FIELD: refrigerating engineering. SUBSTANCE: device for cooling the chamber has fan whose one branch pipe is brought in communication with passages supplying the air from atmosphere and recirculating the gas medium and its other branch pipe is brought in communication with gas distribution passage through the air delivery duct. Device is also provided with liquefied gas supply system and device for excitation of ultrasonic oscillations of the medium made in form of gas-dynamic siren with rod-type resonator located in the mixing chamber. Outlet end of liquefied gas supply pipe line is located at the end surface of the rod-type resonator. EFFECT: enhanced efficiency. 1 dwg
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