title: Design and experiment on a mini cascade thermoacoustic engine.
abstract: 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.
authors.affiliation: Technical Institute of Physics and Chemistry, CAS, Beijing, PR China.
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Hu
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Xiujuan
authors.initials: X
authors.lastname: Xie
authors.forename: Gang
authors.initials: G
authors.lastname: Zhou
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li