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Hidrofobne in hidrofilne bakrene površine za izboljšan prenos toplote pri mehurčkastem vrenju vode : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoKoplan, DavidV magistrski nalogi smo raziskali uporabo hidrofobnih in hidrofilnih lasersko strukturiranih površin za izboljšanje prenosa toplote pri mehurčkastem vrenju vode. Na površinah smo z uporabo ... vlakenskega bliskovnega laserja pripravili različne mikrostrukture, s hidrofobizacijo izbranih vzorcev smo zasledovali dodatno znižanje pregretja površine. Pokazali smo, da na vseh funkcionaliziranih površinah zabeležimo izboljšanje intenzivnosti prenosa toplote pri vrenju, kar se odrazi v dvigu kritične gostote toplotnega toka in povečanju koeficienta toplotne prestopnosti. Dodatno smo zabeležili zgodnejši prehod v režim mehurčkastega vrenja, kar je bilo izrazito predvsem na hidrofobiziranih površinah. Dosegli smo koeficiente toplotne prestopnosti do 287 kW/m2K, kar pomeni 9-kratno izboljšanje v primerjavi z neobdelano površino. Najvišja kritična gostota toplotnega toka je znašala 1660 kW/m2, kar predstavlja 83 % izboljšanje v primerjavi z neobdelano površino. Z razvitimi površinami bi lahko pomembno izboljšali intenzivnost odvoda toplote v aplikacijah, kjer nastopajo koncentrirane toplotne obremenitve zaradi generacije toplote na majhnih površinah.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [D. Koplan], 2022Language - slovenianCOBISS.SI-ID - 107055107
Author
Koplan, David
Other authors
Golobič, Iztok |
Može, Matic
Topics
magistrske naloge |
mehurčkasto vrenje |
prenos toplote |
lasersko obdelane površine |
vrenje v bazenu |
koeficient toplotne prestopnosti |
master thesis |
heat transfer |
nucleate boiling |
laser surface texturing
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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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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Koplan, David | |
Golobič, Iztok | 05566 |
Može, Matic | 52341 |
Source: Personal bibliographies
and: SICRIS
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