Procesi ob stiku razlitja nafte z morsko obalo

diplomska naloga

Romina Korenika (Author), Dušan Žagar (Mentor)

Abstract

V diplomski nalogi obravnavamo procese odlaganja in sproščanja nafte na obalo in z obale v primeru naftnega razlitja. Prikazali smo različne načine določanja maksimalne kapacitete zadrževanja nafte na obali in ugotovili, da je ta odvisna predvsem od tipa obale in vrste nafte. Na podlagi zasnovane klasifikacije tipov obale v Sloveniji smo izbrali primer odseka peščene in prodnate obale, za katera smo izračunali maksimalno zadrževalno kapaciteto obale. Za račun smo uporabili preprosto empirično enačbo, ki ponuja ugodno razmerje med številom potrebnih in razpoložljivih podatkov ter v literaturi ovrednoteno zanesljivostjo rezultatov. Račun smo izvedli v programu Microsoft Excel, v katerem smo izdelali preglednico, ki omogoča hitro in enostavno računanje. Pristop, ki smo ga izbrali, omogoča razmeroma preprosto vgradnjo v numerične modele širjenja naftnih madežev in bi lahko prispeval k večji zanesljivosti tovrstnih modelov. Za izbrana odseka peščene in prodnate obale smo izvedli tudi račun sproščanja nafte z obale, pri katerem smo predpostavili, da je zapolnjena maksimalna kapaciteta obale. Ugotovili smo, da se proces sproščanja nafte s peščene obale zaključi že po nekaj dneh, medtem ko je pri prodnati obali proces daljši za tri do štiri velikostne rede. Poznavanje količine sproščene nafte v morje in časa sproščanja za različne tipe nafte in obale lahko ustreznim službam omogoči smiselno ukrepanje oziroma zaščito predelov obale, ki bi jih sproščena nafta lahko dosegla.

Keywords

gradbeništvo;diplomska naloga;UNI;VOI;nafta;razlitje;odlaganje;sproščanje;Tržaški zaliv;

Data

Language:	Slovenian
Year of publishing:	2015
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[R. Korenika]
UDC:	502.51(26):504.5:665.6(043.2)
COBISS:	7223649
Views:	2145
Downloads:	415
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Oil spill stranding processes
Secondary abstract:	In the thesis, we discuss the processes of stranding and release of oil on the coast and off the coast in the case of an oil spill. We presented different ways of determining the maximum oil–holding capacity of the beach, and established that the retention mainly depends on the types of coastline and type of oil. Based on the classification of the coastline types in Slovenia, we chose a section of sandy and gravelly coastline as an example. For these types of coastlines, we calculated maximum oil–holding capacities of the coast. In calculations, we used a simple empirical equation that offers favourable ratio among the number of necessary and available data, and good reliability of the results estimated in literature. Calculations were performed in Microsoft Excel, using a newly created table that enables fast and simple calculations. The chosen approach enables relatively simple installation into numerical models of oil spills, and could contribute to higher reliability of such models. For the chosen sections of sandy and gravelly coastlines, we also carried out calculations of oil release off the coast, in which we presumed that the maximum capacity of the coast is filled up. We established that the process of oil release off a sandy coast is completed in a few days, while on a gravelly coast it lasts longer for three to four orders of magnitude. The knowledge on the quantity of oil released to the sea and the time of release for different types of oil and coastlines is important. It can enable the corresponding services to intervene reasonably and to protect the coastline sections that could be reached by the released oil.
Secondary keywords:	graduation thesis;oil spill;stranding;release;Gulf of Trieste;
File type:	application/pdf
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	VIII, 38 str.
ID:	9055931