报告题目：A Lattice Porous Medium as an Innovative Thermal Solution for Compact Operations in an Automotive Climate Control System
报告人： Dr. Tongbeum Kim ( State Key Laboratory of Mechanics and Control of Mechanical Structures & MIIT Key Laboratory of Multifunctional Lightweight Materials and Structures, Nanjing University of Aeronautics and Astronautics (NUAA), PR China)
To provide a comfort driving environment regardless of weather conditions, a few thermal management systems have been designed not only for a car but also for a driver. For this purpose, louvered fin-and-tube cores have been the most popular choice for enhancing the heat transfer performance of automotive climate control systems (ACCS) because of their moderate heat transfer capacity with least pressure drop compared to other core elements. However, their performance in such systems is debilitated if compact operations are required. In this presentation, how such compact operations can lead to an unexpected performance degradation and how such a problem can be relieved by an innovative approach, introducing a “lattice porous medium” which induces three-dimensional momentum/thermal dispersion within the core under compact operations will be discussed from its inception to development. It will be shown that the new solution thermally outperforms the conventional core by up to 35% within the ACCS’s typical operational range.
Dr. Tongbeum Kim has been a Professor in the College of Aerospace Engineering at NUAA since 2019. Prior to which, he was a Chair Professor of Thermofluids Sciences in the School of Mechanical and Aerospace Engineering, University of the Witwatersrand, South Africa and a Professor in the School of Aerospace, Xi’an Jiaotong University, China. He completed an M.Sc. on Aerodynamics at the Georgia Institute of Technology, USA and a Ph.D. on Aerothermal Engineering at the University of Cambridge, UK. Dr. Kim’s research focuses on the growing concerns over sustainability, primarily through the thermal management of energy systems, including the development of new gas turbine blade cooling schemes, electronics cooling systems, thermal compact designs of two-phase heat transfer systems, and solar thermal harvesting systems. Dr. Kim received the HTFS Best Paper Award from UK National Heat Transfer Conference (09/2003) and was recognized as the Outstanding Reviewer from the ASME Journal of Heat Transfer (11/2012).