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undergraduate thesis
Fizikalna karakterizacija sustava kapljevina-kapljevina
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. urn:nbn:hr:149:846060
Ćosić, Ana Maria
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Ćosić, A. M. (2022). Fizikalna karakterizacija sustava kapljevina-kapljevina (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:846060

Ćosić, Ana Maria. "Fizikalna karakterizacija sustava kapljevina-kapljevina." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:149:846060

Ćosić, Ana Maria. "Fizikalna karakterizacija sustava kapljevina-kapljevina." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:149:846060

Ćosić, A. M. (2022). 'Fizikalna karakterizacija sustava kapljevina-kapljevina', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:846060

Ćosić AM. Fizikalna karakterizacija sustava kapljevina-kapljevina [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2022 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:846060

A. M. Ćosić, "Fizikalna karakterizacija sustava kapljevina-kapljevina", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:149:846060

Metadata
TitleFizikalna karakterizacija sustava kapljevina-kapljevina
Title (english)Physical characterization of liquid-liquid systems
AuthorAna Maria Ćosić
MentorAleksandra Sander (mentor)
Committee memberAleksandra Sander (predsjednik povjerenstva)
Committee memberKrunoslav Žižek (član povjerenstva)
Committee memberMarijana Kraljić Roković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2022-09-13, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Sustavi nemješivih kapljevina odnosno emulzije tipa ulje-voda nalaze primjenu u brojnim industrijskim granama poput kemijske, petrokemijske i farmaceutske industrije. Poznavanje njihovog reološkog i hidrodinamičkog ponašanja, kao i njihova karakterizacija, od iznimne je važnosti. U ovom radu istražena su svojstva dvaju nemješivih sustava ulje-voda. Promatrane su emulzije maslinovog odnosno kukuruznog ulja i destilirane vode. Istraživanje je započelo fizikalnom karakterizacijom čistih ulja mjerenjem viskoznosti, gustoće, kiselinskog broja i površinske napetosti. Zatim je za dvofazne sustave s različitim udjelima vode određena snaga i brzina vrtnje miješala potrebna za uspostavu potpune disperzije. Istraženi su fenomeni pojave inverzija faza, promjena veličine kapljica disperzne faze s promjenom brzine vrtnje miješala, veličina kapljica disperzne faze tijekom stanja potpune disperzije te na kraju sklonost sustava koalescenciji odnosno vrijeme potrebno za razdvajanje faza nakon prestanka miješanja.
Abstract (english)
Immiscible liquid-liquid systems such as oil-water emulsions find application in numerous industrial branches, most commonly in the chemical, petrochemical and pharmaceutical industries. The characterization of such systems and the knowledge about their rheological and hydrodynamical behaviour is particularly important for their utilization. This work investigates the properties of two immiscible oil-water systems. The characterized systems consist of olive and corn oil mixed with distilled water. The investigation started with physical characterization of oils, by measuring viscosity, density, acid number and surface tension. It was followed by determination of the power and rotation speed of the stirrer required for the complete dispersion establishment in the oil-water systems. The investigated phenomena include phase inversion, the change in the size of the dispersed phase droplets with a change in the speed of the stirrer rotation, the size of the dispersed phase droplets during the state of complete dispersion and finally the tendency of the system to coalesce, i.e. the time required for the separation of the phases to occur after the mixing stopped.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:846060
ProjectNumber: KK.01.1.1.04.0070
Title: Razvoj sustava za ispitivanje višefaznih strujanja i izgaranja s ciljem povećanja istraživačkih aktivnosti znanstvenog i poslovnog sektora
Acronym: RESIN
Leader: Milan Vujanović
Jurisdiction: Croatia
Funder: MRRFEU
Funding stream: Nema
Study programmeTitle: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Environmental chemistry and green technologies
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-02-21 08:47:39