20.500.12556/RUL-172009 Mikrofluidni generator kapljic za izdelavo ledenega abraziva Microfluidic droplet generator for the production of ice abrasive V nalogi raziskujemo povezavo med ključnimi parametri mikrofluidnega dozirnika in velikostjo generiranih kapljic, iz katerih nastanejo ledena zrna želene velikosti (300–600 µm) za uporabo v tehnologiji LAVC (ledeni abrazivni vodni curek). Želimo doseči stabilno ustvarjanje kapljic ustreznih velikosti s čim manjšim raztrosom. Uporabili smo mikrofluidni dozirnik Festo. Z robustnim načrtovanjem eksperimentov po Taguchijevi metodi smo sistematično analizirali vpliv večih parametrov ustvarjanja kapljic na njihovo velikost, kar posledično vpliva na velikost ledenih zrn. Potrditveni preizkus je pokazal povprečno velikost ledenih zrn 450 µm in 63 % delež ustreznih kapljic, pri čemer je raztros med ponovitvami v območju 200 µm do 650 µm. Rezultati potrjujejo, da mikrofluidni pristop omogoča učinkovito izdelavo ledenih zrn, skladnih z zahtevami tehnologije LAVC. In this study, we investigate the relationship between key parameters of a microfluidic dispenser and the size of the generated droplets, from which ice grains of the desired size (300–600 µm) are formed for application in Ice Abrasive Water Jet (IAWJ) technology. The objective was to achieve stable droplet generation of suitable size with minimal scatter. A Festo microfluidic dispenser was employed. Using robust experimental design based on Taguchi’s method, the influence of multiple parameters on droplet formation and size was systematically analyzed, which consequently affects the size of the ice grains. The confirmation test showed an average grain size of 450 µm and a 63% share of suitable droplets, with scatter between repetitions ranging from 200 to 650 µm. The results confirm that the microfluidic approach enables efficient production of ice grains consistent with the requirements of IAWJ technology. generator ledenih zrn mikrofluidika ledeni abrazivni vodni curek (LAVC) mikrodoziranje kapljic robustno načrtovanje eksperimentov metoda Taguchi velikost in oblika kapljic ice grain generator microfluidics liquid abrasive water jet (LAVC) microdroplet generation robust experimental design Taguchi method droplet size and shape true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-05 08:30:39 2025-09-05 08:30:42 2025-09-30 04:01:18 0000-00-00 00:00:00 2025 0 0 XII, 24 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.525:621.9:519.6(043.2) 275496 249121283 43491.pdf 43491.pdf 1 CFA3E80334712D180490CC39D9141C3C cd70b0af9d50080371c7252f2e762441511c541179d5dca08ce84bf2159eef47 b5526fd5-8a21-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215727 Fakulteta za strojništvo 0 0 0