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Effect of Rheological Properties of Aqueous Solution of Na-CMC on Spray Angle for Conical Pressure-Swirl Atomizers

Author

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  • Krystian Czernek

    (Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, Poland)

  • Marek Ochowiak

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

  • Sylwia Włodarczak

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

Abstract

Aerosol is a multiphase system, created as a result of the dispersion of a liquid in a gaseous medium. The atomized liquids are most often water and fuel; however, they can be any other substance. Even a small addition of a substance that changes the rheological properties (i.e., the nature of the flow) can change the properties of the resulting aerosol. The most important parameters that characterize the aerosol are the outflow rate, the droplet diameter, the spray spectrum, and the spray angle. The latter is important when selecting atomizers, especially those working in groups on the sprayer boom. The spray angle is an important parameter of the atomization process, providing a great deal of information about the quality of the spray. This study presents the results of rheological tests and the atomization of aqueous solutions with varying concentrations of sodium carboxymethylcellulose (Na-CMC). We found that the spray angle decreased with increasing Na-CMC concentration in the solution, which is attributable to an increase in shear viscosity. The design of the atomizer is also important. The largest spray angles were obtained for an atomizer with a diameter of 0.02 m and with the inlet port being placed at an angle to the atomizer axis. Based on the experimental results for various liquids and atomizer designs, a correlation equation describing the spray angle is proposed.

Suggested Citation

  • Krystian Czernek & Marek Ochowiak & Sylwia Włodarczak, 2020. "Effect of Rheological Properties of Aqueous Solution of Na-CMC on Spray Angle for Conical Pressure-Swirl Atomizers," Energies, MDPI, vol. 13(23), pages 1-14, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:23:p:6309-:d:453585
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    References listed on IDEAS

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    1. Moo-Yeon Lee & Gee-Soo Lee & Chan-Jung Kim & Jae-Hyeong Seo & Ki-Hyun Kim, 2018. "Macroscopic and Microscopic Spray Characteristics of Diesel and Gasoline in a Constant Volume Chamber," Energies, MDPI, vol. 11(8), pages 1-19, August.
    2. Kihyun Kim & Ocktaeck Lim, 2020. "Investigation of the Spray Development Process of Gasoline-Biodiesel Blended Fuel Sprays in a Constant Volume Chamber," Energies, MDPI, vol. 13(18), pages 1-22, September.
    3. Xiongjie Fan & Cunxi Liu & Yong Mu & Kaixing Wang & Yulan Wang & Gang Xu, 2019. "Experimental Investigations of Flow Field and Atomization Field Characteristics of Pre-Filming Air-Blast Atomizers," Energies, MDPI, vol. 12(14), pages 1-16, July.
    4. Marek Ochowiak & Andżelika Krupińska & Sylwia Włodarczak & Magdalena Matuszak & Małgorzata Markowska & Marcin Janczarek & Tomasz Szulc, 2020. "The Two-Phase Conical Swirl Atomizers: Spray Characteristics," Energies, MDPI, vol. 13(13), pages 1-15, July.
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    Cited by:

    1. Waldemar Fedak & Roman Ulbrich & Grzegorz Ligus & Marek Wasilewski & Szymon Kołodziej & Barbara Wasilewska & Marek Ochowiak & Sylwia Włodarczak & Andżelika Krupińska & Ivan Pavlenko, 2021. "Influence of Spray Nozzle Operating Parameters on the Fogging Process Implemented to Prevent the Spread of SARS-CoV-2 Virus," Energies, MDPI, vol. 14(14), pages 1-19, July.

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