Heat transfer characterization of 3D printable architected heat sinks

Mohamed I. Hassan Ali, Oraib Al-Ketan, Alya Alhammadi, Mohamad Khalil, Kamran Khan, Rashid K. Abu Al-Rub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The current developments in additive manufacturing (3D printing) overcome the limitations of traditional fabrication techniques such as milling, drilling and casting and allow to fabricate geometrically-complex heat sinks for which the topological features are capitalized upon to enhance the thermal performance. In this work, we propose new and novel 3D printable architected heat sinks with geometrically complex structures based on triply periodic minimal surfaces (TPMS). Their printability with laser-based metal additive manufacturing is assessed using electron microscopy techniques. Moreover, Computational fluid dynamics (CFD) modeling is used to assess the effect of geometry on the performance of the proposed TPMS-based heat sinks in active cooling using forced convection heat transfer environment. The convection heat transfer coefficient, surface temperature, pressure drop are predicted using CFD method. The results showed that the heat transfer performance does not depend on the architects porosity alone, but also depends on the heat sink solid-networks structure.

Original languageEnglish (US)
Title of host publicationHeat Transfer and Thermal Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791859452
DOIs
StatePublished - Jan 1 2019
EventASME 2019 International Mechanical Engineering Congress and Exposition, IMECE 2019 - Salt Lake City, United States
Duration: Nov 11 2019Nov 14 2019

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume8

Conference

ConferenceASME 2019 International Mechanical Engineering Congress and Exposition, IMECE 2019
CountryUnited States
CitySalt Lake City
Period11/11/1911/14/19

Keywords

  • Architected heat sink
  • Forced convection, 3D printing heat transfer
  • Heat transfer CFD
  • Porous heat sink

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Hassan Ali, M. I., Al-Ketan, O., Alhammadi, A., Khalil, M., Khan, K., & Abu Al-Rub, R. K. (2019). Heat transfer characterization of 3D printable architected heat sinks. In Heat Transfer and Thermal Engineering (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 8). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2019-11523