Model of the heat exchange in boiling emulsions with low-boiling disperse phase at the solid wall

Abstract

Comparison of the calculated dependencies obtained for boiling emulsion with low-boiling dispersed phase based on the model of Labuntsov [1] for an advanced boiling homogeneous liquid at the solid wall, have been compared with the experimental data presented in [3]. The obtained model curve was in good agreement with measurements of heat flux in boiling water emulsion is heated platinum wire. It has been determined, that all the experimental points are grouped around two curves with different model constants that can be interpreted as the presence of two modes the nucleate boiling.

Features of the breakage drops low boiling dispersed phase in gradient flow near the heated surface

“…In Fig. 2 shows the results of applying formula (16) for processing the experimental data obtained in [12] for the emulsion of the organic liquid n-pentane/glycerin This grouping corresponds to previously established modes of boiling: the first bubble (0.0001 -0.01%) and the second bubble, but with a steam film (concentration of more than 0.1%), modes [10]. It is obvious that there are two bubble boiling regime.…”

“…The oscillation energy of the interfacial surface stimulates the formation of vapor nuclei of critical size. Limited to the assumptions that boil only the "surface" drop [10], it proposed that the ratio of the heat flux during boiling of the emulsion with dispersed low-temperature phase:…”