20.500.12556/RUL-158921 Ovrednotenje mikrokanalnih prenosnikov toplote z IR termografijo Analysis of microchannel heat exchangers with IR thermography Vsakodnevno se srečujemo s težavo učinkovitega hlajenja naprav, saj lahko pregrevanje sistemov vodi do nezaželenih okvar in manj učinkovitega delovanja. Da bi naslovili ta problem, smo s pomočjo infrardeče termografije ovrednotili temperaturna polja na tanki uporovno greti kovinski površini, pri čemer je drugo stran te površine ohlajal mikrokanalni prenosnik toplote. Eksperimentalne meritve smo izvajali pri različnih pretokih medija, delovali smo z različno električno močjo na kovinsko površino in spreminjali število mikrokanalov na prenosniku toplote. Prikazali smo temperaturna polja in grafe poteka temperatur po dolžini mikrokanala, ter prečno skozi širino prenosnika. Na podlagi ugotovitev iz rezultatov smo v nekaterih primerih uspeli zagotoviti učinkovito hlajenje večinskega dela tanke kovinske površine. We encounter the challenge of effectively cooling devices on a daily basis, as system overheating can lead to undesirable malfunctions and less efficient operation. To address this issue, we used infrared thermography to evaluate the temperature fields on a thin resistively heated metal surface, with the other side of this surface being cooled by a microchannel heat exchanger. We conducted experimental measurements at different fluid flow rates, applied different electrical power to the metal surface, and adjusted the number of microchannels in the heat exchanger. We presented temperature fields and graphs of temperature profiles along the length of the microchannel and across the width of the heat exchanger. Based on the findings from the results, we were able to achieve effective cooling of the majority of the thin metal surface in some cases. prenosniki toplote mikrokanalni prenosniki toplote IR termografija hlajenje 3D tisk heat exchangers microchannel heat exchangers IR thermography cooling 3D printing true false false [U. Mohorič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-06-22 08:30:57 2024-06-22 08:30:59 2024-07-25 08:36:43 0000-00-00 00:00:00 2024 0 Ljubljana 0 XX, 61 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.565.93/.95:543.572.3(043.2) 260608 202699267 33392.pdf 33392.pdf 1 F0074438D5D62F7938852D43001947DC cbaa297a59fb1db0a5c57405399eb146f500e948ec5736b52ae686cb7957e871 fd4b2040-3060-11ef-b386-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186652 Fakulteta za strojništvo 0 0 0