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Spatial–temporal thermal‐fluid behaviors of microbubble emission boiling (MEB)
Author(s) -
Horiuchi Kazuna,
Kobayashi Hotaka,
Miyashita Shu,
Hori Takuma,
Ueno Ichiro
Publication year - 2021
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.17193
Subject(s) - boiling , chemistry , bubble , boiling point , mechanics , thermodynamics , materials science , physics
We investigate non‐uniform behaviors in space of the microbubble emission boiling (MEB). Special attention is paid to radial temperature difference on the heated surface before/after the onset of the MEB. Correlation among the regimes of the MEBs, the radial temperature difference in the heated surface and the vapor bubble behaviors is indicated experimentally. We find that the surface temperature near the center becomes higher in the transition to the MEB, and then it becomes lower in the developed MEB. It is found that a linear correlation between the power input to the heaters and the resultant heat flux on the heated surface breaks in the transition of the MEB. The difference of the MEB regimes, S‐MEB and C‐MEB, is apparently distinguishable by monitoring the radial temperature difference of the heated surface.