Model suspension for measurements of process characeteristics of impellers used for mixing of sludge suspensions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F13%3A00208373" target="_blank" >RIV/68407700:21220/13:00208373 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Model suspension for measurements of process characeteristics of impellers used for mixing of sludge suspensions

Popis výsledku v původním jazyce

Sludge suspensions exhibit significant non-Newtonian flow behaviour very often, which causes problems in mixing during their processing. Experimental work with these suspensions is not convenient due to several problems like hygiene, smell, storage, etc.Therefore, the paper is focused on finding a model suspension, whose properties correspond to the properties of real sludge and which would be more convenient for the further experimental work. There were measured densities and flow behaviour of severaltypes of real sludges. The flow properties were obtained from rheological experiments based on Metzner and Otto concept. The sludge suspensions were mixed in a vessel by retreat curved blade impeller having known Metzner and Otto constant. From values of torque and rotations of the impeller the flow properties where determined. The sludge exhibited strong non-Newtonian behaviour corresponding to power law model with flow index in range from 0.07 to 0.22 and coefficient of consistency in

Název v anglickém jazyce

Model suspension for measurements of process characeteristics of impellers used for mixing of sludge suspensions

Popis výsledku anglicky

Sludge suspensions exhibit significant non-Newtonian flow behaviour very often, which causes problems in mixing during their processing. Experimental work with these suspensions is not convenient due to several problems like hygiene, smell, storage, etc.Therefore, the paper is focused on finding a model suspension, whose properties correspond to the properties of real sludge and which would be more convenient for the further experimental work. There were measured densities and flow behaviour of severaltypes of real sludges. The flow properties were obtained from rheological experiments based on Metzner and Otto concept. The sludge suspensions were mixed in a vessel by retreat curved blade impeller having known Metzner and Otto constant. From values of torque and rotations of the impeller the flow properties where determined. The sludge exhibited strong non-Newtonian behaviour corresponding to power law model with flow index in range from 0.07 to 0.22 and coefficient of consistency in

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

<a href="/cs/project/TA02010243" target="_blank" >TA02010243: Míchací zařízení pro zpracování kalových suspenzí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

XXI Ogólnopolska Konferencja Inżynierii Chemicznej i Procesowej - Materiały konferencyjne

ISBN

978-83-7518-596-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Zachodniopomorski Uniwersytet Technologiczny w Szczecinie

Místo vydání

Szczecin

Místo konání akce

Kolobrzeg

Datum konání akce

2. 9. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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