Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity
Autor(a) principal: | |
---|---|
Data de Publicação: | 2000 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200002 |
Resumo: | Brookfield R.V.T. apparent viscosity measurements of 31.1 to 73º Brix vinasses, with and without nondissolved solids (N.D.S.), were carried out at varying rotation speeds (N) and temperatures (T). A regression analysis of this data was carried out to select the corresponding mathematical models. It was concluded that apparent Brookfield viscosity for low concentration vinasses (up to 52.4º Brix) depends only on linear and quadratic temperature terms. At higher concentrations (66º and 73º Brix) regression models for apparent viscosity, must also include quadratic as well as rotation speed-temperature interaction terms. This behavior is discussed, identifying two types of rheological behaviors and advancing a preliminary hypothesis about the role of solutes, N.D.S. and temperature. |
id |
ABEQ-1_a7427a233776b002451bfa63ee3be038 |
---|---|
oai_identifier_str |
oai:scielo:S0104-66322000000200002 |
network_acronym_str |
ABEQ-1 |
network_name_str |
Brazilian Journal of Chemical Engineering |
repository_id_str |
|
spelling |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosityvinasseBrookfield viscosityregression analysisBrookfield R.V.T. apparent viscosity measurements of 31.1 to 73º Brix vinasses, with and without nondissolved solids (N.D.S.), were carried out at varying rotation speeds (N) and temperatures (T). A regression analysis of this data was carried out to select the corresponding mathematical models. It was concluded that apparent Brookfield viscosity for low concentration vinasses (up to 52.4º Brix) depends only on linear and quadratic temperature terms. At higher concentrations (66º and 73º Brix) regression models for apparent viscosity, must also include quadratic as well as rotation speed-temperature interaction terms. This behavior is discussed, identifying two types of rheological behaviors and advancing a preliminary hypothesis about the role of solutes, N.D.S. and temperature.Brazilian Society of Chemical Engineering2000-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200002Brazilian Journal of Chemical Engineering v.17 n.2 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000200002info:eu-repo/semantics/openAccessBrossard Perez,L.E.Bezzon,G.Olivares Gómez,E.Cortez,L.A.B.eng2000-07-06T00:00:00Zoai:scielo:S0104-66322000000200002Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2000-07-06T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
title |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
spellingShingle |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity Brossard Perez,L.E. vinasse Brookfield viscosity regression analysis |
title_short |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
title_full |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
title_fullStr |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
title_full_unstemmed |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
title_sort |
Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity |
author |
Brossard Perez,L.E. |
author_facet |
Brossard Perez,L.E. Bezzon,G. Olivares Gómez,E. Cortez,L.A.B. |
author_role |
author |
author2 |
Bezzon,G. Olivares Gómez,E. Cortez,L.A.B. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Brossard Perez,L.E. Bezzon,G. Olivares Gómez,E. Cortez,L.A.B. |
dc.subject.por.fl_str_mv |
vinasse Brookfield viscosity regression analysis |
topic |
vinasse Brookfield viscosity regression analysis |
description |
Brookfield R.V.T. apparent viscosity measurements of 31.1 to 73º Brix vinasses, with and without nondissolved solids (N.D.S.), were carried out at varying rotation speeds (N) and temperatures (T). A regression analysis of this data was carried out to select the corresponding mathematical models. It was concluded that apparent Brookfield viscosity for low concentration vinasses (up to 52.4º Brix) depends only on linear and quadratic temperature terms. At higher concentrations (66º and 73º Brix) regression models for apparent viscosity, must also include quadratic as well as rotation speed-temperature interaction terms. This behavior is discussed, identifying two types of rheological behaviors and advancing a preliminary hypothesis about the role of solutes, N.D.S. and temperature. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322000000200002 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.17 n.2 2000 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213170696683520 |