20.500.12556/RUL-164436 Uvedba naprednih karakterizacijskih tehnik v merilno progo za testiranje PEM gorivnih celic Implementation of advanced characterization techniques into a PEM fuel cell test bench V današnjem času smo priča pospešenemu razvoju vodikovih tehnologij, ki omogočajo shranjevanje viškov energije iz obnovljivih virov v vodik. Razvoj je intenzivno usmerjen v tehnologijo gorivnih celic, ki temelji na protonsko prepustni membrani (PEM). Ta tehnologija je trenutno najpogosteje uporabljena za raznovrstne aplikacije. V sklopu magistrskega dela smo eksperimentalno raziskali vplive različnih parametrov na delovanje PEM gorivne celice. V obstoječo merilno progo smo vpeljali nove, napredne karakterizacijske tehnike. Preizkuševališče smo tako nadgradili z integracijo novih metod, kar bo omogočalo podrobnejše raziskave vpliva veličin na delovanje gorivne celice. Izdelali smo načrt in shemo postavitve preizkuševališča ter definirali nove merilne metode za testiranje in karakterizacijo gorivnih celic. V obstoječi merilni sistem smo vpeljali tehniko merilne sonde za zaznavanje površinske porazdelitve gostote električnega toka na gorivni celici ter tehniko elektrokemične impedančne spektroskopije. Izvedene so bile ''in-situ'' metode s sočasno uporabo različnih karakterizacijskih tehnik. Na podlagi pridobljenih rezultatov smo analizirali delovanje gorivne celice ter ugotavljali, katera metoda je na posameznem segmentu preučevanja najbolj ustrezna in katera bi nam glede na predmet preučevanja dala najbolj ustrezne rezultate. In recent times, we have witnessed accelerated development of hydrogen technologies that enable the storage of excess renewable energy in hydrogen. The development is intensely focused on proton exchange membrane (PEM) fuel cell technology. This technology is currently the most used for various applications. As part of the master’s thesis, we experimentally investigated the effects on the performance of PEM fuel cells. We introduced new, advanced characterization techniques into the existing system. We upgraded the testing facility by integrating new methods, which will allow for more detailed research on the impact of variables on fuel cell performance. We designed and schematically laid out the testing facility and defined new measurement methods for testing and characterizing fuel cells. We introduced a probe technique for detecting the surface distribution of current density on the fuel cell and the technique of electrochemical impedance spectroscopy into the existing measurement system. “In-situ” methods were performed with the simultaneous use of various characterization techniques. Based on the obtained results, we will analyse the performance of the fuel cell and determine which method is most suitable for each segment of the study and which would provide the most appropriate results based on the subject of the study. vodikove tehnologije PEM gorivne celice karakterizacija polarizacijska krivulja elektrokemična impedančna spektroskopija površinsko merjenje gostote toka in temperature hydrogen technologies PEM fuel cells characterization polarization curve electrochemical impedance spectroscopy surface current and temperature measurement true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2024-10-25 08:31:30 2024-10-25 08:31:35 2024-12-12 14:01:01 0000-00-00 00:00:00 2024 0 0 XX, 84 str. 2024 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 502.171:531.62(043.2) 267012 218833155 38287.pdf 38287.pdf 1 E4E621E066DC9656DEB78142634F4979 704d290161012effde8753ab3e55d45ee5aa1314ae5bc2d850cf200d90f9e2a4 7b50b843-929a-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=194807 Fakulteta za strojništvo 0 0 0