20.500.12556/DKUM-85759 Rekonstrukcija naprave za lebdeči sloj z namenom separacije mlevine hitrih antigenskih testov magistrsko delo Reconstruction of a fluid bed device for separating granular material from the grinding process of rapid antigen test Magistrsko delo obsega študij ter rekonstrukcijo naprave za lebdeči sloj z namenom ločevanja mlevine hitrih antigenskih testov. Z namenom karakterizacije mlevine so bile izvedene sledeče tehnike: sejalna analiza, rentgenska fluorescenčna spektrometrija, vrstična elektronska mikroskopija, energijsko disperzijska spektroskopija rentgenskih žarkov ter presevna elektronska mikroskopija. Zaključno delo zajema eksperimentalno testiranje poenostavljenega procesa separacije z zeolitnimi kroglicami in papirnatimi lističi, podkrepljeno z numeričnim modelom. Tokovne razmere obravnavanega problema so bile simulirane s pomočjo računalniške dinamike tekočin (RDT), obnašanje ter interakcije delcev pa z metodo diskretnih elementov (DEM). Ugotovljeno je bilo, da je proces ločevanja zeolitnih kroglic in papirnatih lističev učinkovit. Rezultati simulacije so pokazali ustrezno obnašanje delcev tekom procesa. Odstopanja rezultatov so razložena, predstavljene pa so tudi pomanjkljivosti ter možne izboljšave. Za opredelitev ustreznosti procesa ob uporabi dejanske mlevine hitrih antigenskih testov bi bilo potrebno nadaljnje raziskovalno delo. The Master's thesis includes the study and reconstruction of a fluid bed device with the purpose of separating the granular material from the grinding process of rapid antigen tests. With the purpose of characterization of grinded particles the following techniques were performed: sieve analysis, X-ray fluorescence spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and transmission electron microscopy. Thesis includes experimental testing of a simplified separation process with zeolite beads and paper slips, supported by a numerical model. The flow conditions of the considered problem were simulated using Computational Fluid Dynamics (CFD), discrete element method (DEM) was used to simulate the behavior and interactions of particles. The separation process of zeolite beads and paper slips was found to be efficient. The simulation results showed the appropriate behavior of the particles during the process. We explained the results deviations, we also presented the shortcomings and possible improvements. To define the adequacy of the process, while using actual ground material of rapid antigen tests, further research is required. hitri antigenski testi nanomateriali krožno gospodarstvo lebdeči sloj računalniška dinamika tekočin metoda diskretnih elementov rapid antigen tests nanomaterials circular economy fluid bed computational fluid dynamics discrete element method true true false [M. Jordan] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-09-10 23:18:26 2023-09-22 14:28:20 2023-10-07 03:28:01 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XIV, 81 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 [519.6:533.6.013.67]:621.928.6(043.2) 167317763 MAG_Jordan_Miha_2023.pdf MAG_Jordan_Miha_2023.pdf 1 2EA6EACD026F1917F99D7A29F3F45EA2 40a4f8b9a84c53a72cd04733537a7cb3a1f065e018dbe9b8fe7ceaed0aa8ab13 016e0ce5-586b-11ee-a4d2-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=172743 Fakulteta za strojništvo 0 0 0