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Measurement of the rheology of disti...

Houchin, Tiffany Leigh.

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Measurement of the rheology of distillers' grain slurries using a helical impeller viscometer.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Measurement of the rheology of distillers' grain slurries using a helical impeller viscometer./
作者:	Houchin, Tiffany Leigh.
面頁冊數:	97 p.
附註:	Source: Masters Abstracts International, Volume: 42-03, page: 0989.
Contained By:	Masters Abstracts International42-03.
標題:	Engineering, Chemical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1417038
ISBN:	0496218227

Measurement of the rheology of distillers' grain slurries using a helical impeller viscometer.
Houchin, Tiffany Leigh.

Measurement of the rheology of distillers' grain slurries using a helical impeller viscometer. - 97 p.

Source: Masters Abstracts International, Volume: 42-03, page: 0989.

Thesis (M.Eng.)--University of Louisville, 2003.

Currently, research and development is being conducted to improve the economic value of distillers' grains, the bottoms product of corn dry mill ethanol distillation. Little is known about the flow behavior of distillers' grains. The rheological properties of distillers' grains were examined in this study.

ISBN: 0496218227Subjects--Topical Terms:

1018531
Engineering, Chemical.

Measurement of the rheology of distillers' grain slurries using a helical impeller viscometer.
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245 1 0 $a Measurement of the rheology of distillers' grain slurries using a helical impeller viscometer.
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500 $a Source: Masters Abstracts International, Volume: 42-03, page: 0989.
500 $a Director: Thomas Hanley.
502 $a Thesis (M.Eng.)--University of Louisville, 2003.
520 $a Currently, research and development is being conducted to improve the economic value of distillers' grains, the bottoms product of corn dry mill ethanol distillation. Little is known about the flow behavior of distillers' grains. The rheological properties of distillers' grains were examined in this study.
520 $a Distillers' grain slurries are non-Newtonian, heterogeneous fluids subject to particle settling. Traditional methods of viscosity measurement, such as cone and plate and concentric cylinder are not adequate in determining rheological properties of these fluids. A helical impeller viscometer was employed to accurately measure impeller torque over a range of rotational speeds.
520 $a Newtonian and non-Newtonian calibration fluids were utilized to obtain constants that relate shear stresses and shear rates to the experimental data. Newtonian calibration fluids were used to determine the impeller constant, c, while non-Newtonian calibration fluids were used to calculate the shear rate constant, k. The calculated average impeller constant was 151. The average shear rate constant calculated was 10.3.
520 $a Distillers' grain slurries of 21, 23, and 25 percent solids concentration were examined using the helical impeller method. The rheological behavior of the slurries was fit to three empirical viscosity models: power law, Herschel-Bulkley, and Casson models. Regression coefficient (R2) ranges for each model were: 0.9925--0.9995 (power law), 0.9977--0.9996 (Herschel-Bulkley), and 0.9970--0.9977 (Casson). The power law and Casson empirical models were adequate methods for modeling rheological behavior of distillers' grain slurries of concentrations between 21 and 25 percent solids.
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