Speaker
Dr
ZhengYu Li
(Technical Institute of Physics and Chemistry,CAS)
Description
This paper proposes a thermoacoustic electricity generator with no resonator, which is generated by a looped-tube traveling-wave thermoacoustic engine coupling with two linear alternators. Linear alternator is the resonating element of the looped-tube thrermoacoustic engine, and its impedance determines the operating status. The clearance between the piston of the alternator and the cylinder exerts a direct influence on the impedance of the alternator, so it plays a great important role in the system’s onset and its performance. A test bed has been set up for the measurement of leakage, and the size of the clearance can be got after data processing. A relative reasonable calculating method is determined through the comparison of the results. This conclusion is used to the calculation based on DeltaE software and an analysis of the influence of impedance change results from the change of clearance and mechanical damp on the system’s performance has been done. At last, a series of experiments has been done for the study of the influence of the change of clearance and mechanical damp results from it on system’s onset and steady operation, and then choose a relative applicable clearance.
Author
Ms
YuFang Wang
(School of Energy and Power Engineering, Huazhong University of Science and Technology)
Co-authors
Dr
Gang Zhou
(Technical Institute of Physics and Chemistry,CAS)
Prof.
Qing Li
(Technical Institute of Physics and Chemistry, CAS)
Dr
ZhengYu Li
(Technical Institute of Physics and Chemistry,CAS)
