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Analiza delujočih sil na vrelni mehurček v pogojih vrenja v mikrogravitaciji : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoTroha, Tadej, 1997-, strojnikMehurčkasto vrenje je eden izmed najbolj učinkovitih in zanesljivih načinov za prenos toplote pri majhnih temperaturnih razlikah med površino in delovno tekočino. Proces je zanimiv tudi za prenos ... toplote in snovi v pogojih mikrogravitacije, zato so bili nedavno izvedeni tudi preizkusi vrenja na Mednarodni vesoljski postaji. V tem delu so analizirani posnetki mehurčkastega vrenja v bazenu v mikrogravitaciji ob prisotnosti visokonapetostnega električnega polja, ki zaradi zagotavljanja elektrostatičnih sil pospešuje odcepitev mehurčkov in s tem izboljšuje prenos toplote. Posnetki hitro tekoče video kamere so analizirani v programu MATLAB, implementirani so algoritmi za avtomatizirano obdelavo slik in detekcijo robov, izračunani so geometrijski parametri parnega mehurčka tekom rasti in sile, ki delujejo nanj. Ugotovljeno je, da v pogojih mikrogravitacije pri vrenju brez prisotnosti zunanjih sil prevladuje sila površinske napetosti, ki drži parni mehurček na grelni površini, v primeru vrenja ob prisotnosti električnega polja pa se njen vpliv zmanjša in se poveča vpliv hidrodinamične sile, ki pripomore k odlepljanju parnega mehurčka od grelne površine.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [T. Troha], 2022Language - slovenianCOBISS.SI-ID - 97514243
Author
Troha, Tadej, strojnik, 1997-
Other authors
Golobič, Iztok |
Zupančič, Matevž, 1990-
Topics
magistrske naloge |
nukleacijsko vrenje |
rast |
parni mehurčki |
mikrogravitacija |
sile |
metode zaznave roba |
master thesis |
nucleation boiling |
vapor bubble growth |
microgravity
Library | Call number – location, accession no. ... | Copy status |
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Faculty of Mechanical Engineering, Lj. | MAG 1043 IN: 70001043 |
available - reading room |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Troha, Tadej, strojnik, 1997- | |
Golobič, Iztok | 05566 |
Zupančič, Matevž, 1990- | 36685 |
Source: Personal bibliographies
and: SICRIS
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