METHOD OF PRODUCING GASEOUS COOLANT Russian patent published in 2021 - IPC F28C3/12 F25D3/12 

FIELD: heat exchange.

SUBSTANCE: invention relates to the field of heat exchange processes between solid material and gaseous heat carrier, which is washing this material, for example, when cooling air with carbon dioxide. Method of producing gaseous coolant through feeding gas into heat exchanger and sublimation of solid granulated coolant in fluidised bed mode, in which compressed gas is used as gas. Sublimation is carried out in a homogeneous mode of the fluidised bed, feeding compressed gas into the heat exchanger chamber at preset pressure at supercritical flow at constant flow rate.

EFFECT: technical result is increase in cooling capacity due to intensive evaporation of carbon dioxide in boiling layer and operation of the fluidised bed in a homogeneous mode due to stabilization of compressed gas flow supplied to the heat exchanger, at critical pressure drop at the inlet, which ensures uniform blowing of the test object.

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