- Conference date: 5–8 September 2011
- Location: Gdańsk, Poland
Thermoacoustic cooling systems are drawing attention as next-generation eco-systems that can reuse and transform unused energy such as exhaust energy and solar energy. For the practical use of such systems, improvement of heat-sound energy conversion efficiency remains as an important challenge. We proposed a Phase Adjuster as a device for improving energy conversion efficiency However, the mechanism for that improvement remains unclear. Herein, to ascertain the reason, a parameter prediction method for determining the acoustic field was investigated by dividing the system into two parts: a Prime Mover (PM) part and a Phase Adjuster (PA) part. Consequently, the acoustic impedance cross-point of the PM part and the PA part on a complex plane is expected to represent a resonance frequency and a steady-state temperature ratio of the self-excited oscillation system.
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