Determination of rheological data from mixing experiments
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F14%3A00221280" target="_blank" >RIV/68407700:21220/14:00221280 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Determination of rheological data from mixing experiments
Original language description
Sludge suspensions and highly concentrated fine-grained suspensions behave mostly like non-Newtonian power law liquids. When designing mixing equipment for suspensions of this kind, the Metzner - Otto concept is often used for calculating the power consumption required for mixing. In this paper, the concept is used for describing the flow behaviour of several types of sludge. Rheological experiments were carried out in a vessel mixed using a curved blade turbine or alternatively an anchor agitator. Thesludge exhibited strongly non-Newtonian behaviour corresponding to the power-law model with the flow index in the range from 0.07 to 0.22 and the coefficient of consistency in the range from 2 to 84 Pa.s^m. The Metzner - Otto constant of the anchor agitator obtained from the literature has been validated for suspensions having such a low flow index. Our work has also proved that sludges can be substituted by model sawdust suspensions, thus facilitating experimental work.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
JP - Industrial processes and processing
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/TA02010243" target="_blank" >TA02010243: Mixing Equipment for Sludge Processing</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
20th International Conference of Process Engineering and Chemical Plant Design - Conference Proceedings
ISBN
978-3-00-047364-7
ISSN
—
e-ISSN
—
Number of pages
12
Pages from-to
211-222
Publisher name
Technische Universität
Place of publication
Berlin
Event location
Berlín
Event date
Oct 15, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—