Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity
Título del documento: Use of a rotational bench viscometer to study the influence of temperature and agitation speed on vinasse viscosity
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000308730
ISSN: 0104-6632
Autores: 1

2
Instituciones: 1Universidade Estadual de Campinas, Nucleo Interdisciplinar de Planejamento Energetico, Campinas, Sao Paulo. Brasil
2Universidad de Oriente, Departamento de Ingeniería Química, Santiago de Cuba. Cuba
Año:
Periodo: Jun
Volumen: 17
Número: 2
Paginación: 133-141
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés 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
Disciplinas: Química
Palabras clave: Ingeniería química,
Vinaza,
Viscosidad Brookfield,
Efectos de la temperatura,
Agitación,
Análisis de regresión
Keyword: Chemistry,
Chemical engineering,
Vinasse,
Brookfield viscosity,
Temperature effects,
Agitation,
Regression analysis
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