浙江大学学报(工学版)  2017, Vol. 51 Issue (8): 1619-1625    DOI: 10.3785/j.issn.1008-973X.2017.08.018
 机械与能源工程

Operating characteristics of crank-rod transducer used in thermoacoustic power generation
LUO Kai, SUN Da-ming, ZHANG Jie, ZHANG Ning, WANG Kai, XU Ya, ZOU Jiang
Zhejiang Province Key Laboratory of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China
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Abstract:

A mathematical-physical model of crank-rod transducer (CRT) used in thermoacoustic power generation system (TAGS) was developed. The effects of design parameters (such as piston weight, rotational inertia, pressure amplitude and electrical load) on the working performance of the CRT were analyzed. Due to its fixed stroke, the impedance amplitude of CRT is determined by the pressure amplitude, frequency, stoke and area of piston, while the phase angle is decided both by driving pressure amplitude and electrical resistance. When the driving pressure has an amplitude of 0.2 MPa, frequency of 65 Hz, with an electrical load of 110 Ω, the real part of CRT impedance is 1.244×107 Pa·s/m3, the imaginary part is -1.209×107 Pa·s/m3,outputting 680.1 W electrical power with an acoustic-electrical efficiency of 82.2%.

 CLC: TM61

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LUO Kai, SUN Da-ming, ZHANG Jie, ZHANG Ning, WANG Kai, XU Ya, ZOU Jiang. Operating characteristics of crank-rod transducer used in thermoacoustic power generation. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(8): 1619-1625.

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