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Ovrednotenje mikrokanalnih prenosnikov toplote z IR termografijo
ID Mohorič, Urša (Author), ID Može, Matic (Mentor) More about this mentor... This link opens in a new window, ID Golobič, Iztok (Comentor)

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Abstract
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.

Language:Slovenian
Keywords:prenosniki toplote, mikrokanalni prenosniki toplote, IR termografija, hlajenje, 3D tisk
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[U. Mohorič]
Year:2024
Number of pages:XX, 61 str.
PID:20.500.12556/RUL-158921 This link opens in a new window
UDC:621.565.93/.95:543.572.3(043.2)
COBISS.SI-ID:202699267 This link opens in a new window
Publication date in RUL:22.06.2024
Views:225
Downloads:70
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Secondary language

Language:English
Title:Analysis of microchannel heat exchangers with IR thermography
Abstract:
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.

Keywords:heat exchangers, microchannel heat exchangers, IR thermography, cooling, 3D printing

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