20.500.12556/RUL-171009 Zasnova merilne proge za opazovanje interakcije med aktivnima nukleacijskima mestoma pri vrenju Design of an experimental setup for observation of interaction between two active nucleation sites during boiling Za preučevanje interakcije aktivnih nukleacijskih mest pri mehurčkastem vrenju smo razvili merilno progo, ki je temeljila na uporabi optične pincete, invertiranega mikroskopa in hitrotekoče kamere. Kot delovno tekočino smo uporabili vodo, FC-72 in Thermasolv. Interakcijo smo opazovali v kapljici sobne temperature in v grelni posodici, kjer smo lahko dosegli nasičeno stanje kapljevine. Obravnavali smo vplive parametrov optične pincete na velikost in frekvenco ustvarjenih parnih mehurčkov pri podhlajenem in nasičenem vrenju. Z laserskim izvorom optične pincete smo zlati nanos greli na enem, dveh ali osmih območjih. Najvišjo frekvenco nastalih parnih mehurčkov smo dosegli pri vodi. To study the interaction of two active nucleation sites during nucleate boiling, an experimental setup was developed based on the use of optical tweezers, an inverted microscope and a high-speed camera. Water, FC-72 and Thermasolv were used as the working fluids. The interaction was observed in a droplet at ambient temperature and in a heating chamber, where the liquid's saturation state could be reached. The effects of optical tweezers’ parameters on the size and frequency of vapor bubbles were analyzed for subcooled and saturated boiling conditions. The laser source of optical tweezers heated the gold deposit in one, two, or eight regions. The highest nucleation frequency was achieved with water. nukleacijska mesta parni mehurčki vrenje optične pincete laserji hitrotekoče kamere nucleation sites vapor bubbles boiling optical tweezers lasers high-speed cameras true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-07-27 07:30:06 2025-07-27 07:30:12 2025-08-04 09:58:37 0000-00-00 00:00:00 2025 0 0 XI, 30 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.7.08:544.015.2:66.046.7(043.2) 272564 244701699 39601.pdf 39601.pdf 1 EA1365345EBD9C2923BB13E8A7937A1E 24e63a21bcd94df654bf2cb12bb7b33d37762c1efac84468d4322a381e30bb16 bc7e7a34-6aaa-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=213332 Fakulteta za strojništvo 0 0 0