diplomska naloga
Maja Šaponja (Avtor), Dušan Žagar (Mentor), Simon Rusjan (Član komisije za zagovor), Mitja Brilly (Član komisije za zagovor), Mojca Šraj (Član komisije za zagovor)

Povzetek

Izhlapevanje je eden izmed najpomembnejših procesov, ki potekajo med in po razlitju nafte. Zato je ključnega pomena, da pri modeliranju razlitja nafte izhlapevanje upoštevamo. Za opis procesa izhlapevanja nafte se v modelih največkrat uporabljata Mackayeva in Fingasova metoda. Mackayeva metoda temelji na opazovanju izhlapevanja vode in pri tem upošteva mejno plast. Pri Fingasovi metodi izhlapevanje nafte ni regulirano z mejno plastjo. Na UL FGG je bil izdelan tridimenzionalni model NAFTA3d, ki temelji na Lagrangeovi metodi sledenja delcev. V okviru diplomske naloge smo model NAFTA3d nadgradili. Metodo Mackay smo v modelu NAFTA3d dopolnili tako, da za račun izhlapevanja namesto številnih vhodnih podatkov zadošča API-indeks..Model smo dopolnili z metodo Fingas, ki temelji na laboratorijskih poizkusih in empiričnih enačbah, ki so funkcija temperature in časa. Obe metodi smo med seboj primerjali na istih podatkih v simulacijah razlitja nafte v Tržaškem zalivu. Uporabili smo nafto vrste Brent Blend in nafto vrste Prudhoe Bay. Iz dobljenih rezultatov smo ugotovili, da metoda Mackay daje znatno višje vrednosti izhlapevanja, kar posledično vpliva tudi na ostale procese, ki se zgodijo ob razlitju.

Ključne besede

gradbeništvo;diplomska naloga;UNI;VKI;razlitje nafte;izhlapevanje;matematično modeliranje;metoda Mackay;metoda Fingas;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: M. Šaponja]
UDK: 519.61/.64:551.461:665.61(043.2)
COBISS: 6590817 Povezava se bo odprla v novem oknu
Št. ogledov: 1878
Št. prenosov: 438
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Modelling of oil evaporation by Fingas approach
Sekundarni povzetek: Evaporation is one of the most important processes during an oil spill and needs to be included into the oil spill models. The oil-spill models mostly employ either the Mackay or the Fingas method for description and simulations of evaporation. The Mackay method is a boundary-layer regulated method based on observations of water evaporation. The Fingas approach is not regulated with the boundary layer. NAFTA3d is a 3D Lagrangean numerical model for oil-spill simulations, developed at the UL FGG, The NAFTA3d model was upgraded by adjusting the Mackay method, which is now capable to calculate the evaporation solely from the API-index instead of using numerous input parameters. The model was upgraded by including the Fingas method, which is based on laboratory experiments. In this method the evaporation of oil is described by empirical equations, which are function of temperature and time. Both methods have been intercompared on the same set of input data. We simulated an oil spill in the Gulf of Trieste using two different types of oil: the Brent Blend crude and Prudhoe Bay crude. The simulation results showed significantly higher evaporation using the Mackay method, which affects the other process in the case of an oil spill.
Sekundarne ključne besede: graduation thesis;civil engineering;oil spill;evaporation;numerical modelling;Mackay's method;Fingas method;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XII, 48 str., 1 pril.
Vrsta dela (ePrints): thesis
Naslov (ePrints): Modeliranje izhlapevanja nafte po metodi Fingas
Ključne besede (ePrints): razlitje nafte;izhlapevanje;matematično modeliranje;metoda Mackay;metoda Fingas
Ključne besede (ePrints, sekundarni jezik): oil spill;evaporation;numerical modelling;Mackay's method;Fingas method
Povzetek (ePrints): Izhlapevanje je eden izmed najpomembnejših procesov, ki potekajo med in po razlitju nafte. Zato je ključnega pomena, da pri modeliranju razlitja nafte izhlapevanje upoštevamo. Za opis procesa izhlapevanja nafte se v modelih največkrat uporabljata Mackayeva in Fingasova metoda. Mackayeva metoda temelji na opazovanju izhlapevanja vode in pri tem upošteva mejno plast. Pri Fingasovi metodi izhlapevanje nafte ni regulirano z mejno plastjo. Na UL FGG je bil izdelan tridimenzionalni model NAFTA3d, ki temelji na Lagrangeovi metodi sledenja delcev. V okviru diplomske naloge smo model NAFTA3d nadgradili. Metodo Mackay smo v modelu NAFTA3d dopolnili tako, da za račun izhlapevanja namesto številnih vhodnih podatkov zadošča API-indeks..Model smo dopolnili z metodo Fingas, ki temelji na laboratorijskih poizkusih in empiričnih enačbah, ki so funkcija temperature in časa. Obe metodi smo med seboj primerjali na istih podatkih v simulacijah razlitja nafte v Tržaškem zalivu. Uporabili smo nafto vrste Brent Blend in nafto vrste Prudhoe Bay. Iz dobljenih rezultatov smo ugotovili, da metoda Mackay daje znatno višje vrednosti izhlapevanja, kar posledično vpliva tudi na ostale procese, ki se zgodijo ob razlitju.
Povzetek (ePrints, sekundarni jezik): Evaporation is one of the most important processes during an oil spill and needs to be included into the oil spill models. The oil-spill models mostly employ either the Mackay or the Fingas method for description and simulations of evaporation. The Mackay method is a boundary-layer regulated method based on observations of water evaporation. The Fingas approach is not regulated with the boundary layer. NAFTA3d is a 3D Lagrangean numerical model for oil-spill simulations, developed at the UL FGG, The NAFTA3d model was upgraded by adjusting the Mackay method, which is now capable to calculate the evaporation solely from the API-index instead of using numerous input parameters. The model was upgraded by including the Fingas method, which is based on laboratory experiments. In this method the evaporation of oil is described by empirical equations, which are function of temperature and time. Both methods have been intercompared on the same set of input data. We simulated an oil spill in the Gulf of Trieste using two different types of oil: the Brent Blend crude and Prudhoe Bay crude. The simulation results showed significantly higher evaporation using the Mackay method, which affects the other process in the case of an oil spill.
Ključne besede (ePrints, sekundarni jezik): oil spill;evaporation;numerical modelling;Mackay's method;Fingas method
ID: 8327080