SCHOOL OF MECHANICAL ENGINEERING SEMINAR

                                                 Monday. June 6, 2022 at 14:00   

Prof. Yun Wang

 Mechanical and Aerospace Engineering, University of California, Irvine, CA, 92697-3975

Polymer electrolyte membrane fuel cell and hydrogen station networks for automobiles

Renewable Energy Resources Laboratory, Mechanical and Aerospace Engineering, UC Irvine, CA, USA, yunw@uci.edu

Polymer electrolyte membrane (PEM) fuel cells are electrochemical devices that directly convert the chemical energy stored in fuel into electrical energy. Automobiles are a primary application of polymer electrolyte membrane (PEM) fuel cells, which operate under low temperature and high efficiency, to reduce fossil fuel consumption and CO₂ emissions. Using hydrogen fuel, PEM fuel cells can reach a practical efficiency as high as 65% with water as the only byproduct. Toyota and Hyundai introduced FCEVs (the Mirai and NEXO, respectively) to consumers in recent years with a driving range between 312 and 402 miles and cold-start capacity from -30 °C. As of now, over 10,000 FCEVs have been sold or leased in the U.S. An extensive hydrogen station network is required for the successful deployment of FCEVs.  In this talk, I will present the status of PEM fuel cell and hydrogen station network development. Some fundamental, design and material aspects critical to automobile application will be discussed in detail, including cold start, physical model, and machine learning for optimization.

Bio：Yun Wang received his B.S. and M.S. degrees in Mechanics and Engineering Science from Peking University in 1998 and 2001, respectively. He went to the Pennsylvania State University where he earned his Ph.D degree in Mechanical Engineering in 2006. Dr. Wang has published over 80 journal articles on PEM fuel cell, Li-air battery, and other energy systems. He has received a number of awards, including the prestigious President's Award and Outstanding Educator Award from Orange County Engineering Council and the 2011-2012 Applied Energy Certificate of Excellence: Most Downloaded Authors. Several of his seminal works are highly cited in major energy/power journals. Dr. Wang served as Track chair/co-chair, session chair/co-chair, conference chair and committee member for many international conferences on power and energy. Dr. Wang served as the ABET coordinator for mechanical engineering (ME) at UCI in 2013-2020 and has been the ME undergrad advisor since 2012. Dr. Wang received 2018 Reviewer of The Year from the Journal of Electrochemical Energy Conversion and Storage. Dr. Wang is currently Professor at the UC Irvine and RSC and ASME fellow. He serves as faculty director for the school’s international programs.

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