FIELD: physics.
SUBSTANCE: in the channel, on one side, which is the surface of the fuel element substrate, longitudinal micro-grooves are provided or longitudinal bands of hydrophobic nanocoating are applied forming micro-stream fluid flows. The hydrophobic nanocoating that confines the micro-stream flow along the edges can be applied to the inner surface of all the walls of the mini-or microchannel or only to the surface of the substrate on both sides of the electronic fuel element.
EFFECT: significant intensification of heat transfer in microsystems, stable operation both in terrestrial conditions and in zero gravity, including in all non-standard situations.
4 cl, 6 dwg
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