magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Aljaž Sušin (Author), Tomaž Katrašnik (Mentor)

Abstract

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.

Keywords

magistrske naloge;gorivna celica s protonsko izmenjevalno membrano;termalni tranzientni 1D model;energijska enačba;toplotni tokovi;temperaturna porazdelitev;elektrokemijski 1D model;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [A. Sušin]
UDC: 621.352.6:536.5:004.952(043.2)
COBISS: 186278659 Link will open in a new window
Views: 137
Downloads: 16
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Other data

Secondary language: English
Secondary title: Thermal model of a low temperature proton exchange membrane fuel cell
Secondary abstract: 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.
Secondary keywords: master thesis;proton exchange membrane fuel cell;thermal transient 1D model;energy equation;heat fluxes;temperature distribution;electrochemical 1D model;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XX, 71 str.
ID: 21923930