Design of Standing Wave Type Thermoacoustic Prime Mover for 300 Hz Operating Frequency

Abstract

Presented at the 16th International Cryocooler Conference, held May 17-20, 2008 in Atlanta, Georgia.Thermoacoustically driven pulse tube cryocoolers are gaining significant interest in the recent time due to the key advantage of complete absence of moving components for the entire system. The present work gives a simple design procedure for a 300 Hz Standing Wave-Type Thermoacoustic Prime Mover having a parallel plate type stack. The necessary code is written in MATLAB for solving the Rott’s wave equation. The code is validated by comparing the results with those available in the literature. The work further reports the effect of operating and geometrical parameters on the performance of the standing wave-type thermoacoustic prime mover. The system performance, mainly in terms of acoustic power and pressure ratio, is influenced significantly by the operating and geometrical parameters. The operating parameters are heat input, hot end temperature, frequency, filling pressure. The geometrical parameters are the stack length, the stack position, the resonator length and the dimensions of the acoustic amplifier, etc

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