The recycling of semisynthetic metalworking fluids (MWFs) using alumina membranes is significantly impacted by aggregated MWF microemulsions that cause partial and complete blocking of membrane pores. In this paper, computational fluid dynamic methods are employed to model both a portion of a sintered alumina membrane with tortuous pores and the microemulsions passing through it. Several particle size distributions, measured experimentally at various times through the membrane service life and under two different cross-flow velocities, were used to determine the particle sizes simulated in the flow. Simulated MWF particles smaller than the largest pore diameter were found to completely block the pore through the build-up of a network of particles that blocked smaller diameter inlets and outlets. The results demonstrate as well that significant membrane flux reduction can occur by partial blocking of pore inlets and outlets even in the absence of complete blocking.
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December 2008
Research Papers
Dynamic Simulations of Alumina Membrane Fouling From Recycling of Semisynthetic Metalworking Fluids
John E. Wentz,
John E. Wentz
Postdoctoral Research Associate
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, Urbana, IL 61801
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Shiv G. Kapoor,
Shiv G. Kapoor
Professor
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, Urbana, IL 61801
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Richard E. DeVor,
Richard E. DeVor
Professor
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, Urbana, IL 61801
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N. Rajagopalan
N. Rajagopalan
Illinois Waste Management and Research Center,
Illinois Department of Natural Resources
, Champaign, IL 61820
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John E. Wentz
Postdoctoral Research Associate
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, Urbana, IL 61801
Shiv G. Kapoor
Professor
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, Urbana, IL 61801
Richard E. DeVor
Professor
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, Urbana, IL 61801
N. Rajagopalan
Illinois Waste Management and Research Center,
Illinois Department of Natural Resources
, Champaign, IL 61820J. Manuf. Sci. Eng. Dec 2008, 130(6): 061015 (11 pages)
Published Online: November 19, 2008
Article history
Received:
April 22, 2008
Revised:
July 8, 2008
Published:
November 19, 2008
Citation
Wentz, J. E., Kapoor, S. G., DeVor, R. E., and Rajagopalan, N. (November 19, 2008). "Dynamic Simulations of Alumina Membrane Fouling From Recycling of Semisynthetic Metalworking Fluids." ASME. J. Manuf. Sci. Eng. December 2008; 130(6): 061015. https://doi.org/10.1115/1.2976149
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