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The D 2 -Law of Droplet Evaporation When Calculating the Droplet Evaporation Process of Liquid Containing Solid State Catalyst Particles

Author

Listed:
  • Marek Ochowiak

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
    Kuncar S.A., Pszczyńska 167C, 43-175 Wyry, Poland)

  • Zdzisław Bielecki

    (Kuncar S.A., Pszczyńska 167C, 43-175 Wyry, Poland
    Department of Automatic Control and Robotics, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland)

  • Michał Bielecki

    (EMAG Instytut Badawczy Sieć Badawcza Łukasiewicz-Instytut Technik Innowacyjnych EMAG, Leopolda 31, 40-189 Katowice, Poland)

  • Sylwia Włodarczak

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland)

  • Andżelika Krupińska

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland)

  • Magdalena Matuszak

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland)

  • Dariusz Choiński

    (Department of Automatic Control and Robotics, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland)

  • Robert Lewtak

    (Institute of Power Engineering, Department of Thermal Processes, Mory 8, 01-330 Warsaw, Poland)

  • Ivan Pavlenko

    (Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 40007 Sumy, Ukraine)

Abstract

The review presents the D 2 -law of droplet evaporation, which is used to describe the spraying process involving the evaporation of droplets. This law, the subject of numerous publications, can be successfully applied to describe the droplet evaporation process under various conditions, including the calculations of the process of feeding the boiler with a liquid that contains catalyst particles. To date, not a lot of work has been devoted to this issue. The paper is a continuation of previous research concerning the spraying of liquids with a catalyst, which improves the efficiency of the process. The conducted analysis showed that the experimental data from previously published work are very compatible with the data obtained from the D 2 -law of droplet evaporation. At the standard speed of about 20 m/s of an aerosol flowing through a dust duct, droplets in the stream should be observed up to a distance of 1 m from the outlet of the apparatus supplying the system. Under such flow conditions, a droplet’s lifetime must be above 0.05 s. The dependence between a droplet’s lifetime and its diameter and temperature was determined. The obtained results confirmed that the effective droplet diameter is above 30 µm. Such droplets must be generated and then fed to the boiler for the catalyst to work properly. This law is an engineering approach to the problem, which uses relatively simple model equations in order to determine the evaporation time of a droplet.

Suggested Citation

  • Marek Ochowiak & Zdzisław Bielecki & Michał Bielecki & Sylwia Włodarczak & Andżelika Krupińska & Magdalena Matuszak & Dariusz Choiński & Robert Lewtak & Ivan Pavlenko, 2022. "The D 2 -Law of Droplet Evaporation When Calculating the Droplet Evaporation Process of Liquid Containing Solid State Catalyst Particles," Energies, MDPI, vol. 15(20), pages 1-10, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:20:p:7642-:d:943903
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    References listed on IDEAS

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    1. Zdzisław Bielecki & Marek Ochowiak & Sylwia Włodarczak & Andżelika Krupińska & Magdalena Matuszak & Robert Lewtak & Jarosław Dziuba & Ernest Szajna & Dariusz Choiński & Marcin Odziomek, 2021. "The Analysis of the Possibility of Feeding a Liquid Catalyst to a Coal Dust Channel," Energies, MDPI, vol. 14(24), pages 1-14, December.
    2. Zdzisław Bielecki & Marek Ochowiak & Sylwia Włodarczak & Andżelika Krupińska & Magdalena Matuszak & Krzysztof Jagiełło & Jarosław Dziuba & Ernest Szajna & Dariusz Choiński & Marcin Odziomek & Tomasz R, 2022. "The Optimal Diameter of the Droplets of a High-Viscosity Liquid Containing Solid State Catalyst Particles," Energies, MDPI, vol. 15(11), pages 1-13, May.
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    Cited by:

    1. Marek Ochowiak & Zdzisław Bielecki & Andżelika Krupińska & Magdalena Matuszak & Sylwia Włodarczak & Michał Bielecki & Dariusz Choiński & Jarosław Smyła & Krzysztof Jagiełło, 2023. "Pulverized Coal-Fired Boilers: Future Directions of Scientific Research," Energies, MDPI, vol. 16(2), pages 1-15, January.

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