EXPERIMENTAL ANALYSIS OF UN-UNIFORM FIN WIDTH HEAT SINKS WITH BASE PLATE

The thermal performances of the heat sink with un-uniform fin width designs with base
plates and carbon nano tube coating were investigated experimentally and numerically. Realistic,
manufacturable geometries are considered for minimizing thermal resistance at low velocity. The
parameters include the Reynolds number (Re = 5000 - 25000), five fin width design (Type - a to
Type - e), three base plates (copper, ccc and copper-diamond composite) and carbon nano tube
coating. In this study, the effects of base plates and nano coating on thermal performance of heat
sinks with un-uniform fin width are experimentally studied. Experimental results show that among
the many design parameters such as base plates and nano coating, composite base plate has a more
significant influence on the thermal performance of heat sinks. It is also found that there is
potential for optimizing the un-uniform fin width heat sinks with base plates and nano coating.