Experimental study on thermal and flow characteristics of metal foam heat pipe radiator

Numerical Heat Transfer and Fluid Flow: New Advances

“…Recently, great interest has been shown in the application of metal foams to highpower batteries, heat and cooling devices, and compact electronic heat sinks [22]. Metal foams can reduce the size and mass of devices because of their low density.…”

Analysis of the Heat Transfer in Electronic Radiator Filled with Metal Foam

“…Porous metal foam structures with high specific surface area, high permeability properties and high mechanical strength are being explored as an alternative material to conventional heat exchangers. In the field of heat transfer [13][14][15][16], metal foam holds great promise for applications in multifunctional heat exchangers [17][18][19], cooling systems [20][21][22][23], highpower batteries, compact electronic heat sinks [23][24][25][26][27][28] and so on. Porous metal foam can significantly reduce the size and mass of equipment when used in heat transfer equipment due to their light mass and low density.…”

“…Metal foam has also been investigated experimentally. Kim et al and Shen et al [14,15] found that the use of metal foam significantly reduces the overall thermal resistance compared to a conventional finned heat pipe heat sink. Hsieh et al [29] experimentally investigated the effects of porosity, pore density (PPI) and air flow rate on the heat transfer characteristics of the aluminum foam heat sinks and found that the increase in porosity and pore density enhanced the non-local thermal equilibrium phenomenon.…”

“…Bhattacharya et al [35] investigated forced convection heat transfer in a new finned metal foam heat sink, showing that when fins were added to the metal foam, the heat transfer was significantly enhanced, and the heat transfer coefficient increased with the number of fins until the addition of more fins would lead to the interference with the thermal boundary layer and retard heat transfer. Shen et al [15] conducted a systematic study and analysis of the thermal and flow characteristics at different air speeds and thermal powers through experiments. It was found that the introduced metal foam significantly reduced the overall thermal resistance by 25.5% compared to a conventional finned heat pipe heat sink.…”

Stainless steel foam as wick material in heat pipe for electronics cooling application

“…Larger thermal resistance was obtained on the copper foam with less PPI that could reduce the liquid capillary [12]. Experimental study conducted replaced the fins on the heat sink with metal foam to improve the heat dissipation capability in a heat pipe [13]. An improvement from the previous reference which required a welding method to connect the metal foam to the heat pipe [14].…”