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Cavitation Reactor for Pretreatment of Liquid Agricultural Waste

Author

Listed:
  • Alexey Abdrashitov

    (Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia)

  • Alexander Gavrilov

    (Department of Radio Electronics, Kazan Federal University, 420008 Kazan, Russia)

  • Evgeny Marfin

    (Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia)

  • Vladimir Panchenko

    (Department of Theoretical and Applied Mechanics, Russian University of Transport, 127994 Moscow, Russia)

  • Andrey Kovalev

    (Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia)

  • Vadim Bolshev

    (Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia)

  • Julia Karaeva

    (Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia)

Abstract

One of the most well-known methods of intensifying the process of anaerobic digestion is the pretreatment of raw materials. For the first time, the use of a jet-driven Helmholtz oscillator for biomass pretreatment is proposed. The design of the device is optimal for creating hydraulic cavitation; however, in this case, acoustic oscillations are generated in the system and resonance occurs. In this study, the optimal design of this device was determined for the subsequent design of a cavitation reactor. The diameter of the resonant chamber was varied in the range from 28.3 to 47.5 mm, and its length from 6 to 14 mm; in addition, the diameter of the outlet was changed from 6.1 to 6.3 mm. Based on the experimental data obtained, it was found that the optimal ratio of the length of the resonator chamber to the diameter of the inlet nozzle is 1.73, and the inner diameter of the resonator chamber to the diameter of the inlet nozzle corresponds to 5.5. Improving the technology of agricultural waste disposal will ensure their maximum involvement in economic circulation, reduce the consumption of traditional fuel and energy resources, and improve the technological and machine-building base, which makes it possible to produce competitive cavitation reactors.

Suggested Citation

  • Alexey Abdrashitov & Alexander Gavrilov & Evgeny Marfin & Vladimir Panchenko & Andrey Kovalev & Vadim Bolshev & Julia Karaeva, 2023. "Cavitation Reactor for Pretreatment of Liquid Agricultural Waste," Agriculture, MDPI, vol. 13(6), pages 1-15, June.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:6:p:1218-:d:1167282
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    References listed on IDEAS

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    2. Ge, Mingming & Manikkam, Pratulya & Ghossein, Joe & Kumar Subramanian, Roshan & Coutier-Delgosha, Olivier & Zhang, Guangjian, 2022. "Dynamic mode decomposition to classify cavitating flow regimes induced by thermodynamic effects," Energy, Elsevier, vol. 254(PC).
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