Effect of Particle size distribution in pressure drop for inclined settling aqueous slurry flows in pipes

B.Sc. Ormira Domnori

Master's thesis

Abstract:

This diploma thesis discusses the transportation of solid-liquid mixtures in industrial pipelines, focusing especially in the effect of particle gradation in the pressure losses of the flow in a range of inclination angles from -45 degrees to +45 degrees. Several experiments were carried out in a 100-mm laboratory test loop with an inverted U-tube, using broadly graded sand, and the results are compared with those retrieved from narrow-graded slurry flow tests. The findings support the general idea that slurry flows are sensitive to the inclination angle and the broadly-graded slurries exhibit less friction than the narrow-graded. Existing models for prediction of slurry behavior are analysed and modified for broadly-graded slurries based in empirical correlations. Model and experimental results are presented as findings of this research.

Keywords

settling slurry, inclined flow, pressure losses, particle size distribution, broad gradation

Jazyk práce: English

Datum vytvoření / odevzdání či podání práce: 30. 6. 2020

Obhajoba závěrečné práce

• Vedúci: prof. Dr. Ing. Václav Matoušek

Czech University of Life Sciences Prague

Faculty of Environmental Sciences

Master programme / odbor:
Landscape Engineering / Environmental Modelling