Development of Motorized Rheometer for measure Cassava-pulp Yield Stress and Viscosity

Development of Motorized Rheometer for measure Cassava-pulp Yield Stress and Viscosity

© 2021 by IJETT Journal
Volume-69 Issue-6
Year of Publication : 2021
Authors : Kiattisak Jaito, Tawarat Treeamnuk, Krawee Treeamnuk
DOI :  10.14445/22315381/IJETT-V69I6P212

How to Cite?

Kiattisak Jaito, Tawarat Treeamnuk, Krawee Treeamnuk, "Development of Motorized Rheometer for measure Cassava-pulp Yield Stress and Viscosity," International Journal of Engineering Trends and Technology, vol. 69, no. 6, pp. 87-92, 2021. Crossref,

This research proposes a motorized high-torque rheometer to determine the yield stress and viscosity of cassava pulp. In the study, experiments are carried out with cassava pulp under variable moisture contents (79.49, 66.78, and 54.19%) and shear rates (12.37, 14.69, and 18.75 s-1). To validate the rheometer, torque calibration is undertaken, and results are in good agreement with actual torque (R2 = 0.9991). The experiments show that the yield stress and moisture content of cassava pulp are inversely correlated, while the yield stress is positively correlated with shear rates. Meanwhile, the moisture content and shear rate are inversely correlated with the viscosity of cassava pulp. Besides cassava pulp, the proposed rheometer is applicable to other materials with high torque whose properties are indeterminate using conventional low-torque rheometers.

Rheometer, Cassava-pulp, Viscosity, Yield Stress

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