20.500.12556/RUL-153315 Termični model nizkotemperaturne gorivne celice s protonsko izmenjevalno membrano Thermal model of a low temperature proton exchange membrane fuel cell Tehnologija gorivnih celic s protonsko izmenjevalno membrano nenehno napreduje, zato smo danes priča izrazitemu razmahu modeliranja le teh. Navkljub raziskovalnim naporom večina razvitih sistemskih modelov ne upošteva spreminjanja temperature znotraj gorivne celice, čeprav vpliva na delovanje in učinkovitost celice. Z namenom pospešitve razvoja na tem področju je v delu razvit inovativen termalni model gorivne celice s protonsko izmenjevalno membrano. Model popisuje temperaturno porazdelitev v trdninah in plinih skozi celotno celico in obravnava termalni vpliv trdnin na pline in obratno. Omenjeni termalni model, ki je glavni prispevek naloge, smo nato sklopili s tranzientnim izotermnim elektrokemijskim 1D modelom. Na koncu smo sklopljen model verificirali, namesto temeljne ideje validacije pa smo se zaradi preseženega obsega magistrske naloge, osredotočili na verifikacijo kalibracijskih parametrov. Razviti model tako omogoča vpoglede v kompleksno medsebojno vzročno posledično verigo med temperaturo, elektrokemijskimi reakcijami in transportom mase znotraj celice, kar je ključnega pomena za razvoj in optimizacijo tehnologij gorivnih celic za širok spekter aplikacij. Proton exchange membrane fuel cell technology is constantly advancing, and today we are witnessing a dramatic increase in the modelling of these cells. Despite research efforts, most of the system models developed do not take into account the temperature variation inside the fuel cell, even though it affects the performance and efficiency of the cell. In order to accelerate developments in this field, an innovative thermal model of a fuel cell with a proton exchange membrane is developed in this thesis. The model describes the temperature distribution in solids and gases throughout the cell and addresses the thermal influence of solids on gases and vice versa. The above thermal model, which is the main contribution of the thesis, was then coupled to a 1D transient isothermal electrochemical model. Finally, the coupled model was verified, but instead of the basic idea of validation, we focused on the verification of the calibration parameters, due to the exceeding scope of the thesis. The developed model thus provides insights into the complex inter-causal chain between temperature, electrochemical reactions and mass transport within the cell, which is crucial for the development and optimisation of fuel cell technologies for a wide range of applications. gorivna celica s protonsko izmenjevalno membrano termalni tranzientni 1D model energijska enačba toplotni tokovi temperaturna porazdelitev elektrokemijski 1D model. proton exchange membrane fuel cell thermal transient 1D model energy equation heat fluxes temperature distribution electrochemical 1D model. true false false [A. Sušin] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-12-22 07:30:06 2023-12-22 07:30:14 2024-02-21 10:23:28 0000-00-00 00:00:00 2023 0 Ljubljana 0 XX, 71 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.352.6:536.5:004.952(043.2) 259882 186278659 32648.pdf 32648.pdf 1 C24F2D7B515F202F073884E102271731 839de0168f80070fc4ac898d175674997dd7fb127907656dc5ec695531f7e0df 90e8d546-a093-11ee-90ad-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179245 Fakulteta za strojništvo 0 0 0