Open AccessFeatures of metastable superheated water atomization when being discharged through convergent-divergent nozzles at different superheat values
Author(s) -
V. I. Zalkind,
V L Nizovskiy,
L V Nizovskiy,
S S Schigel
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2088/1/012054
Subject(s) - superheating , flashing , dimensionless quantity , nozzle , metastability , nucleation , thermodynamics , mass fraction , mechanics , inlet , materials science , chemistry , physics , metallurgy , mechanical engineering , organic chemistry , engineering
Experiments with the metastable superheated water atomization proved the significant increase of the submicron droplets mass fraction at the outlet of convergent-divergent nozzle from 0.45-0.55 to 0.75-0.9 with an increase of the inlet water temperature from170to255°C. Two different approaches to dimensionless treatment of the atomization processdata and determining the boundary of the zone of flashing predominance are compared. The analysis of two approaches to dimensionless treatment of experimental and calculating results concerning transition to predominating role of nucleation in the process of superheated liquid atomization in convergent-divergent nozzles is done.