Buscar
Mostrando ítems 1-10 de 268
Thermal efficiency of open-cell metal foams: Impact of foam thickness by comparing correlations and numerical modeling
(2022-05-05)
Engineered surfaces are increasingly used to cool electronic devices with dielectric fluids in two-phase change. A common type of such surfaces is the open-cell metal foam. In this work, our goal was two-fold, to assess ...
A new pool boiling heat transfer correlation for wetting dielectric fluids on metal foams
(Elsevier, 2021-02-19)
Porous structures, as metal foams, can enhance the heat transfer performance. For a safe industrial application, a predictive model for both heat transfer coefficient and maximum heat flux is required. But, there is no ...
Pool boiling heat transfer of HFE-7100 on metal foams
(Elsevier, 2019-12-26)
The search for new techniques to increase boiling heat transfer has been driven by more efficient and compact heat exchangers, especially in microelectronics and equipment with high thermal loads. Two-phase cooling systems ...
The Laser ablation of a metal foam: The role of electron-phonon coupling and electronic heat diffusivity
(American Institute of Physics, 2018-01)
The incidence of energetic laser pulses on a metal foam may lead to foam ablation. The processes occurring in the foam may differ strongly from those in a bulk metal: The absorption of laser light, energy transfer to the ...
Glass foam of macroporosity using glass waste and sodium hydroxide as the foaming agent
(2013-04-01)
Glass foams using float glass waste and sodium hydroxide were produced. The influence of the sodium hydroxide amount in the foam formulation was studied. Titanium dioxide was used as a strengthening agent. The variations ...
Glass foam of macroporosity using glass waste and sodium hydroxide as the foaming agent
(2013-04-01)
Glass foams using float glass waste and sodium hydroxide were produced. The influence of the sodium hydroxide amount in the foam formulation was studied. Titanium dioxide was used as a strengthening agent. The variations ...
Ultra lightweight Mg foam from recycled shavingsEspuma ultraliviana de Mg a partir de viruta reciclada
(Universidade Federal do Rio de Janeiro, 2018-06)
Hundreds of people worldwide die or are severely maimed in collisions during traffic accidents, due to the energy transmitted to the passengers on impact. A dissipation of said energy is necessary to minimize it's effects, ...
A predictive model for boiling heat transfer coefficient of dielectric fluids on metal foams
(2020-01-01)
Pool boiling is a suitable technique for direct immersion cooling in electronic devices coupled with dielectric fluids. However, these fluids have relatively poor thermophysical properties in contrast to water, and extremely ...
Carbon foams from sucrose employing different metallic nitrates as blowing agents: Application in CO2 capture
(Elsevier Science, 2019-08)
Carbon foams were prepared employing sucrose as the carbon source. The porosity of the materials as well as the morphology was controlled using different metallic nitrates during the synthesis, such as aluminum (obtaining ...