Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Towards the development of a test-fluid for isothermal laboratory tests at low-shear rate in sugar and ethanol industry
Submission Author:
Guilherme Henrique Fiorot , RS
Co-Authors:
Guilherme Henrique Fiorot, guilherme salvagnini, João Vital Silva
Presenter: Guilherme Henrique Fiorot
doi://10.26678/ABCM.ENCIT2018.CIT18-0377
Abstract
This manuscript presents the initial results of an ongoing project that have as goal the development and calibration of a test-fluid that could represent a set of molasses and massecuites from sugar and ethanol industry. The importance of viscous properties of complex fluids in that industry resides on the continuous need for increase in efficiency and maintenance of machinery. This paper presents a methodology to obtain a mixture of a Newtonian fluid and a solid granular material and to briefly characterize its viscous properties in low-shear rate for isothermal condition. Falling sphere viscometer was constructed to test glycerin-sugar mixtures at different concentrations and grain-size distribution, employing a set of different falling spheres. The results obtained show that the apparent viscosity of the mixture presents a classical behavior with the concentration and could be used to be associated to massecuites from industry. Further enhancements on this technique should be perform to better be able to predict friction coefficient.
Keywords
massecuite, Rheology, Non-Newtonian fluid, sugar and ethanol industry
