[Keynote speech]Computational Analysis of Phase Change based Heat Sink coupled with Heat Pipe as Thermal Conductivity Enhancer

Computational Analysis of Phase Change based Heat Sink coupled with Heat Pipe as Thermal Conductivity Enhancer
ID：175 View Protection：ATTENDEE Updated Time：2025-10-03 20:42:18 Hits：88 Keynote speech

Start Time：2025-10-12 08:00 （Asia/Shanghai）

Duration：30min

Session：[S3] Computational heat transfer and fluid dynamics » [S5] Session 5: Heat exchangers

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Abstract
Comprehensive numerical analysis is reported for phase change material (PCM) based heat sink coupled with a model heat pipe as thermal conductivity enhancer (TCE). The heat pipe is modeled considering a fixed liquid–vapor interface and solving the Navier–Stokes equations in domain-specific formulations applied to the solid wall, the porous wick, and the vapor core. The porous wick is modelled using the extended Darcy–Brinkman–Forchheimer formulation, accounting for both viscous and inertial effects in the saturated porous structure. The estimated effective thermal conductivity of the heat pipe is used when coupled with the phase change based heat sink where the phase change process of PCM is modeled using an enthalpy–porosity approach. An in-house test facility is developed for validating the numerical results. The results demonstrate that the PCM-embedded heatsink coupled with a heat pipe (as TCE) maintains the base temperature below the set point for an extended period. Additionally, with the coupled heat pipe configuration full utilization of the PCMs latent heat storage capacity is ensured which in turn promotes the charging cycle. For applicability to real life electronic devices, the simulation results are analyzed in terms of non-dimensional numbers including Fourier number, and modified Nusselt number.
Keywords
Speaker
Jyotirmay Banerjee
Professor Sardar Vallabhbhai National Institute of Technology (SVNIT), India

Professor Jyotirmay Banerjee obtained his Doctorate of Philosophy (PhD) from Indian Institute of Technology, Kanpur in India. He has more than 28 years of teaching and research experience. His research interests include Computational Fluid Dynamics, Multiphase Flow and Heat Transfer and Phase Change Applications. He has more than 100 peer reviewed journal papers, 4 books and 23 book chapters to his credit. He is presently an Associate Editor of SÃDHANÃ published by the Indian Academy of Science. He has completed several research projects funded by Science and Engineering Research Board (SERB), Board of Research Nuclear Studies (BRNS), Aeronautical Research and Development Board (ARDB) and Consultancy Assisted Research Services (CARS) sanctioned by Defence Research and Development Organization (DRDO) of India. He has rendered major consultancy services to industries including Tehri Hydro Development Corporation (THDC) Limited, Uttaranchal Jal Vidyut Nigam Limited (UJVNL) and Koteshwar Hydroelectric Project. Earlier he has served as Dean of Academics and Head of Department of Mechanical Engineering at SVNIT Surat. As a Professor In-charge, Research Park and Director of Association for Harnessing Innovation and Entrepreneurship (ASHINE), a not-for-profit company, he was instrumental in promoting entrepreneurial activities at SVNIT Surat.

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