Comprehensive loop testing of a broadly graded (4-component) slurry

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comprehensive loop testing of a broadly graded (4-component) slurry

Popis výsledku v původním jazyce

A 4-component model for settling slurry pipeline friction loss has been previously described by Wilson and Sellgren. The goal of the present work was to collect a comprehensive and accurate data set spanning multiple flow regimes for the purpose of validating and calibrating the model. This was accomplished by obtaining four different graded silica and crushed granite products representing the four model components. These were then combined and tested in permutations from the individual components to the complete mixture at various concentrations. Primary experiments were carried out in a 203 mm (8 inch) pipeline with selected corresponding experiments repeated in a 103 mm (4 inch) pipeline for validation of pipe size scaling. In all, 40 tests were performed with particle sizes ranging from minus 40 µm to 12.5 mm, d50 particle sizes from minus 40 µm to 7.5 mm, and delivered solids concentrations from 4% to 38% by volume. Particle size distributions varied from very narrow to very broad, with d85/d50 ratios ranging from 1.3 to 30. Analysis of the data suggested the introduction of two new correlating factors which have resulted in good agreement between the comprehensive data set and the revised model.

Název v anglickém jazyce

Comprehensive loop testing of a broadly graded (4-component) slurry

Popis výsledku anglicky

A 4-component model for settling slurry pipeline friction loss has been previously described by Wilson and Sellgren. The goal of the present work was to collect a comprehensive and accurate data set spanning multiple flow regimes for the purpose of validating and calibrating the model. This was accomplished by obtaining four different graded silica and crushed granite products representing the four model components. These were then combined and tested in permutations from the individual components to the complete mixture at various concentrations. Primary experiments were carried out in a 203 mm (8 inch) pipeline with selected corresponding experiments repeated in a 103 mm (4 inch) pipeline for validation of pipe size scaling. In all, 40 tests were performed with particle sizes ranging from minus 40 µm to 12.5 mm, d50 particle sizes from minus 40 µm to 7.5 mm, and delivered solids concentrations from 4% to 38% by volume. Particle size distributions varied from very narrow to very broad, with d85/d50 ratios ranging from 1.3 to 30. Analysis of the data suggested the introduction of two new correlating factors which have resulted in good agreement between the comprehensive data set and the revised model.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 20th International Conference on HYDROTRANSPORT

ISBN

9781855981591

ISSN

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e-ISSN

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Počet stran výsledku

17

Strana od-do

307-323

Název nakladatele

BHRG

Místo vydání

London

Místo konání akce

Melbourne

Datum konání akce

3. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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