MEMS Seminar: A Systems Approach to Management of Transient Thermal Systems for Mobile Electrification
Wednesday, February 20, 2019
12:00 pm - 1:00 pm
Fitzpatrick Center Schiciano Auditorium Side A, room 1464
Dr. Andrew Alleyne | University of Illinois
Modern electrified mobility demands increased levels of electrical power, thereby putting mounting strains on the concomitant thermal management. These trends can be seen across a variety of mobility modalities. This talk will present results on the management of thermal loads from a systems perspective with a focus on complex systems having multiple interconnected subsystems; these subsystems include thermal sources, sinks, transport, heat exchange interfaces, and storage elements. The overall systems also include the interaction with the electrical components providing the source of the thermal loads.
First, we introduce a graph-based framework that is useful for understanding the complex interconnections within these systems. Subsequently, we will present numerical design optimization approaches that exploit the mathematical formulation resulting from the graphs to select vehicle topology as well as component sizing while considering both static design and dynamic control. This optimization approach includes the co-design of the electrical and thermal, or electro-thermal, systems rather than the more typical sequential design of electrical systems dictating thermal requirements. Thirdly, a control approach for the complex electro-thermal class of systems using a hierarchical approach will be presented. The hierarchical framework allows for the simultaneous management of both the electrical and thermal power. The presentation will include design examples from the automotive and aerospace domains.
Andrew Alleyne received his B.S.E. from Princeton and his M.S./Ph.D. degrees, respectively, from UC Berkeley. He joined the University of Illinois, Urbana-Champaign in 1994 where he currently holds the Ralph and Catherine Fisher Professorship and is the Director for the NSF Engineering Research Center on Power Optimization for Electro-Thermal Systems (POETS). His research focuses on the modeling, simulation and control of nonlinear mechanical systems with a current focus on transient thermal system. He developed a commercial simulation tool, ThermosysTM, for simulation of refrigeration systems and worked with the Air Force Research Laboratory to develop the Aircraft Transient Thermal Modeling and Optimization toolbox.
His academic record includes supervision of over 80 M.S. and Ph.D. students and over 400 conference and journal publications. He has been a Distinguished Lecturer of the Institute for Electronic and Electrical Engineers (IEEE) and a National Research Council (NRC) Associate. He was a Fulbright Fellow to the Netherlands and has held visiting Professorships at TU Delft, University of Colorado, ETH Zurich, and Johannes Kepler University. He is a Fellow of IEEE and ASME and currently serves on the Scientific Advisory Board for the U.S. Air Force and the National Academies Board On Army Research and Development.
Lunch will be served at 11:30 am.
Hosted by Dr. Leila Bridgeman.