Numerical study of thermal enhancement in micro channel heat sink with secondary flow

Author(s):  
Navin Raja Kuppusamy ◽  
R. Saidur ◽  
N.N.N. Ghazali ◽  
H.A. Mohammed
Author(s):  
Chun K. Kwok ◽  
Matthew M. Asada ◽  
Jonathan R. Mita ◽  
Weilin Qu

This paper presents an experimental study of single-phase heat transfer characteristics of binary methanol-water mixtures in a micro-channel heat sink containing an array of 22 microchannels with 240μm × 630μm cross-section. Pure water, pure methanol, and five methanol-water mixtures with methanol molar fraction of 16%, 36%, 50%, 63% and 82% were tested. Key parametric trends were identified and discussed. The experimental study was complemented by a three-dimensional numerical simulation. Numerical predictions and experimental data are in good agreement with a mean absolute error (MAE) of 0.87%.


Author(s):  
M. L.-J. Levac ◽  
H. M. Soliman ◽  
S. J. Ormiston

Micro-channel heat sinks are currently at the forefront of cooling technologies for computer chips where the input heat flux is projected to exceed 100 W/cm2 [1, 2]. The quest for better heat-sink designs has produced different ideas, one of which is the idea of using multi-layered micro-channel heat sinks [3, 4]. The objectives of the present investigation were to conduct a detailed numerical study of the hydrodynamic and thermal behavior of a two-layered micro-channel heat sink and to compare the performance of the two-layered heat sink with that of a single-layered sink under laminar flow conditions.


2021 ◽  
pp. 547-551
Author(s):  
Abhishek Basak ◽  
Kailash Roy ◽  
Anirban Bose ◽  
Avisek Tunga

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