Values of the head loss coefficients of elbows in the press system
author:
ROBERT MAŃKO, NORBERT LASKOWSKI
ORCID ID:
0000-0001-5592-7709, 0000-0002-2646-2006
No:
12/2022 Instal p. 22-25
DOI:
DOI 10.36119/15.2022.12.4
The paper includes values of local head loss coefficients for elbows with pressed ring, which were obtained by direct
laboratory measurements, by 3D modelling and analytical calculations using classical energy loss formulas. In the
paper, analysis were carried out for three sizes of elbows, the results of which were compared to the values obtained
for connectors of corresponding sizes. The obtained values of the coefficients differed significantly depending on the
way they were determined. Curves of variation of the loss coefficient values as a function of average velocity were developed based on direct measurements and 3D modelling. These curves are characterized by a non-growing course.
Keywords:
About Authors:
Dr inż. Robert Mańko, https://orcid.org/0000-0001-5592-7709, dr inż. Norbert Laskowski, https://orcid.org/0000-0002-2646-2006, Norbert.Laskowski@zut.edu.pl – West Pomeranian University of Technology in Szczecin, Faculty of Civil and Environmental Engineering, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Wydział Budownictwa i Inżynierii Środowiska. Corresponding author: Robert.Manko@zut.edu.p