INFLUENCE OF ROUGHNESS OF VERTICAL SURFACE HEAT EXCHANGER ON HEAT TRANSFER WHEN COOLING WITH PULSE AEROSOL
The paper presents the results of experimental research of influence of a roughness of the copper coating of low-temperature isothermal surface on average heat transfer during the cooling of the pulsed gas-droplet stream. The integrated heat flow was registered with a digital calorimeter at a given duty cycle of the liquid phase. It is shown that in the regime of small specific consumption of liquid there is an increase of heat transfer efficiency at a certain mass coating single-walled carbon nanotubes "TUBALL". With the increasing thickness of the cooling film efficiency of heat transfer decreases and when the thickness D<0.5 mm the heat transfer coefficient is compared with the regime without coverage.