Helmholtz-like resonators for thermoacoustic prime movers
| Autor: | Orest G. Symko, Bonnie Andersen |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Physics
Hot Temperature Acoustics and Ultrasonics Acoustics Thermoacoustics Equipment Design Models Theoretical Prime mover Vibration Prime (order theory) law.invention Resonator Engineering Sound Arts and Humanities (miscellaneous) Stack (abstract data type) Electricity Energy Transfer law Oscillometry Pressure Thermoacoustic heat engine Helmholtz resonator Acoustic resonance |
| Zdroj: | The Journal of the Acoustical Society of America. 125(2) |
| ISSN: | 1520-8524 |
| Popis: | In a thermoacoustic prime mover, high acoustic output power can be achieved with a large-diameter stack and with a cavity with a large volume attached at the open end of the resonator containing the stack. The combination of resonator and cavity makes the device Helmholtz-like, with special characteristics of the resonant frequencies and quality factor, Q. Analysis of its acoustic behavior based on a model of a closed bottle presents features that are useful for the development of such prime movers for energy conversion from heat to sound. In particular, the arrangement produces in the cavity a high sound level, which is determined by the Q of the system. Comparison with a half-wave resonator type of prime mover, closed at both ends, shows the advantages of the Helmholtz-like device. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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