Slide 1.pngSlide 2.pngSlide 3.pngSlide 4.pngSlide 5.pngSlide 6.png

Pr. Yunhua Gan

School of Electric Power, South China University of Technology, China


Talk Title
A thermal equivalent circuit model to predict the thermal behavior of a cylindrical battery pack

Talk Abstract

With the development of new energy electric vehicles, the rechargeable battery, especially the lithium-ion battery, has been the most popular choice for these electric vehicles. However, a large amount of heat generated within the battery leads to a significant increase of battery temperature, imposing a significant challenge to the performance and lifespan of the whole battery pack. Thus, the temperature monitoring and prediction of a battery pack under different working conditions is one of the premise tasks for efficient thermal management. In the present study, a thermal management system based on heat pipes is proposed for a cylindrical battery pack. And a thermal equivalent circuit model is developed to describe the thermal behavior of the battery pack. The present model is experimentally validated and compared with the computational fluid dynamics model. The transient analysis under different discharge rates is conducted. The effects of coolant flow rate and battery quantity on the battery cooling performance are investigated by using the present model. Results show that the temperature prediction based on the present model is in a good agreement with experimental results and the prediction of computational fluid dynamics model. The computational time of the present model is 99.61% lower than that of the computational fluid dynamics model. The present model is able to achieve the instant temperature monitoring of battery pack. And it shows advantage in accurate and fast prediction of battery temperature.

Short Biography

Prof./Dr. Yunhua Gan is Chair in Mircro Heat Transfer and Combustion Lab at Department of Power Engineering, School of Electric Power, South China University of Technology (SCUT). He received Bachelor degree in Thermal Power Engineering in July 2000 and Master degree in Thermophysical Engineering in March 2003 at Northeast Electric Power University (NEEPU); and PhD degree in Thermophysical Engineering in March 2006 at University of Science and Technology of China (USTC). He joined SCUT since 2006 (as Lecturer in 2006, then was promoted to Associate Professor in 2009, and to Full Professor in 2015). He was an academic visitor at Prof. Yuying Yan’s Lab in University of Nottingham during Apr.2013 to Apr. 2014. Prof. Gan carries out researches of microchannel heat transfer, battery thermal management system and mciro-scale combustion. His research has been supported by the National Natural Science Foundation of China (NSFC) , the Project of the Guangzhou Science and Technology Plan and the Project of Pearl River Science and Technology New Star in Guangzhou. Prof. Gan has supervised 2 PhD student and 14 Master students and authored/co-authored more than 100 refereed journal papers and 15 patents. Some co-authors of his papers are from Princeton University, University of Nottingham, Lancaster University, Queen Mary Unviersity of London, and the Unviersity of Sheffield. He received the first prize of the Ministry of Education (2013) and the third prize of Guangdong Province (2006).

Talk Keywords
Cylindrical battery pack; Heat pipe; Thermal equivalent circuit model; Transient analysis; Thermal performance.
Target Audience
Stuents, academica, industry, government, NGOs
Speaker-intro video

The International Conference on Innovative Applied Energy (IAPE’18)