Effect of Serpentine Grooves on Heat Transfer Characteristics of Microchannel Heat Sink with Different Nanofluids

2015 ◽  
Vol 46 (3) ◽  
pp. 201-217 ◽  
Author(s):  
A. Sivakumar ◽  
N. Alagumurthi ◽  
T. Senthilvelan
Keyword(s):  
Heat Transfer ◽  
Heat Sink ◽  
Microchannel Heat Sink ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics

Forced Convection in a Microchannel Heat Sink Using Carbon Nanotubes for Heat Transfer Enhancement

2004 ◽  
Author(s):  
Blake E. Jakaboski ◽  
Yogendra Joshi ◽  
Michael Rightley
Keyword(s):  
Heat Transfer ◽  
Carbon Nanotubes ◽  
Cross Section ◽  
Heat Sink ◽  
Infrared Camera ◽  
Open Loop ◽  
Microchannel Heat Sink ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Multi Walled Carbon Nanotubes

A new type of microchannel heat sink has been developed and evaluated in this study. The device consists of silicon microchannels on whose bottom surfaces multi-walled carbon nanotubes are grown. The objective of the study is to investigate the effect of carbon nanotubes on the heat transfer characteristics. The heat sink size is 15 mm × 15 mm × 0.675 mm. It contains two microchannel designs. One consists of eight channels of cross section 682 μm × 50 μm; the other has six channels of cross section 942 μm × 50 μm. The heat sink is incorporated in an open loop flow facility, with water as the coolant. Six different configurations are compared. Two have no nanotubes, two have closely spaced nanotube, while the last two designs have widely spaced nanotubes. The tests utilize an infrared camera as well as thermocouples placed in the flow for characterization. The heat transfer characteristics are compared for the different cases.

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