Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Heat Transfer Optimization for Straight and Helical Double Layer Micro-Channel Heat Sink

Authors
Ayat Shafiei dizaji
Sohrab Zaboli
Habib Aminfar
Mechanical Engineering Department, Tabriz University, Tabriz, Iran
Abstract
The optimization is done by changing geometric and hydrodynamic parameters of the micro-channel flow. The governing equations are solved numerically by finite volume method. Results show that the number of channels, the width of the ribs and the coolant velocity in bottom channel will have considerable impact on cooling performance of the straight micro-channel. Also, since spiral geometry has not been studied in the literature until now, the spiral geometry in the micro-channel cooling performance has also been studied in this study. In this case, the results also show that the lower the curvature radius, the cooling will improve.
The optimization is done by changing geometric and hydrodynamic parameters of the micro-channel flow. The governing equations are solved numerically by finite volume method. Results show that the number of channels, the width of the ribs and the coolant velocity in bottom channel will have considerable impact on cooling performance of the straight micro-channel. Also, since spiral geometry has not been studied in the literature until now, the spiral geometry in the micro-channel cooling performance has also been studied in this study. In this case, the results also show that the lower the curvature radius, the cooling will improve.
Keywords
Keywords Optimization
Double layer micro-channel
Cooling
Heat transfer
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Iranian Journal of Mechanical Engineering Transactions of ISME
Volume 21, Issue 2 - Serial Number 55
Fluid Mechanics and Heat Transfer
Spring 2019
Pages 6-28

  • Receive Date 15 May 2018
  • Revise Date 08 November 2018
  • Accept Date 20 October 2019