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Title:Sinteza vodikove oskrbovalne mreže z integrirano optimizacijo procesne sheme : magistrsko delo
Authors:ID Petrovič, Rok (Author)
ID Čuček, Lidija (Mentor) More about this mentor... New window
ID Potrč, Sanja (Comentor)
Files:.pdf MAG_Petrovic_Rok_2026.pdf (8,64 MB)
MD5: 39EB2108553136E01E7084CEF27D49E8
 
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 smo razvili večkriterijski večperiodni model mešano celoštevilskega linearnega programiranja (MILP) za sintezo decentralizirane oskrbovalne mreže vodika v Sloveniji. Namen dela je bil določiti optimalno zasnovo decentralizirane oskrbovalne mreže vodika ob sočasni obravnavi ekonomskih in okoljskih vidikov. Oskrbovalna mreža je zasnovana kot superstruktura, ki povezuje tri ključne nivoje sistema: nivo oskrbe z energijo, procesni nivo in nivo povpraševanja po vodiku. Nivo oskrbe z električno energijo vključuje proizvodnjo električne energije iz fotonapetostnih sistemov in vetrnih elektrarn ter oskrbo iz slovenskega elektroenergetskega omrežja, pri čemer sta upoštevani prostorska in časovna spremenljivost razpoložljivosti obnovljivih virov energije. Procesni nivo zajema proizvodnjo vodika z alkalno elektrolizo (AEL) in elektrolizo s protonsko izmenjevalno membrano (PEM) ter skladiščenje in pripravo vodika za transport s komprimiranjem ali utekočinjanjem. Distribucija vodika omogoča oskrbo industrijskih porabnikov in vodikovih polnilnih postaj s cestnim ali cevovodnim transportom. Vzporedno smo izvedli analizo življenjskega cikla (LCA), s katero smo ovrednotili okoljske vplive obravnavanih procesov. V optimizacijski model je bil kot okoljski kriterij vključen potencial globalnega segrevanja (GWP). Optimalna topologija oskrbovalne mreže in zasnova procesne sheme sta bili določeni pri treh optimizacijskih kriterijih: ekonomskem, okoljskem ter sestavljenem ekonomsko-okoljskem kriteriju. Rezultati so pokazali, da se je rešitev pri sestavljenem kriteriju nahajala blizu ekonomskega ekstrema Pareto krivulje in da je bil pri njej dosežen najnižji izravnani strošek vodika (LCOH) 5,288 €/kg H2, pri proizvodnji 55,6 kt H2/a in skupnih stroških približno 294 M€/a. Pri ekonomskem in sestavljenem kriteriju je bil izbran večji delež lokalne proizvodnje vodika, distribucija pa je potekala pretežno s cestnim transportom. Pri okoljskem kriteriju, tj. pri minimiranju GWP, je bila proizvodnja vodika bolj prostorsko razpršena, distribucija pa je potekala izključno po cevovodih. V vseh obravnavanih rešitvah je proizvodnja električne energije temeljila predvsem na vetrnih elektrarnah. Pri ekonomskem in sestavljenem kriteriju je bila kot tehnologija elektrolize izbrana AEL, pri okoljskem kriteriju pa PEM elektroliza. Rezultati LCA so pokazali, da znaša najmanjši GWP približno 1,5 kg CO2 ekv./kg H2.
Keywords:vodik, oskrbovalna mreža vodika, decentralizirana proizvodnja vodika, optimiranje superstrukture, večkriterijsko večperiodno optimiranje, analiza življenjskega cikla
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[R. Petrovič]
Year of publishing:2026
Number of pages:1 spletni vir (1 datoteka PDF (XVIII, 104 str.))
PID:20.500.12556/DKUM-99381 New window
UDC:66.011/.012(043.2)
COBISS.SI-ID:291273987 New window
Publication date in DKUM:16.09.2026
Views:77
Downloads:8
Metadata:XML DC-XML DC-RDF
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:14.08.2026

Secondary language

Language:English
Title:Synthesis of hydrogen supply network with integrated process flowsheet optimization
Abstract:A multi-objective, multiperiod mixed-integer linear programming (MILP) model was developed for the synthesis of a decentralized hydrogen supply network in Slovenia. The aim of the study was to determine the optimal design of the decentralized hydrogen supply network while simultaneously considering economic and environmental aspects. The supply network was formulated as a superstructure integrating three key system levels: the energy supply level, the process level, and the hydrogen demand level. The electricity supply level included electricity generation from photovoltaic systems and wind power plants, as well as electricity supply from the Slovenian power grid, while accounting for the spatial and temporal variability in renewable energy availability. The process level included hydrogen production by alkaline electrolysis (AEL) and proton exchange membrane electrolysis (PEM), as well as hydrogen storage and conditioning for transport by compression or liquefaction. Hydrogen distribution enabled the supply of industrial consumers and hydrogen refuelling stations by road or pipeline transport. In parallel, a life cycle assessment (LCA) was conducted to evaluate the environmental impacts of the considered processes. Global warming potential (GWP) was incorporated into the optimization model as the environmental criterion. The optimal supply network topology and process configuration were determined under three optimization criteria: the economic criterion, the environmental criterion, and the composite economic-environmental criterion. The results showed that the solution obtained under the composite criterion was located close to the economic extreme of the Pareto front and achieved the lowest levelized cost of hydrogen (LCOH), amounting to 5.288 €/kg H2 at a hydrogen production rate of 55.6 kt H2/a and total annual costs of approximately 294 M€/a. Under the economic and composite criteria, a higher share of local hydrogen production was selected, while distribution was carried out predominantly by road transport. Under the environmental criterion, i.e. when GWP was minimized, hydrogen production was more spatially distributed and distribution was carried out exclusively by pipeline. In all considered solutions, electricity generation was based predominantly on wind power. AEL was selected as the electrolysis technology under the economic and composite criteria, whereas PEM electrolysis was selected under the environmental criterion. The LCA results showed that the minimum GWP amounted to approximately 1.5 kg CO2-eq./kg H2.
Keywords:hydrogen, hydrogen supply network, decentralized hydrogen production, superstructure optimization, multi-objective multiperiod optimization, life cycle assessment


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