FLUID FLOW AND HEAT TRANSFER OF LIQUID SODIUM IN SMALL-SCALE HEAT SINKS WITH DIFFERENT GEOMETRIES Conference Paper uri icon

abstract

  • Abstract 3-D numerical simulations are performed to investigate liquid sodium (Na) flow and the heat transfer within miniature heat sinks with different geometries and hydraulic diameters of less than 5 mm. Two different straight small-scale heat sinks with rectangular and triangular cross-sections are studied in the laminar flow with the Reynolds number up to 1900. The local and average Nusselt numbers are obtained and compared against eachother. At the same surface area to volume ratio, rectangular minichannel heat sink leads to almost 280% higher convective heat transfer rate in comparison with triangular heat sink. It is observed that the difference between thermal efficiencies of rectangular and triangular minichannel heat sinks was independent of flow Reynolds number.

name of conference

  • Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow

published proceedings

  • PROCEEDINGS OF ASME 2021 FLUIDS ENGINEERING DIVISION SUMMER MEETING (FEDSM2021), VOL 3

author list (cited authors)

  • Pourghasemi, M., & Fathi, N.

citation count

  • 0

complete list of authors

  • Pourghasemi, Mahyar||Fathi, Nima

publication date

  • August 2021