Rheological Characterization of Shear-Thinning Fluids with a Novel Viscosity Equation of a Tank-Tube Viscometer

Kyung C. Kwon 1 , YoonKook Park 2 , Tamara Floyd 1 , Nader Vahdat 1 , Erica Jackson 1  and Paul Jones 3
  • 1 Department of Chemical Engineering, Tuskegee University, AL 36088, Tuskegee
  • 2 Chemical System Engineering, Hongik University, Chungnam
  • 3 , OH 45201, Cincinnati

Abstract

A tank-tube viscometer and its novel viscosity equation were developed to determine flow characteristics of non-Newtonian fluids. The objective of this research is to test capabilities of the tank-tube viscometer and its novel non-Newtonian viscosity equation by characterizing rheological behaviors of well-known polyethylene oxide (MW 8000000) aqueous solutions as non-Newtonian fluids with 60-w% sucrose aqueous solution as a reference calibration fluid. Non-Newtonian characteristics of 0.3 - 0.7 wt% polyethylene oxide aqueous solutions were extensively investigated with the tank-tube viscometer and its non-Newtonian viscosity equation over the 294 - 306 K temperature range, and 55 - 784 s-1 shear rate range. The 60-w% sucrose aqueous solution was used as a reference/calibration fluid for the tank-tube viscometer. Dynamic viscosity values of 60 w% sucrose aqueous solution were determined with the calibrated tank-tube viscometer and its Newtonian viscosity equation at 299.15 K, and compared with the literature values.

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  • [1] Shackleton ME, Green RG: On-line viscometer for measurement in the range 1 to 100 Pa, Measurement Science & Technology 4 (1993) 395-404.

  • [2] Brodkey RS, Hershey HC, Transport phenomena: A Unified Approach, New York, McGraw-Hill, 1988.

  • [3] Barnes HA, Schimanski H, Derek B: 30 years of progress in viscometers and rheometers, Applied Rheology 9 (1999) 69-76.

  • [4] Barnes HA: An examination of the use of rotational viscometers for the quality control of non-Newtonian liquid products in factories, Applied Rheology 11 (2001) 89-101.

  • [5] Coulson JM, Richardson JF: Chemical Engineering: Chemical Reactor Design, Biochemical Reaction Engineering including Computational Techniques and Control, Vol 3, Pergamon Press, New York, 1984.

  • [6] Skelland AHP: Non-Newtonian Flow and Heat Transfer, John Wiley & Sons, Inc. New York London Sydney, 1967.

  • [7] James C J, Mulcahy DE, Steel BJ: Viscometer calibration standards: viscosities of water between 0 and 60 °C and of selected aqueous sucrose solutions at 25 °C from measurements with a flared capillary viscometer, J. Phys. D: Appl. Phys. 17 (1984) 225-230.

  • [8] Sirivat A, Rajagopal KR, Szeri A: An experimental investigation of the flow of non-Newtonian fluids between rotating disks, J. Fluid Mech. 186 (1988) 243-256.

  • [9] Jimeneza JA, Kostic M: A tank-tube computerized viscometer/rheometer, Rev. Sci Instrum. 65 (1994) 229-241.

  • [10] Bird RB, Stewart WE, Lightfoot EN: Transport Phenomena, John Wiley & Sons, 1960.

  • [11] Kwon KC, Pallerla S and Roy S, Experiments on Viscosity of Aqueous Glycerol Solutions using a Tank-Tube Viscometer, Chemical Engineering Education (1999) 232-237.

  • [12] Kwon KC, Pallerla S: Viscosity of Glycerol and its Aqueous Solutions Measured by a Tank-Tube Viscometer, Chemical Engineering Communications 183 (2000) 71-97.

  • [13] U.S. Patent Application Number 11/439,699 (2006).

  • [14] Perry RH, Green DW: Perry’s Chemical Engineering Handbook, 7th Edition, McGraw-Hill, 1997.

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