Приказ основних података о документу
Numeričko proučavanje procesa razmene toplote pri ključanju u velikoj zapremini
Numerical study of heat transfer during nucleate pool boiling
dc.creator | Stojanović, Andrijana | |
dc.creator | Stevanović, Vladimir | |
dc.creator | Petrović, Milan M. | |
dc.creator | Živković, Dragoljub | |
dc.creator | Stanković, Branislav | |
dc.date.accessioned | 2022-09-19T17:49:21Z | |
dc.date.available | 2022-09-19T17:49:21Z | |
dc.date.issued | 2016 | |
dc.identifier.issn | 2406-2979 | |
dc.identifier.uri | https://machinery.mas.bg.ac.rs/handle/123456789/2259 | |
dc.description.abstract | U ovom radu je izvršena trodimenzionalna numerička simulacija atmosferskog, zasićenog ključanja u velikoj zapremini. Primenjeni matematički model i numerička metoda omogućavaju potpuni prikaz ponašanja dvofazne mešavine na grejnoj površini kao i predviđanje slobodnog nivoa tečnosti. Ovde prikazano trodimenzionalno istraživanje je sprovedeno kako bi se uzela u obzir konvektivna razmena toplote na grejnoj površini kao i prostorni efekti generacije pare i dvofaznog toka, kao što su disprzija faza u dvofaznoj mešavini. Predstavljeni su rezultati simulacije nakon kratkog vremenskog perioda od početka zagrevanja i formiranja mehurova na grejnoj površini. Prikazani su popunjenost grejne površine vodom i parcijalna okvašenost površine za niže vrednosti toplotnog fluksa. Diskutovan je uticaj gustine nukleacije i vremena zadržavanja mehurova na grejnom zidu na dinamiku ključanja. Takođe je proučen uticaj intenziteta toplotnog fluksa na dinamiku ključanja u velikoj zapremini. Primenjeni numerički metod i matematički model je pokazao ispravnost, omogućavajući stabilan proračun za širok opseg primenjenih parametara pri modeliranju. | sr |
dc.description.abstract | In this paper three-dimensional numerical simulation of the atmospheric saturated pool boiling was performed. The applied modelling and numerical methods enable full representation of the two-phase mixture behaviour on the heating surface with the inclusion of the swell level prediction. The three-dimensional investigation presented here was performed in order to take into account a convective heat transfer on the heated surface, as well as spatial effects of the vapour generation and a two phase flow such as phase dispersion within the two-phase mixture. The results are presented for a short period of time after the initiation of the heat supply and vapor generation on the heating surface. The replenishment of the heating surface with water and partial surface wetting for lower heat fluxes is shown. The influence of the density of nucleation sites and the bubble residence time on the wall on the pool boiling dynamics is discussed. Also, the influence of the heat flux intensity on the pool boiling dynamics is investigated. The applied numerical and modelling method showed robustness by allowing stable calculations for wide ranges of applied modelling boiling parameters. | en |
dc.publisher | Univerzitet u Nišu - Tehnološki fakultet, Leskovac | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/33018/RS// | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Advanced Technologies | |
dc.subject | toplotni fluks | sr |
dc.subject | matematičko modeliranje | sr |
dc.subject | ključanje u velikoj zapremini | sr |
dc.subject | pool boiling | en |
dc.subject | mathematical modelling | en |
dc.subject | heat flux | en |
dc.title | Numeričko proučavanje procesa razmene toplote pri ključanju u velikoj zapremini | sr |
dc.title | Numerical study of heat transfer during nucleate pool boiling | en |
dc.type | article | |
dc.rights.license | BY | |
dc.citation.epage | 80 | |
dc.citation.issue | 1 | |
dc.citation.other | 5(1): 73-80 | |
dc.citation.rank | M52 | |
dc.citation.spage | 73 | |
dc.citation.volume | 5 | |
dc.identifier.doi | 10.5937/savteh1601073S | |
dc.identifier.fulltext | http://machinery.mas.bg.ac.rs/bitstream/id/1013/2256.pdf | |
dc.type.version | publishedVersion |