Estudo do efeito da temperatura sobre o comportamento reológico das polpas de gabiroba e goiaba - doi: 10.4025/actascitechnol.v33i1.5852

Ricardo Cardoso de Oliveira; Robson Marcelo Rossi; Sueli Teresa Davantel de Barros

doi:10.4025/actascitechnol.v33i1.5852

Study of temperature effect on rheological behavior of gabiroba and guava pulps - doi: 10.4025/actascitechnol.v33i1.5852

Ricardo Cardoso de Oliveira UEM
Robson Marcelo Rossi UEM
Sueli Teresa Davantel de Barros UEM

DOI: https://doi.org/10.4025/actascitechnol.v33i1.5852

Keywords: Rheological, pulp, gabiroba, guava

Abstract

In this work a study on the rheological behavior of the guava and gabiroba pulp were studied in temperature range from 20 – 35°C. The rheological measurements were made in Brookfield rheometer equipped with coaxial cylinder. The rheograms were adjusted from the experimental data for the models of Ostwald de Waale, Bingham and Herschell-Buckley by Bayesian methodology. For both the pulps the pseudo plastic behavior was found, and pseudo plasticity was bigger at low temperatures. Considering the Ostwald de Waale model, the viscosity and consistency index decreased with the rising of the temperature while index of behavior increased with the rising of the temperature.

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Author Biographies

Ricardo Cardoso de Oliveira, UEM

Atualmente é professor do Colégio Nobel e professor da Universidade Estadual de Maringá. Tem experiência na área de Engenharia Química, atuando principalmente nos seguintes temas: microfiltração, pervaporação e reologia Currículo Lattes

Robson Marcelo Rossi, UEM

Departamento de Estatística

Sueli Teresa Davantel de Barros, UEM

Departamento de Engenharia Química

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Published

2011-02-04

How to Cite

Oliveira, R. C. de, Rossi, R. M., & Barros, S. T. D. de. (2011). Study of temperature effect on rheological behavior of gabiroba and guava pulps - doi: 10.4025/actascitechnol.v33i1.5852. Acta Scientiarum. Technology, 33(1), 31-37. https://doi.org/10.4025/actascitechnol.v33i1.5852

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Issue

Vol 33 No 1 (2011)

Section

Chemical Engineering

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