Volume 94,   №5

EVAPORATIVE COOLING OF A SUBSTRATE BY A PULSE-PERIODIC SPRAY WITH FEMTOLITER DROPLETS



Dissipative energy fl uxes in evaporative cooling of a substrate by droplets carried in by an air fl ow have been measured. It has been shown that the frequency of feeding the spray and the difference between its temperature and the temperature of the substrate infl uence the effi ciency of its cooling. Spraying pulses with a relative duration of 0.5 and 0.25 have been investigated. It has been found that the form of these pulses does not infl uence, in practice, the intensity of cooling of the substrate at spray-feed frequencies higher than 3 Hz. It has been confi rmed that the thermal conductivity and thickness of the substrate substantially infl uence the value of the energy fl ux dissipated by it.
 
 
Author:  V. I. Saverchenko, S. P. Fisenko
Keywords:  relative pulse duration, thermal conductivity of the substrate, substrate temperature, dissipative flux
Page:  1227

V. I. Saverchenko, S. P. Fisenko .  EVAPORATIVE COOLING OF A SUBSTRATE BY A PULSE-PERIODIC SPRAY WITH FEMTOLITER DROPLETS //Journal of engineering physics and thermophysics. . Volume 94, №5. P. 1227.


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