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An acoustically matched traveling-wave thermoacoustic generator achieving 750 W electric power

Author

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  • Wang, Kai
  • Sun, Daming
  • Zhang, Jie
  • Xu, Ya
  • Luo, Kai
  • Zhang, Ning
  • Zou, Jiang
  • Qiu, Limin

Abstract

TWTEG (traveling-wave thermoacoustic electric generator) is promising in efficiently converting the heat of fuel combustion, solar energy, industrial waste heat, etc. into electricity with a very scalable power output. Based on the decoupling method and theoretical analysis, the acoustic impedance requirements of the TWTE (traveling-wave thermoacoustic engine) and LAs (linear alternators) to reach an efficient and powerful operation state were studied quantitatively. A 1 kW level traveling-wave thermoacoustic electric generator was then built for experimental study. Good matching conditions of acoustic impedances were then experimentally demonstrated by modulating the working frequency, load resistance, and electric reactance of the thermoacoustic electric generator, which agreed well with the theoretical analysis. A maximum electric power output of 750.4 W and a highest thermal-to-electric efficiency of 0.163 have been achieved by the acoustically matched thermoacoustic electric generator with helium of 3.16 MPa as the working gas. This work would be instructive for the acoustic matching and designs of high-performance thermoacoustic electric generation systems.

Suggested Citation

  • Wang, Kai & Sun, Daming & Zhang, Jie & Xu, Ya & Luo, Kai & Zhang, Ning & Zou, Jiang & Qiu, Limin, 2016. "An acoustically matched traveling-wave thermoacoustic generator achieving 750 W electric power," Energy, Elsevier, vol. 103(C), pages 313-321.
    • Handle: RePEc:eee:energy:v:103:y:2016:i:c:p:313-321
    DOI: 10.1016/j.energy.2016.03.001
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    Cited by:

    1. Chen, Geng & Tang, Lihua & Mace, Brian & Yu, Zhibin, 2021. "Multi-physics coupling in thermoacoustic devices: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).
    2. Jin, Tao & Yang, Rui & Wang, Yi & Liu, Yuanliang & Feng, Ye, 2016. "Phase adjustment analysis and performance of a looped thermoacoustic prime mover with compliance/resistance tube," Applied Energy, Elsevier, vol. 183(C), pages 290-298.
    3. Callanan, J. & Nouh, M., 2019. "Optimal thermoacoustic energy extraction via temporal phase control and traveling wave generation," Applied Energy, Elsevier, vol. 241(C), pages 599-612.
    4. Zhang, Shaozhi & Luo, Jielin & Xu, Yiyang & Chen, Guangming & Wang, Qin, 2021. "Thermodynamic analysis of a combined cycle of ammonia-based battery and absorption refrigerator," Energy, Elsevier, vol. 220(C).
    5. Al-Kayiem, Ali & Yu, Zhibin, 2016. "Numerical investigation of a looped-tube travelling-wave thermoacoustic engine with a bypass pipe," Energy, Elsevier, vol. 112(C), pages 111-120.
    6. Tavakolpour-Saleh, A.R. & Zare, Shahryar, 2021. "Justifying performance of thermo-acoustic Stirling engines based on a novel lumped mechanical model," Energy, Elsevier, vol. 227(C).
    7. Mingzhen Li & Jialong Bu & Yupeng Song & Zhongyi Pu & Yuli Wang & Cheng Xie, 2021. "A Novel Fault Location Method for Power Cables Based on an Unsupervised Learning Algorithm," Energies, MDPI, vol. 14(4), pages 1-19, February.
    8. Mosa Machesa & Lagouge Tartibu & Modestus Okwu, 2021. "Prediction of the Oscillatory Heat Transfer Coefficient in Thermoacoustic Refrigerators," Sustainability, MDPI, vol. 13(17), pages 1-17, August.
    9. Wang, Kai & Dubey, Swapnil & Choo, Fook Hoong & Duan, Fei, 2017. "Thermoacoustic Stirling power generation from LNG cold energy and low-temperature waste heat," Energy, Elsevier, vol. 127(C), pages 280-290.
    10. Zhou, Zhiyong & Qin, Weiyang & Zhu, Pei & Shang, Shijie, 2018. "Scavenging wind energy by a Y-shaped bi-stable energy harvester with curved wings," Energy, Elsevier, vol. 153(C), pages 400-412.
    11. Tavakolpour-Saleh, A.R. & Zare, Sh. & Omidvar, A., 2016. "Applying perturbation technique to analysis of a free piston Stirling engine possessing nonlinear springs," Applied Energy, Elsevier, vol. 183(C), pages 526-541.
    12. Napolitano, Marialuisa & Romano, Rosario & Dragonetti, Raffaele, 2017. "Open-cell foams for thermoacoustic applications," Energy, Elsevier, vol. 138(C), pages 147-156.
    13. Zhou, Zhiyong & Qin, Weiyang & Zhu, Pei, 2017. "Harvesting acoustic energy by coherence resonance of a bi-stable piezoelectric harvester," Energy, Elsevier, vol. 126(C), pages 527-534.
    14. Luo, Jiaqi & Zhou, Qiang & Jin, Tao, 2023. "Theoretical and experimental investigation of acoustic field adjustment of a gas-liquid standing-wave thermoacoustic engine," Energy, Elsevier, vol. 276(C).
    15. Qin, Weiyang & Deng, Wangzheng & Pan, Jianan & Zhou, Zhiyong & Du, Wenfeng & Zhu, Pei, 2019. "Harvesting wind energy with bi-stable snap-through excited by vortex-induced vibration and galloping," Energy, Elsevier, vol. 189(C).
    16. Xu, Jingyuan & Hu, Jianying & Sun, Yanlei & Wang, Huizhi & Wu, Zhanghua & Hu, Jiangfeng & Hochgreb, Simone & Luo, Ercang, 2020. "A cascade-looped thermoacoustic driven cryocooler with different-diameter resonance tubes. Part Ⅱ: Experimental study and comparison," Energy, Elsevier, vol. 207(C).

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