Lokalni prenos mase i vizualizacija toka oko cilindra u fluidizovanom sloju tečno-čvrsto Naučni rad

Glavni sadržaj članka

Nevenka Bošković-Vragolović
https://orcid.org/0000-0002-3365-6052
Danica Brzić
https://orcid.org/0000-0002-8109-316X
Katarina Šućurović
https://orcid.org/0000-0001-9587-2773
Rada Pjanovic
https://orcid.org/0000-0002-0817-182X
Darko Jaćimovski
https://orcid.org/0000-0001-9434-0767
Radmila Garić-Grulović
https://orcid.org/0000-0002-1474-6474

Apstrakt

U ovom radu je primenjena adsorpciona metoda za vizualizaciju strujanja i određivanje lokalnih i srednjih koeficijenata prenosa mase na horizontalni cilindar u tečno-čvrsto fluidizovanom sloju. Dobijena polja koncentracije na adsorbentu (folije silika gela) predstavljaju kvalitativnu sliku strujanja oko cilindra. Poređenjem koncentracionih polja oko cilindra u jednofaznom toku i u fluidizovanom sloju, uočeno je da fluidizovane čestice značajno ometaju formiranje i odvajanje graničnog sloja. Lokalni koeficijenti prenosa mase su značajno zavisili od ugaonog položaja tačke na površini cilindra i pokazali su maksimum pri uglu 140° (mereno u odnosu na zaustavnu tačku koja predstavlja ugao od 0°). Odabrane korelacije su primenjene za predviđanje prosečnih vrednosti koeficijenata prenosa mase, a dve najbolje su pokazivale odstupanja od eksperimentalnih podataka do 5 %.

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Višefazni sistemi u hemijskom inženjerstvu

Kako citirati

[1]
N. Bošković-Vragolović, D. Brzić, K. Šućurović, R. Pjanovic, D. . Jaćimovski, and R. Garić-Grulović, “Lokalni prenos mase i vizualizacija toka oko cilindra u fluidizovanom sloju tečno-čvrsto: Naučni rad”, Hem Ind, vol. 78, no. 3, pp. 147–159, Sep. 2024, doi: 10.2298/HEMIND231023018B.

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Reference

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