Journal of Zhejiang University

Journal of Zhejiang University SCIENCE A

Accepted manuscript available online (unedited version)

Acoustic impedance characteristics of linear compressors

Author(s): Zhi-hua Gan¹, Long-yi Wang¹, Sheng-ying Zhao², Yu-jing Song¹, Wei-wei Wang¹, Yi-nong Wu³
Affiliation(s): 1. Institute of Cryogenics and Refrigeration, Zhejiang University, Hangzhou 310027, China;2. School of Information and Electrical Engineering, Zhejiang University City College, Hangzhou 310015, China;3. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
Corresponding email(s): zhaosy@zucc.edu.cn
Key Words: Linear compressor, Acoustic impedance, Resistive-capacitive (RC) load

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Zhi-hua Gan, Long-yi Wang, Sheng-ying Zhao, Yu-jing Song, Wei-wei Wang, Yi-nong Wu. Acoustic impedance characteristics of linear compressors[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A1300113

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author="Zhi-hua Gan, Long-yi Wang, Sheng-ying Zhao, Yu-jing Song, Wei-wei Wang, Yi-nong Wu",
journal="Journal of Zhejiang University Science A",
year="in press",
publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/jzus.A1300113"
}

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%A Zhi-hua Gan
%A Long-yi Wang
%A Sheng-ying Zhao
%A Yu-jing Song
%A Wei-wei Wang
%A Yi-nong Wu
%J Journal of Zhejiang University SCIENCE A
%P 494-503
%@ 1673-565X
%D in press
%I Zhejiang University Press & Springer
doi="https://doi.org/10.1631/jzus.A1300113"

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T1 - Acoustic impedance characteristics of linear compressors
A1 - Zhi-hua Gan
A1 - Long-yi Wang
A1 - Sheng-ying Zhao
A1 - Yu-jing Song
A1 - Wei-wei Wang
A1 - Yi-nong Wu
J0 - Journal of Zhejiang University Science A
SP - 494
EP - 503
%@ 1673-565X
Y1 - in press
PB - Zhejiang University Press & Springer
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doi="https://doi.org/10.1631/jzus.A1300113"

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: The acoustic field of a linear compressor serves to deliver the compression work to the load, such as the connected cold head of a cryocooler; it plays an equivalently important role as the electrical and mechanical parts, especially in the impedance match issue. This paper studies the acoustic impedance characteristics of a linear compressor. The parameters including the current, the piston displacement, the pressure amplitude, the electrical power dissipation, the power factor, the pressure-volumetric (PV) power delivered, and the efficiency are theoretically and experimentally investigated. Different from previous theoretical studies, optimization for the operations away from the resonance is also included. More general optimization results imply relevance between thermoacoustic engines and linear compressors. The predicted results are validated by the experiments performed on a linear compressor with an adjustable resistive-capacitive (RC) acoustic load. The comparisons between the calculations and the measurements are presented and analyzed. The results provide deeper insight into the mechanism of the linear compressor and the impedance match in a cryocooler system.

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References

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