An Experimental Study that depend on the Resonance Tube Length for a Thermoacoustic Refrigerator of 1/2 wave

1/2파장 열음향 냉동기의 공명관 길이 의존 특성 연구

The thermoacoustic refrigerator has not only considerable possibility but also commercial usability, because it has high reliability, lower vibration, no moving part, and can easily be constructed. In this study, the resonance characteristics of the thermoacoustic refrigerator were investigated for better performance, varying the length of Resonant Tube to 400mm $\sim850mm$. In order to determine the optimum position of stack in the resonance tube and the frequency, the simple $\lambda/2$ thermoacoustic refrigerator was constructed. It was used air as a coolant. in the fifth harmonic, it was taken the highest ${\Delta}t$ that was $52.6^{\circ}C$ at 827Hz in 400mm tube with 40mm stack.