Abstract

A thermoacoustic refrigerator is a equipment that pumps up heat by acoustic sound. A resonance pipe refrigerator, which is one of thermoacoustic refrigerators, has many advantages, such as compact, simple structure, no moving parts, and so on. We made a resonance pipe refrigerator and verified its operation. A stack, which serves as a heat storage element, was inserted in the resonance pipe. Temperature difference of the stack ends, was measured by changing location of the stack in the pipe. It is indicated that the suitable position of the stack is in between pressure node and antinode of sound wave. Possibility of multi-stack operation is also discussed.

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