METHOD OF INDOOR AIR COOLING AND SYSTEM TO THIS END Russian patent published in 2013 - IPC F24F5/00 

FIELD: process engineering.

SUBSTANCE: proposed method consists in cooling fluid in central heating circuit by heat exchange with cold water of cold water supply in liquid-to-liquid cooler. Cooled fluid is directed to multiple heat exchange sections to cool air inside buildings. Cooling system in building furnished with cold water supply circuit 2 and central heating circuit 3 with multiple heat exchange sections 8 and circulation pump 8 comprises cold water flow rate regulator 11 arranged at cold water supply circuit inlet 2, and liquid-liquid cooler 12. Cooling medium in said circuit represents cold water supply circuit cold water while cooled medium represents fluid of central heating circuit 3. Cooling line 14 of cooler 12 is communicated via first pipeline 13 with cold water supply circuit 2 upstream and downstream of regulator 11. Cooled line 16 of cooler 12 is communicated via second pipeline 15 with outlet and inlet of central heating circuit 3 upstream of circulation pump 8.

EFFECT: higher efficiency due to exploiting cold water supply circuit in air conditioning system.