Ocena varnostnih tveganj za tehnologije zelenega prehoda : magistrsko delo

Preložnik, Neja

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Title:	Ocena varnostnih tveganj za tehnologije zelenega prehoda : magistrsko delo
Authors:	ID Preložnik, Neja (Author) ID Novak-Pintarič, Zorka (Mentor) More about this mentor... ID Potrč, Sanja (Comentor)
Files:	MAG_Preloznik_Neja_2026.pdf (4,05 MB) MD5: 48A4CB952D25D4AEAD382ADA25BCAF33
Language:	Slovenian
Work type:	Master's thesis/paper
Typology:	2.09 - Master's Thesis
Organization:	FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:	V magistrskem delu obravnavamo varnostna tveganja, ki jih prinašajo tehnologije zelenega prehoda. V uvodnem delu predstavimo vodikove tehnologije, bioplin, fotovoltaične sisteme, litij-ionske baterije in tehnologije zajemanja in shranjevanja CO₂, ter pregled virov nevarnosti in industrijskih nesreč, povezanih z njimi. V nadaljevanju opišemo metodologijo ocenjevanja tveganj, ki temelji na metodi analize nevarnosti in operabilnosti HAZOP (angl. Hazard and Operability Study), metodi analize zaščitnih plasti LOPA (angl. Layer of Protection Analysis) in kvantitativni oceni tveganja QRA (angl. Quantitative Risk Assessment). Predstavljen pristop prikažemo na dveh študijah primera. Analiziramo vodikovo polnilno postajo z delovnim tlakom 700 bar v urbanem okolju in 1 MW kmetijsko bioplinarno z membranskim rezervoarjem v ruralnem okolju. Kot kritični scenarij vodikove postaje identificiramo prekoračitev projektnega tlaka v dozirni liniji, ki vodi v porušitev cevovoda in nekontrolirano uhajanje vodika. Kot kritični scenarij pri bioplinarni identificiramo masovno uhajanje bioplina iz membranskega rezervoarja. Za oba scenarija izračunamo kazalnike tveganja, kot so individualno tveganje (IR), povprečno tveganje smrti (ARD), povprečno individualno tveganje (IRpovp) in stopnjo smrtnih nesreč (FAR), ki jih primerjamo z mejami sprejemljivosti po načelu ALARP (angl. As Low As Reasonably Practicable). Rezultati kažejo, da po vključitvi neodvisnih zaščitnih plasti obe tehnologiji izpolnjujeta kriterije sprejemljivega tveganja po načelu ALARP, vendar z različnima odmikoma od spodnje meje cone ALARP za individualno tveganje splošne populacije, ki znaša 1 × 10⁻⁶ a⁻¹. Vodikova polnilna postaja se z vrednostjo povprečnega individualnega tveganja 4,13 × 10⁻⁹ a⁻¹ uvršča približno med dva do tri rede velikosti pod mejo sprejemljivosti, bioplinarna z vrednostjo 1,32 × 10⁻⁷ a⁻¹ za skoraj en red velikosti. Rezultati kvantitativne analize tveganja kažejo, da bioplinarna ob predpostavkah in omejitvah uporabljene metodologije dosega višje ravni tveganja kot vodikova polnilna postaja.
Keywords:	ocena tveganja, zeleni prehod, vodik, bioplin, HAZOP, LOPA, QRA
Place of publishing:	Maribor
Place of performance:	Maribor
Publisher:	[N. Preložnik]
Year of publishing:	2026
Number of pages:	1 spletni vir (1 datoteka PDF (XII, 83 str.))
PID:	20.500.12556/DKUM-98181
UDC:	502.7:504:620.92/.07(043.2)
COBISS.SI-ID:	285006083
Publication date in DKUM:	16.07.2026
Views:	193
Downloads:	16
Metadata:
Categories:	KTFMB - FKKT
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Licences

License:	CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Link:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:	The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:	22.05.2026

Secondary language

Language:	English
Title:	Safety risk assessment of green transition technologies
Abstract:	This master's thesis examines the safety risks associated with green transition technologies. The introductory section covers hydrogen technologies, biogas, photovoltaic systems, lithium-ion batteries, and carbon capture and storage technologies, along with an overview of hazard sources and industrial accidents related to them. The methodology chapter describes a risk assessment framework based on Hazard and Operability Study (HAZOP), Layer of Protection Analysis (LOPA), and Quantitative Risk Assessment (QRA). The approach is demonstrated through two case studies. We analyse a hydrogen fueling station operating at 700 bar in an urban environment and a 1 MW agricultural biogas plant with a membrane storage tank in a rural setting. The critical scenario for the hydrogen station is identified as overpressure in the dispensing line leading to pipeline failure and uncontrolled hydrogen release. For the biogas plant, the critical scenario is a major leak from the membrane tank. For both scenarios, risk metrics are calculated — including individual risk (IR), average risk of death (ARD), average individual risk (IRpovp), and fatal accident rate (FAR) — and compared against acceptability thresholds under the ALARP (As Low As Reasonably Practicable) principle. Results show that after incorporating independent protection layers, both technologies meet the ALARP acceptability criteria, though with differing margins below the lower boundary of the ALARP region for individual risk to the general public, set at 1 × 10⁻⁶ a⁻¹. The hydrogen fueling station, with an average individual risk of 4.13 × 10⁻⁹ a⁻¹, falls approximately two to three orders of magnitude below the acceptability threshold; the biogas plant, at 1.32 × 10⁻⁷ a⁻¹, falls by nearly one order of magnitude. The quantitative risk analysis results indicate that, within the assumptions and limitations of the methodology applied, the biogas plant reaches higher risk levels than the hydrogen fueling station.
Keywords:	risk assessment, green transition, hydrogen, biogas, HAZOP, LOPA, QRA

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