20.500.12556/DKUM-92768 Računalniška simulacija proizvodnje vodika s parnim reformiranjem etanola za uporabo v trdno oksidnih gorivnih celicah magistrsko delo Computer simulation of hydrogen production by ethanol steam reforming for the utilization in solid oxide fuel cells V magistrskem delu je prikazana uporaba energije vodika kot goriva za tehnologijo sistemov trdno oksidnih gorivnih celic (SOFC). Obravnavan je proces pridobivanja vodika po reakcijah parnega reformiranja etanola v napravi reformer. Izvedena je implementacija kemijskih reakcij z uporabo programskega vmesnika AVL User Coding Interface (AUCI). Izdelan kinetični model je uporabljen v komponenti katalitični pretvornik za 1D model reformerja v programskem paketu AVL CRUISE™ M. Izvedena je simulacija modela reformerja, kjer so opazovani vplivi temperature in razmerja pare proti etanolu (razmerje S/E) na proces parnega reformiranja etanola. Iz rezultatov je razvidno, da ima največji vpliv na nastanek najvišje koncentracije vodika povišana temperatura ter nižje razmerje S/E, kar velja za najboljše termodinamične pogoje procesa parnega reformiranja etanola. Model reformerja je validiran, pri čemer se rezultati simulacije dobro ujemajo z referenčnimi podatki. Izdelan model reformerja je uporabljen v študiji delovanja 1D modela sistema SOFC, pri čemer je reformer integriran v prenosniku toplote na vstopu v anodno stran sklada SOFC. Izdelan model sistema SOFC na gorivo etanol deluje stabilno ter prikazuje realno stanje obnašanja sistema. Uporabnost računalniških simulacij v procesu razvoja tehnologije kot je SOFC, je dodatno prikazana s primerjavo delovanja sistema SOFC na gorivo metan, etanol, metanol in amonijak, pri čemer je možno izbirati ukrepe optimizacije in možne korake izboljšanja delovanja sistemov. The master's thesis presents the use of hydrogen energy as a fuel for solid oxide fuel cell (SOFC) system technology. The process of hydrogen production by ethanol steam reforming within a reformer device is investigated. The implementation of chemical reactions is carried out using the AVL User Coding Interface (AUCI). The developed kinetic model is applied in the catalytic converter component for a 1D model of the reformer within the AVL CRUISE™ M software package. A simulation of the reformer model is performed, where the effects of temperature and the steam-to-ethanol ratio (S/E ratio) on the steam reforming process of ethanol are observed. The results show that the highest hydrogen concentration is produced at elevated temperatures and lower S/E ratios, which represent the most favorable thermodynamic conditions for the steam reforming of ethanol. The reformer model is validated, with the simulation results showing good agreement with reference data. The developed reformer model is then used in a study of the performance of a 1D SOFC system model, where the reformer is integrated into a heat exchanger at the inlet of the anode side of the SOFC stack. The developed ethanol-fueled SOFC system model operates stably and accurately reflects the real behavior of the system. The usefulness of computer simulations in the development process of technologies such as SOFC is further demonstrated by comparing the operation of the SOFC system using methane, ethanol, methanol, and ammonia as fuels, enabling the identification of optimization measures and potential steps for performance improvement. vodikovo gospodarstvo parno reformiranje etanola sistem trdno oksidnih gorivnih celic modeliranje računalniška simulacija hydrogen economy ethanol steam reforming solid oxide fuel cell system modeling computer simulation true true false [N. Brunec] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-05-12 19:12:59 2025-05-27 14:00:57 2025-06-18 03:08:46 0000-00-00 00:00:00 2025 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XIII, 53 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.94:662.769.2(043.2) 239609859 MAG_Brunec_Nezka_2025.pdf MAG_Brunec_Nezka_2025.pdf 1 782C8F1F61DF69A46F27C16846EB86CA 78df0f4cc819d82829618a28ddea9a2f5d114e4e52a12d51a055aac0c4db2ed1 288e4300-3033-11f0-8c11-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=190963 Fakulteta za strojništvo 0 0 0