Entrance and Exit Effects on Thermohydraulic Performance of a Microchannel Heat Sink
Sehgal S. Satbir1, Krishnan Murugesan2 and S. K. Mohapatra3
1Continental Institute of Engineering & Technology, Punjab, India.
satbirsehgal@gmail.com
2Indian Institute of Technology, Roorkee, India.
krimufme@iitr.ernet.in
3Thapar University Patiala, Punjab, India.
hmed@tiet.ac.in
ABSTRACT
The present paper reports on an experimental study that was conducted to explore the effect of entrance & exit regions of the liquid flow within a copper micro-channel heat sink (MCHS). The given test piece contained an array of microchannels in parallel having individual width of 330µm and channel depth of 2.5mm. A comparison on thermohydraulic performance of a MCHS for different flow directions to inlet and outlet plenums was made. The experiments were conducted with deionised water with the Reynolds number ranging from approximately 224 to 1121. The experimental uncertainties have been carefully evaluated in selecting the instruments used in the experimental facility.
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