Design and experiment on a mini cascade thermoacoustic engine.
A miniature cascade thermoacoustic engine had been designed and tested, which length was about 1m, operating at 500 Hz. Pilot study and experimental results shown a rather good agreement between measured and calculated pressure fields and temperatures distributions in the thermoaoustic engine. The peak-to-peak value of the acoustic pressure was 0.02 MPa at the 1.8 MPa charged pressure of helium. Some efforts had been made to extend the traveling-wave region based on the analysis of the acoustic impedance.
Hu
Zhongjun
Z
Technical Institute of Physics and Chemistry, CAS, Beijing, PR China.
Li
Qing
Q
Xie
Xiujuan
X
Zhou
Gang
G
Li
Qiang
Q