20.500.12556/RUL-158664 Multi-scale boiling heat transfer investigation on micro-thin aluminum heaters Nucleate boiling is a highly efficient heat transfer mode distinguished by the liquidvapor phase change, which occurs through the formation, growth, and detachment of vapor bubbles from a heated surface. Its crucial role in various industrial applications, such as nuclear power plant operation and effective heat management in small electronic devices, has driven significant research efforts. However, despite extensive research dedicated to boiling investigations, there are still substantial knowledge gaps that hinder our ability to accurately predict heat removal rates. These knowledge gaps arise from the complex nature of small-scale boiling phenomena, which are further complicated by their strong dependence on operating conditions and the interactions between walls and fluids. In an effort to address some of these gaps, we conducted multi-scale investigations during pool boiling of de-ionized water on microthin aluminum heaters. We captured bubble dynamics through multiple synchronized diagnostic sources, including high-speed backlit imaging to track bubble growth, synchronized high-speed infrared thermometry to capture the corresponding thermal footprint on the boiling surface, and in-house developed fast-response micro-thermocouples to measure temperature at multiple locations within the fluid. Our study reveals peculiar aspects of heat transfer mechanisms occurring at single bubble level (low heat fluxes) and in fully developed nucleate boiling regimes (high heat fluxes). pool boiling bubble dynamics thin metal heaters mehurčkasto vrenje dinamika mehurčkov tankostenski grelci true false true Angleški jezik Slovenski jezik Članek v reviji 2024-06-19 08:35:13 2024-06-19 08:35:16 2024-07-03 03:27:15 0000-00-00 00:00:00 2024 0 0 6 str. Vol. 2766, art. 012128 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532:544 1742-6596 10.1088/1742-6596/2766/1/012128 199313155 197654787 Bucci,_Zupancic,_Golobic-Multi-scale_boiling_heat_transfer_investigation_on_micro-thin_aluminum_heaters.pdf Bucci,_Zupancic,_Golobic-Multi-scale_boiling_heat_transfer_investigation_on_micro-thin_aluminum_heaters.pdf 1 94BAB43B42E8B3B5D6D29E26A3826101 c03f0819f5cf3593023a35f07bb026795db71f2510533ddb29aa8a71c00240e7 8626ffc1-2e06-11ef-aa1b-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186374 https://iopscience.iop.org/article/10.1088/1742-6596/2766/1/012128 1 18606d78-2e06-11ef-aa1b-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186373 Fakulteta za strojništvo 0 0 0