Real values of local resistance coefficients during water flow through a pipe aerator with filling

• Autorzy: Kalenik Marek , Chalecki Marek , Wichowski Piotr , Kiczko Adam , Chmielowski Krzysztof , Świętochowska Martyna , Gwoździej-Mazur Joanna

Identyfikatory

DOI

10.24425/jwld.2023.147242

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of studies on local resistance coefficients (ζ). The study used pipe aerators with filling made according to the Polish patent PL235924. The hydraulic investigations were performed in real working conditions of a water treatment plant in a testing rig built in the Scientific and Research Water Station of the Warsaw University of Life Sciences (SGGW). The investigation encompassed two plastic pipe aerators of an internal diameter 101.6 and 147.6 mm with steel Białecki rings of 12 and 25 mm in diameter. Measurements of pressure difference (Δp) in the investigated aerators were performed at volumetric water flows (Q) selected from the range 2-20 m³∙h^-1 with the interval 2 m³∙s^-1. The values of ζ were determined according to the PN-EN 1267:2012 standard. The investigation showed that the ζ depends both on an internal diameter of the plastic pipe aerator and the diameter of Białecki steel rings. The values of ζ increase with a decrease of the internal diameter of the pipe aerator and a decrease of the ring diameter.

Słowa kluczowe

EN

Bialecki rings; local resistance coefficient; pipe aerator; pressure difference; volumetric water flow

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2023
• Tom: no. 59
• Strony: 174--182
• Opis fizyczny: Bibliogr. 38 poz., fot., rys., tab., wykr.

Twórcy

autor

Kalenik Marek

• Warsaw University of Life Sciences – SGGW, Institute of Environmental Engineering, Department of Hydraulics and Sanitary Engineering, Nowoursynowska 159, 02-776 Warsaw, Poland

• https://orcid.org/0000-0001-6184-1899

autor

Chalecki Marek

• Warsaw University of Life Science – SGGW, Institute of Civil Engineering, Department of Mechanics and Building Structures, Warsaw, Poland

• https://orcid.org/0000-0003-3451-458X

autor

Wichowski Piotr

• Warsaw University of Life Sciences – SGGW, Institute of Environmental Engineering, Department of Hydraulics and Sanitary Engineering, Nowoursynowska 159, 02-776 Warsaw, Poland

• https://orcid.org/0000-0002-9852-7884

autor

Kiczko Adam

• Warsaw University of Life Sciences – SGGW, Institute of Environmental Engineering, Department of Hydraulics and Sanitary Engineering, Nowoursynowska 159, 02-776 Warsaw, Poland

• https://orcid.org/0000-0003-0213-2413

autor

Chmielowski Krzysztof

• University of Science and Technology in Krakow – AGH, Faculty of Drilling, Oil and Gas, Department of Gas Engineering, Krakow, Poland

• https://orcid.org/0000-0001-9758-0854

autor

Świętochowska Martyna

• Bialystok University of Technology, Faculty of Civil Engineering and Environmental Sciences, Department of Water Supply and Sewage Systems, Białystok, Poland

• https://orcid.org/0000-0001-8821-8781

autor

Gwoździej-Mazur Joanna

• Bialystok University of Technology, Faculty of Civil Engineering and Environmental Sciences, Department of Water Supply and Sewage Systems, Białystok, Poland

• https://orcid.org/0000-0002-3972-2129

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).