The Benefits of Geothermal Energy for Air Cooling
September 3rd, 2010Geothermal energy is defined as the heat made in the earths core since the planets origin. This power stems from radioactive decay of numerous minerals below the earths crust and also from the solar energy absorbed by the earth’s surface. The power at present, is utilized in industries, commercial enterprises and even in homes for numerous functions and is considered ecologically workable as it makes use of minimal exhaustible resources of the earth. The thermal performance of this power is also high as little or no energy conversion is needed during its use.
In recent times, geothermal energy gets ground as it is being increasingly more used in heating and cooling of homes and offices. This process makes use of constant temperature of the earth to heat and cool residences and companies with 40-70% less power than conventional systems. While regular heating and cooling products burn fuel or consume electricity, the geothermal energy utilizes a much lesser amount 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 uses, that takes 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 method which is completely in vogue in the developed countries and is reaching a certain level of use in developing nations also. The continual heat of the earth, at about 10 feet underneath the earths surface, stays around 50F, which is used by these pumps for the purpose. Air or anti-freeze liquids are normally pumped through the pipes which are buried under the ground and are re-circulated in the household or office. 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, thus operating as air-coolers. Throughout winter, it draws the heat from under the earths surface and provides warm air or water to the building.
The ground source heat pumps uses a closed loop principle of evaporation of water or liquid refrigerant (that boils at a lower temperature when compared with water and thus forms steam effectively), compression of the vapour formed and the following condensation of the steam to water/liquid refrigerant for air cooling function.
Thus, to put it succinctly, geothermal power is a commendable way of energy use in the modern day world. The merits of its use in the purpose of air cooling and heating are:
1. Geothermal power, being a renewable source, can very easily be utilized over and over again and therefore lessens the risk of energy exhaustion in the long term.
2. As a result of its sustainability and lesser degree of pollution (its use reduces carbon dioxide emissions in a huge way), geothermal power is considered to be ecologically viable source of energy.
3. This source of energy is cost-effective and energy-efficient, making it reliable for future makes use of.
With numerous distinct reasons, there’s no question of why geothermal energy is rising in popularity.
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