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Boiling Synchronization in Two Parallel Minichannels—Image Analysis

Author

Listed:
  • Gabriela Rafałko

    (Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, Poland)

  • Iwona Zaborowska

    (Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, Poland)

  • Hubert Grzybowski

    (Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, Poland)

  • Romuald Mosdorf

    (Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, Poland)

Abstract

In this paper, the boiling synchronization of two-phase flow patterns in two parallel minichannels of 1 mm in diameter with connected compressible volumes was analyzed. The analysis was performed using images recorded with a high-speed camera. The degree of synchronization between channels was evaluated by assessing the presence of liquid flow in the small part of the minichannels. It can be concluded that boiling is synchronized when small bubble flow or wavy annular flow occur in neighboring channels. The occurrence of slug flow in one channel causes the boiling in neighboring channels to become unsynchronized. The result of the image analysis shows that the correlation coefficient based on the evaluation of the presence of liquid flow in the small part of the minichannels over a long enough time period allows for the detection of boiling synchronization.

Suggested Citation

  • Gabriela Rafałko & Iwona Zaborowska & Hubert Grzybowski & Romuald Mosdorf, 2020. "Boiling Synchronization in Two Parallel Minichannels—Image Analysis," Energies, MDPI, vol. 13(6), pages 1-9, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1409-:d:333770
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    References listed on IDEAS

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    1. N. Ibrahim-Rassoul & E.-K. Si-Ahmed & A. Serir & A. Kessi & J. Legrand & N. Djilali, 2019. "Investigation of Two-Phase Flow in a Hydrophobic Fuel-Cell Micro-Channel," Energies, MDPI, vol. 12(11), pages 1-32, May.
    2. Rita Mastrullo & Alfonso William Mauro, 2019. "Peripheral Heat Transfer Coefficient during Flow Boiling: Comparison between 2-D and 1-D Data Reduction and Discussion about Their Applicability," Energies, MDPI, vol. 12(23), pages 1-17, November.
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    Cited by:

    1. Magdalena Piasecka & Beata Maciejewska & Paweł Łabędzki, 2020. "Heat Transfer Coefficient Determination during FC-72 Flow in a Minichannel Heat Sink Using the Trefftz Functions and ADINA Software," Energies, MDPI, vol. 13(24), pages 1-25, December.

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