Heterogeneous condensation of steam in nozzles with different expansion rate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F06%3A00000233" target="_blank" >RIV/49777513:23520/06:00000233 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Heterogeneous condensation of steam in nozzles with different expansion rate
Original language description
The two-population numerical model of hetero-homogeneous condensation is used for the calculation of the wet steam flow with condensation in convergent-divergent nozzles. This computational model applies governing equations of the wet steam flow and equations of spontaneous nucleation. Parallel heterogeneous nucleation is evaluated on the assumption that heterogeneous water droplets originate by nucleation on chemical impurity (NaCl) in Salt Solution Zone (SSZ) close above the steam saturation line. Thecalculation results of the flow in the nozzles with mean expansion rates = 4500 s-1 and = 1000 s-1 in divergent nozzle parts are described and the effects of heterogeneous and/or spontaneous nucleation and condensation are discussed and compared with experiments.
Czech name
Heterogenní kondenzace páry v dýzách s různou expanzní rychlostí
Czech description
Použitý numerický model hetero-homogenní kondenzace aplikuje rovnice mechaniky tekutin a vztahy pro spontánní nukleaci na proudění páry ve dvou dýzách s různou expanzní rychlostí. Diskutují se výsledky výpočtů ve srovnání s experimenty.

Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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