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Mater Sci Nanotechnol 2017 | Volume 1 Issue 2
allied
academies
Nanomaterials and Nanochemistry
November 29-30, 2017 | Atlanta, USA
International Conference on
I
nnovative strategies for high heat flux dissipation are strongly
needed to overcome the intrinsic limitations of the traditional
cooling schemes. Passive cooling represents an interesting way
to dissipate the heat rejected by electronic devices and when
it is associated to a phase change, it can be very effective. The
most common phase change process used in the electronics
cooling is the liquid–vapor one (i.e. boiling), since it can be
found in the heat pipes and vapor chambers largely used to cool
electronics devices. On the other hand, the solid-liquid phase
change process (as in the case of a phase changematerial, PCM)
is another interesting possibility to reject even high heat loads,
especially when they are intermittent as in the case of most
electronics cooling. In the last decades, nanotechnologies have
been demonstrated to open new interesting opportunities for
the two-phase heat transfer enhancement on both liquid-vapor
and solid-liquid processes. In particular, the use of nanoparticles
to improve the heat transfer properties of fluids has been
largely studied and implemented since the concept of nanofluid
was firstly advanced by S Choi in 1995. Despite of the large
research efforts on nanofluids, the results are still contradicting,
especially in two-phase heat transfer, where the nanoparticles-
fluid interaction is added to the already very complex phase
change phenomenon. This lecture covers the most advanced
research activities carried out the Nano Heat Transfer Lab (NHT-
Lab) of the University of Padova; in particular, the results on
surface functionalization via nanoparticles deposition during
nanofluid boiling and the development of nano-PCMby seeding
different carbon black and allumina nanoparticles in common
paraffin waxes are presented and critically discussed to explore
the possible use of these enabling technologies for the next
generation of cooling strategies.
Speaker Biography
Simone Mancin is an Associate Professor at the Dept. of Management and Engineering
of the University of Padova, where he teaches three courses: Applied Physics, Thermo-
Fluid-dynamics, and Thermal Management of Electronics Devices. He set up an
independent laboratory on Nano Heat Transfer (NHT-lab) where he has focused his
research activities on Nanotechnologies applied to advanced single and two-phase
heat transfer. In particular, his current research projects involve the use of nanoparticles
to improve the heat transfer performance of phase change materials for enhanced
thermal energy storage and to obtain specific surface functionalization via nanofluid
pool boiling. Moreover, other research projects regard the experimental and numerical
analyses of single and two-phase (both condensation and evaporation) heat transfer
inside microgeometries and nanostructured materials aiming at developing innovative
solutions for smart, efficient, and compact heat exchangers for refrigeration and air
conditioning, and electronics cooling applications. He is author and co-author of more
than 80 scientific papers published in several peer-review international journals and
in proceeding of national and international congresses; he acts as reviewer of several
scientific international journals. He is member of IIR B1 scientific commission and
fellow of ASME.
e:
simone.mancin@unipd.itSimone Mancin
University of Padova, Italy
Nanoparticles for advanced two-phase heat transfer solutions