METHOD TO USE HEAT-ACCUMULATING PROPERTIES OF SOIL Russian patent published in 2011 - IPC F24D11/02 F28D5/00 

FIELD: construction.

SUBSTANCE: method to use heat-accumulating properties of soil includes arrangement of tight heat exchangers in soil, organisation of a coolant circulation in them and withdrawal from soil, and/or discharge of low-potential heat energy into soil. At the same time due to the temperature mode of coolant, hidden heat of phase transitions of pore moisture contained in soil massif is also involved into a heat-exchange process, at the same time the temperature mode of coolant provides for at least a single reduction of coolant temperature at the inlet to a heat exchanger below 0°C during a year and freezing a part of soil massif that surrounds the heat exchanger when heat is extracted from soil, and for at least a single reverse transition of the coolant temperature via 0°C with involvement of hidden freezing heat into the heat exchange process and thawing of pore moisture contained in the soil massif, besides, due to the temperature mode of the coolant, in the pore space of the soil massif part that surrounds the soil heat exchanger, there is at least a single condensation of water vapours provided when extracting low-potential heat from soil and at least a single evaporation of pore moisture when the heat energy is discharged into soil.

EFFECT: efficient use of soil heat-accumulating properties, active impact at intensity of heat exchange between soil and heat well.

3 cl, 2 dwg