Patent ID: 6293120
Filing Date: 2001-09-25
Classification: F24D,F24F,F24S,F24T,F28D,F28F,Y02A,Y02B,Y02E

Abstract:
A building air conditioning system using geothermal energy, comprising:an underground pipe having a length within the range of from approximately 1 m to approximately 10 m, said underground pipe buried underground for introducing air from the outdoors into the inside thereof so as to transmit geothermal energy from the underground to said introduced air,a cobble stone layer constituted by filling numerous cobble stones in a space under the floor of a building, said cobble stone layer having a height within the range of from approximately 250 mm to approximately 1,000 mm, said cobble stone layer storing geothermal energy in said numerous cobble stones and air layers existing in minute clearances between said numerous cobble stones, said cobble stone layer introducing said air to be transmitted geothermal energy in said underground pipe into the inside thereof, said cobble stone layer heat-exchanging said introduced air with geothermal energy stored in said numerous cobble stones and said air layers, controlling humidity of said air by attaching water vapor contained in said air onto the surface of said numerous cobble stones when much-moisturized air moves in said cobble stone layer and by supplying moisture deposited on the surface of said numerous cobble stones to said air when dry air moves in said cobble stone layer, and cleaning said air by attaching minute impurities such as dust contained in said air onto moisture deposited on the surface of said numerous cobble stones when said air moves in said cobble stone layer, andair supply means for supply said air from said cobble stone layer to an inside of a room of the building.