![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
The present research conducts an experimental study on the thermal performance of the finned metal foam (FMF) heat sinks with phase change material. The dynamic temperature response of an FMF heat sink is analyzed and compared with the corresponding finned heat sink. The effects of porosity and pore density on the thermal performance of FMF heat sinks are analyzed. Furthermore, the enhancement ratio and heat exchange capability are evaluated for the optimization of FMF heat sinks. The results indicate that the thermal conduction enhancement caused by the addition of metal foam exceeds the heat transfer loss arising from the suppression of natural convection. A decrease in porosity leads to an increase in heat exchange capability and contributes to a higher enhancement ratio. Considering the tradeoff between the low operating temperature and longer duration of reliability, the porosity of 0.9 is the best choice for FMF heat sinks. Though the porosity is identical, the thermal performance of an FMF heat sink is better with the increase of pore density. Considering the maximum energy charging capacities are identical, the FMF heat sink with larger pore density is recommended for practical engineering applications.
Additional information
Funding
Notes on contributors
Yongping Huang
Yongping Huang is a PhD candidate in the School of Energy and Environment at Southeast University, Nanjing, China. He obtained his ME in Power Engineering and Engineering Thermal Physics from Southeast University, Nanjing, China, in 2016. His research interests include heat and mass transfer in porous media and latent heat thermal energy storage.
Qing Sun
Qing Sun is a ME candidate in the School of Hydraulic at Yangzhou University, Yangzhou, China. Her research interests include thermal management of electronic equipment and phase change material-based heat sinks.
Feng Yao
Feng Yao is a lecturer in the School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China. He received his PhD in Power Engineering and Engineering Thermal Physics in 2016 from Southeast University, Nanjing, China. He is currently working on the heat and mass transfer in heat pipes.
Chengbin Zhang
Chengbin Zhang is an associate professor in the School of Energy and Environment at Southeast University, Nanjing, China. He received his PhD in Power Engineering and Engineering Thermal Physics in 2013 from Southeast University, Nanjing, China. He received the first class Natural Science Award of Ministry of Education (third prize winner), and he was also elected in “six talent peaks” project of Jiangsu Province and “Zhishan Young Scholar” Program of Southeast University. His research is in the area of micro-scale heat and mass transfer, high-performance heat pipes, and solid-liquid/gas-liquid phase change heat transfer.