Hams Hefny is a mechanical engineer specializing in thermal management for electric vehicles. She recently completed her M.Sc. in mechanical engineering at McMaster University, where she conducted advanced research under Dr. Ali Emadi at the McMaster Automotive Resource Centre (MARC). Her work focused on developing advanced thermal management strategies for electric machines. This contributed to industry collaborations with Stellantis and other industry partners. Hams’s expertise includes air- and liquid-cooled systems, electromagnetic modelling, and computational fluid dynamics (CFD). She aims to develop intelligent, cost-effective thermal solutions that improve the performance and reliability of next-generation electric vehicles—helping drive the global shift toward sustainable transportation.
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From an early age, Hams Hefny was fascinated by cars and motivated to build a more sustainable future. Her curiosity about how things work—and how they can work better—naturally led her to engineering. She discovered that through design and analysis, she could solve real-world challenges and create lasting environmental impact.
Hams envisions a future where electrified transportation is both high-performing and sustainable. She aims to develop scalable, cost-effective cooling solutions for electric motors, batteries, and power electronics. She believes that intelligent thermal management systems are key to advancing the next generation of electric vehicles.
As a thermal design and research engineer, Hams specializes in air- and liquid-cooled systems, electromagnetic modeling, and computational fluid dynamics (CFD). At McMaster University, she completed her M.Sc. in mechanical engineering under Dr. Ali Emadi, conducting research at the McMaster Automotive Resource Centre (MARC). Her projects with Stellantis focused on multiphase cooling and thermal optimization for electric machines.
Hams also served as a teaching and research assistant, mentoring undergraduate students in thermodynamics, heat transfer, and fluid mechanics. She is passionate about bridging theoretical knowledge with practical engineering applications, helping students connect classroom concepts to real-world systems.
Her technical expertise includes the development of lumped parameter thermal network (LPTN) models and the optimization of water- and oil-cooled permanent magnet synchronous machines (PMSMs) through advanced CFD simulation. She has also designed and analyzed thermal systems for EV battery packs, working with the U.S. Department of Energy and Argonne National Laboratory to improve thermal and hydraulic performance.
In power electronics, Hams has engineered heat sinks, cold plates, and heat pipes for improved thermal control. She also uses Python scripting in PyMotorCAD to automate modeling workflows—enhancing both accuracy and efficiency in simulation and design.
Hams continues to focus on innovations that make electrified transportation cleaner, safer, and more efficient, uniting her passion for sustainability with her technical expertise.
