GEOTHERMAL AC

Outdoor temperatures fluctuate with the changing seasons but underground temperatures don’t change as dramatically, thanks to the insulating properties of the earth. Four to six feet below ground, temperatures remain relatively constant year-round.A geothermal system, which typically consists of an indoor handling unit and a buried system of pipes, called an earth loop, and/or a pump to re-injection well, capitalises on these constant temperatures to provide “free” energy. So I and my team decided to downsize a geothermal AC system so that it could be used in small rooms mostly in the rural area.Taking the heat of the room to the tube-well where it will be rejected and taking back the cold water to the water to the heat exchanger which will lower the temperature of the room air. This model can be installed in rural areas. It is much cheaper than the existing geothermal system. In winters the process reverse and will provide warm air to the room.as the underground water is warmer also the earth crust.

(for more knowledge on geothermal http://energyblog.nationalgeographic.com/2013/09/17/10-myths-about-geothermal-heating-and-cooling/ )