SOLAR HEAT AND COLD SUPPLY SYSTEM Russian patent published in 2015 - IPC F24D15/02 F24J2/42 

FIELD: heating.

SUBSTANCE: invention is intended to maintain comfortable air parameters in low buildings, mainly in cattle farms. Solar heat and cold supply system includes south air duct made of material absorbing solar radiation and north air duct, located at respective building sides, heat collector, together with the building floor forming a subfloor air duct connected to the south air duct, and heat exchange and underground air ducts positioned one over the other below the heat collector, where heat exchange air duct is connected to the north air duct, and underground air duct is equipped with underground heat transfer pipes; the system features a vortex tube in the heat collector, vortex tube input connected to subfloor air duct, cold channel connected to transfer piece, and hot channel connected via heat collector to underground air duct; subfloor and underground air duct outputs are connected to cold channel of vortex tube where a filter is installed downstream of air duct connection point; south and north air ducts are opened to ambient air, and heat exchange air duct is opened to indoor space; special feature of the system is the underground air duct made of composite material including metal base, heat insulation and heat accumulation thin-fibre basalt and waterproof layer, where thin-fibre basalt is stretched lengthwise along underground air duct and attached between metal base and waterproof layer.

EFFECT: prevention of heat loss during long-term operation in variable temperature and humidity conditions of ground, affecting elements of solar heat and cold supply system by implementation of underground pipeline out of composite material with fixated thin-fibre basalt stretched lengthwise between metal base and waterproof layer.

2 dwg