Thermal Performance of Phase Change Copper Heat Exchangers Produced with the Laser Technology – Development of Model Modification
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10260419" target="_blank" >RIV/61989100:27230/25:10260419 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989100:27730/25:10260419
Výsledek na webu
<a href="https://ros.edu.pl/index.php?id=1635&lang=en" target="_blank" >https://ros.edu.pl/index.php?id=1635&lang=en</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.54740/ros.2025.050" target="_blank" >10.54740/ros.2025.050</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Thermal Performance of Phase Change Copper Heat Exchangers Produced with the Laser Technology – Development of Model Modification
Popis výsledku v původním jazyce
The boiling phenomenon that occurs on surfaces modified with the laser beam is very intense. The enhancement of heat flux in comparison to the unmodified surface is quite commonly reported in literature. However, a significant problem is the correct determination of heat flux dissipated from the laser-treated surfaces during pool boiling. This paper focuses on developing a modification of a model created by Rannenberg and Beer. It was initially proposed for a different type of microstructural coating, namely, wire meshes. The modified version of the model is used for predicting the heat flux transferred from laser-processed copper samples tested under boiling conditions of distilled water and ethyl alcohol. The modified correlation proved to provide reasonable accuracy in the analysed range of superheat values. The comparison of the experimental results and the results of the calculations made according to the modified model showed that the experimental points align along the qcalc = qexp line of ideal matching. Moreover, a great majority of the experimental points fall within the ±100% error band. © 2025. Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY-SA).
Název v anglickém jazyce
Thermal Performance of Phase Change Copper Heat Exchangers Produced with the Laser Technology – Development of Model Modification
Popis výsledku anglicky
The boiling phenomenon that occurs on surfaces modified with the laser beam is very intense. The enhancement of heat flux in comparison to the unmodified surface is quite commonly reported in literature. However, a significant problem is the correct determination of heat flux dissipated from the laser-treated surfaces during pool boiling. This paper focuses on developing a modification of a model created by Rannenberg and Beer. It was initially proposed for a different type of microstructural coating, namely, wire meshes. The modified version of the model is used for predicting the heat flux transferred from laser-processed copper samples tested under boiling conditions of distilled water and ethyl alcohol. The modified correlation proved to provide reasonable accuracy in the analysed range of superheat values. The comparison of the experimental results and the results of the calculations made according to the modified model showed that the experimental points align along the qcalc = qexp line of ideal matching. Moreover, a great majority of the experimental points fall within the ±100% error band. © 2025. Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY-SA).
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20303 - Thermodynamics
Návaznosti výsledku
Projekt
—
Návaznosti
O - Projekt operacniho programu
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Rocznik Ochrony Środowiska
ISSN
1506-218X
e-ISSN
—
Svazek periodika
27
Číslo periodika v rámci svazku
_
Stát vydavatele periodika
PL - Polská republika
Počet stran výsledku
7
Strana od-do
628-634
Kód UT WoS článku
001605904100002
EID výsledku v databázi Scopus
2-s2.0-105021433987