Emmanuel Y.A. Wornyoh - Assistant Professor

Education

Ph.D.- Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, 2009
M.S.- Mechanical Engineering, Texas A&M University, College-Station, 2003
B.Sc. (Honors)- Mechanical Engineering, Kwame Nkrumah University of Science & Technology, Kumasi-Ghana, 1999

Research Motivation
Energy Efficiency and Sustainability for Extreme Environment & Operational Conditions-Conventional and Non-Conventional Energy Sources

Research Interests
Fundamental Tribodynamics, Novel Solid Lubrication Schemes, Frictional Heat Generation, Nanotribology, Green Tribology, Energy Diagnostics, Industrial Energy Assessment.

Director: Tribology and Energy Diagnostics Lab (TEDL)
Co-Director: Co-Director, DOE Industrial Assessment Center @ UWM, webpage: http://www4.uwm.edu/iac/Index.html

Selected Publications

1. Wornyoh, E. Y. A., and Higgs, C. F., 2011, "An Asperity-Based Fractional Coverage Model for Transfer Films on a Tribological Surface," Wear, 270(3-4), pp. 127-139.
2. Wornyoh, E. Y. A., Patel, D. K., and Schuessler, L. D., 2011, "An in Situ Mechanism for the Optimal Cooling of Oil-Lubricated Rolling Element Bearings and Planetary Gear Systems," ASME/IMECE 2011, Paper No. IMECE2011-61614.
3. Wornyoh, E. Y. A., Schuessler, L. D., Patel, D. K., and Francis, A. B., 2011, "Improving Planetary Gear System Thermal Compliance through in Situ Cooling," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61209.
4. Wornyoh, E. Y. A., Reeves, C. J., and Doede, M. M., 2011, "Characterizing the Tribological Performance of Powder-Lubricated Rolling Element Bearings," Proceedings of the ASME/ IJTC, Paper No.  IJTC2011-61204.
5. Wornyoh, E. Y. A., Patel, D. K., Schuessler, L. D., Francis, A. B., and Garnett, C. S., 2011, "Improving Rolling Element Bearing Thermal Compliance through in Situ Cooling," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61210.
6. Wornyoh, E. Y. A., Menezes, P. L., and Lovell, M. R., 2011, "The Tribological Perofrmance of Green Shea Butter," Proceedings of the ASME/IJTC Paper No. IJTC2011-61211.
7. Wornyoh, E. Y. A., and Gilaki, M., 2011, "A Review of Friction-Induced Thermomechanical Instability," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61206.
8.   Wornyoh, E. Y. A., Chen, J., Reeves, C. J., Francis, A. B., Doede, M. M., and Mao, S., 2011, "On the Superlubricity of Graphene Oxide Coatings," Proceedings of the ASME/ IJTC, Paper No. IJTC2011-61207, Los Angeles, CA.
9. Menezes, P. L., Wornyoh, E. Y. A., and Lovell, M. R., 2011, "On the Size Effect of Boron Nitride Particles on Tribological Perofrmance," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61212.
10. Wornyoh, E. Y. A., Patel, D. K., Schuessler, L. D., Francis, A. B., and Garnett, C. S.,2011, "Improving Rolling Element Bearing Thermal Compliance through in Situ Cooling," Proc. STLE/ASME International Joint Tribology Conference, Paper No.  IJTC2011-61210.
11. Michael Nosonovsky, Vahid Hejazi, Emmanuel Wornyoh, Pradeep K. Rohatgi, and Aniedi E. Nyong, 2011, “Sustainable Lotus-Effect Metal Matrix Composites and Influence on the Contact Angle,” Proc. STLE/ASME International Joint Tribology Conference, Paper No.  IJTC2011-61230.
12. Wornyoh, E. Y. A., Higgs III, C. F., and Pudjoprawoto, R., "On the Influence of Friction on Velocity at a Powder-Lubricated Slider-Disk Interface: Experimentation," Proc. STLE/ASME 2010 International Joint Tribology Conference, IJTC2010, October 17, 2010 - October 20, 2010, American Society of Mechanical Engineers, pp. 449-451.
13. E.Y.A. Wornyoh, P.S. Dougherty, and C.F. Higgs, III, 2009, “A Study of Green (Environmentally-Benign) Transfer Films through the Tribo-comminution of Powder Pellets: Experimentation and Modeling,” Proceedings of AIChE Annual General Meeting, Nashville, TN.
14. Higgs III, C. F., and Wornyoh, E. Y. A., 2008, "An in Situ Mechanism for Self-Replenishing Powder Transfer Films: Experiments and Modeling," Wear, 264(1-2), pp. 131-138.
15. Wornyoh, E., and Higgs, C.F., III., 2008, “Evaluating the Mode of In Situ Powder Film Transfer on a Tribosurface: Modeling and Experiments,” STLE Annual General Meeting, Cleveland, OH.
16. Wornyoh, E. Y. A., Jasti, V. K., and Higgs III, C. F., 2007, "A Review of Dry Particulate Lubrication: Powder and Granular Materials," Journal of Tribology, 129(2), pp. 438-449.
17. Wornyoh, E. Y. A., and Higgs III, C. F., "An Asperity-Based Fractional Coverage Model for Solid Lubricant Film Transfer on a 3D Surface," Proc. 2007 ASME/STLE International Joint Tribology Conference, IJTC 2007, October 22, 2007 - October 24, 2007, American Society of Mechanical Engineers, pp. 937-938.
18. Wornyoh, E. Y. A., and Higgs III, C. F., "Self-Replenishing, Self-Repairing Solid Lubrication: Modelling and Experimentation," Proc. 2005 World Tribology Congress III, September 12, 2005 - September 16, 2005, American Society of Mechanical Engineers, pp. 409-410.