decay of a number of minerals below the earths crust and also from the solar power consumed by the earth’s surface area. The energy at the moment, is utilized in industries, commercial companies and even in households for numerous functions and is thought to be ecologically practical as it uses minimal exhaustible resources of the earth. The thermal efficiency of this power is also high as little or no energy conversion is needed throughout its use.
In recent years, geothermal power gains ground as it is being more and more utilized in heating and cooling of properties and offices. This process uses constant temperature of the earth to heat and cool properties and companies with 40-70% less energy than standard systems. While standard heating and cooling units burn fuel or consume electricity, the geothermal energy uses a much lesser quantity of electricity only to pump out heat from the earth and then directly use the heat power for air heating or cooling.
Geothermal companies offer ground source heat pumps, for air cooling and heating purposes, which extracts heat from ground or groundwater, thus lowering carbon dioxide emissions and electricity bills and increasing ecological sustainability.
Ground source heat pumps : Mode of action
Air cooling and heating by ground source heat pumps is a process that is completely in vogue in the developed countries and is reaching a certain level of utilisation in developing nations also. The constant heat of the earth, at about 10 feet under the earths surface, continues to be around 50F, that is utilized by these pumps for the function. Air or anti-freeze liquids are normally pumped via the pipes that are buried under the ground and are re-circulated in the household or business building. In summer, the air or the anti-freeze liquid in the pipes of the ground source pumps draw out heat from the building and takes it under the ground through the pipes, therefore operating as air-coolers. During winter, it pulls the heat from beneath the earths surface and provides warm air or water to the building.
The ground source heat pumps makes use of a closed loop principle of evaporation of water or liquid refrigerant (that boils at a lower temperature as compared to water and therefore forms steam effectively), compression of the vapour formed and the subsequent condensation of the steam to water/liquid refrigerant for air cooling purpose.
Thus, in summary, geothermal energy is a commendable way of energy utilisation in the modern-day world. The value of its use in the purpose of air cooling and heating are:
1. Geothermal energy, being a renewable source, can easily be utilized over and over again and thus minimizes the risk of energy exhaustion in the future.
2. Because of its sustainability and lesser degree of pollution (its use minimizes carbon dioxide emissions in a huge way), geothermal energy is thought to be ecologically workable source of power.
3. This source of energy is cost-effective and energy-efficient, making it dependable for future uses.
With numerous distinct reasons, there’s no question of why geothermal energy is increasing in popularity.
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