@Article{RiehlSant:2012:WaNaAp,
author = "Riehl, R{\'o}ger Ribeiro and Santos, Nadjara dos",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Water-copper nanofluid application in an open loop pulsating heat
pipe",
journal = "Applied Thermal Engineering",
year = "2012",
volume = "42",
pages = "6--10",
month = "Set.",
keywords = "pulsating heat pipe, heat transfer, nanofluid, nanoparticles.",
abstract = "Several investigations have pointed the operational behavior of
passive thermal control devices such as loop heat pipes (LHPs) and
pulsating heat pipes (PHPs) in the past, which have cleared many
points related to their design. However, an interesting aspect
related to passive thermal control devices that operate by means
of capillary forces to pump the working fluid have gained
attention during the last years, is in regard to the use of
nanofluids on such devices. Nanofluids are known as regular fluids
with addition of solid nanoparticles with sizes (diameter) below
40 nm, which are used to enhance the working fluid's thermal
performance by enhancing its thermal conductivity. Previous works
have demonstrated that the liquid's thermal conductivity can be
enhanced by 20% if nanoparticles are added on a concentration of
5% by mass. PHPs operate by the dynamics of slug/plug formation,
removing heat from a high temperature source and dissipating in a
low temperature sink, and are highly influenced by the bubble
critical diameter related to a specific working fluid. Thus, an
experimental open loop PHP (OLPHP) was tested with water-copper
nanofluid, with an addition of 5% by mass of copper nanoparticles.
Improvements on the overall device's operation have been observed
when using the nanofluid with lower temperatures, as well as a
direct influence on the thermal conductances throughout the PHP. ©
2011 Elsevier Ltd. All rights reserved.",
doi = "10.1016/j.applthermaleng.2011.01.017",
url = "http://dx.doi.org/10.1016/j.applthermaleng.2011.01.017",
issn = "1359-4311",
label = "lattes: 3396317350075844 1 RiehlSant:2012:WaNaAp",
language = "en",
targetfile = "Riehl\&Santos_2012.pdf",
urlaccessdate = "26 abr. 2024"
}