20.500.12556/RUL-171909 Določevanje masnega toka vodika, proizvedenega v laboratorijskem elektrolizerju Determination of hydrogen mass flow produced by a laboratory electrolyzer V času hitre rasti obnovljivih virov energije, shranjevanje presežkov proizvedene energije hitro pridobiva na pomenu. Ena izmed možnosti, kot nosilec energije, je tudi vodik, pridobljen z uporabo elektrolize vode. Vodik se nato shrani in se po potrebi pretvori nazaj v energijo z gorivnimi celicami ali, s toplotnimi stroji, ali pa se porabi v drugih sektorjih. Za boljše razumevanje procesa in potencialne izboljšave na laboratorijskih demonstratorjih izvajamo poskuse in meritve. V tej zaključni nalogi se osredotočimo na laboratorijski PEM elektrolizer in tlačno posodo, v katero shranjujemo proizveden vodik. Z meritvami spremembe tlaka in temperature smo določili masni tok vodika. Z merjenjem električnega toka in napetosti smo lahko izračunali še izkoristek elektrolizerja pri različnih tlačnih, temperaturnih in obremenitvenih pogojih ter količino nasičene vodne pare v tlačni posodi. Dobljene rezultate smo primerjali s strokovno literaturo. In the era of rapid growth of renewable energy sources, storing surplus energy is rapidly gaining importance. One of the options as energy carrier is also hydrogen obtained by using water electrolysis. The hydrogen is then stored and, if necessary, converted back into energy with fuel cells or thermal engines, or it is consumed in other sectors. To gain a deeper understanding of the process and to explore potential improvements, experiments and measurements are performed on laboratory demonstrators. In this thesis, focus is placed on the laboratory PEM electrolyzer and the pressure cylinder in which the produced hydrogen is stored. By measuring changes in pressure and temperature, the mass flow of hydrogen is determined. By measuring the electric current and voltage, we were able to calculate the efficiency of the electrolyzer at different pressure, temperature and load conditions, as well as the amount of saturated water vapor in the pressure cylinder. Obtained results were compared with the scientific literature. vodikove tehnologije elektrolizer s protonsko izmenjevalno membrano hranilnik vodika masni tok vodika izkoristek vlažnost hydrogen technologies proton exchange membrane electrolyzer hydrogen storage tank hydrogen mass flow efficiency humidity true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-04 08:32:00 2025-09-04 08:32:02 2025-09-25 03:52:27 0000-00-00 00:00:00 2025 0 0 XI, 33 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.352.6:544.642:546.11(043.2) 275374 248270851 43502.pdf 43502.pdf 1 EFC06972F3933A863C4DF52FCAFF78CB 3ff2697c40771fc2d11ad9883185c2f2cf4f31e499ec4e690353f5c76315a830 b8c832b3-8958-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215475 Fakulteta za strojništvo 0 0 0