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Can segmented flow enhance heat transfer in microchannel heat sinks? Amy Rachel Betz *, Daniel Attinger
 

Summary: Can segmented flow enhance heat transfer in microchannel heat sinks?
Amy Rachel Betz *, Daniel Attinger
Laboratory for Microscale Transport Phenomena, Department of Mechanical Engineering, Columbia University, New York, NY 10027, USA
a r t i c l e i n f o
Article history:
Received in revised form 4 March 2010
Available online 12 May 2010
Keywords:
Segmented flow
Microfluidics
Multiphase flow
Heat transfer
Heat sink
Electronic cooling
a b s t r a c t
Liquid cooling is an efficient way to remove heat fluxes with magnitudes up to 10,000 W/cm2
. One lim-
itation of current single-phase microchannel heat sinks is the relatively low Nusselt number, due to lam-
inar flow. In this work, we experimentally investigate how to enhance the Nusselt number with the
introduction of segmented flow. The segmented flow pattern was created by the periodic injection of

  

Source: Attinger, Daniel - Department of Mechanical Engineering, Columbia University

 

Collections: Engineering