Abstract
Experimental investigation on the phenomena of direct flowing out of cooled air from a thermoacoustic refrigerator was made. Cooled air in the acoustic refrigerator was blown naturally by pressure change in the refrigerator without any valve, the inside air was cooled by thermoacoustic effect and the air was blown out by acoustic pressure. The flow rate of the air increased with the power input to the acoustic driver and with the outlet diameter. On the other hand, the temperature difference decreased with their increase.
