Fischer, S. ; Slomski, E. M. ; Stephan, P. ; Oechsner, M. (2024)
Enhancement of nucleate boiling heat transfer by micro-structured chromium nitride surfaces.
In: Journal of Physics: Conference Series, 2012, 395 (1)
doi: 10.26083/tuprints-00020792
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
In the present work, the influence of micro-structured chromium nitride (CrN) surfaces on boiling heat transfer during nucleate boiling of FC-72 at saturation temperature was investigated. The CrN thin coatings of 4.5 μm thickness in average were deposited by Physical Vapor Deposition (PVD) as a combination of High Power Impulse Magnetron Sputtering (HiPIMS) and Direct Current Magnetron Sputtering (DCMS) on polished copper surfaces. Due to variation of the applied bias voltage to the substrates different sizes and orientations of the CrN crystals were realized. The typical dimensions of the hereby generated surface structures are in the order of a few hundred nm to a few μm. It was found that all employed micro-structured CrN surfaces yield an increase of the critical heat flux (CHF) compared to an uncoated reference surface. The maximum ratio of the CHF of a CrN structured surface to the CHF of the uncoated copper surface reached within this study was CHFmax/CHFref = 2.5.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Fischer, S. ; Slomski, E. M. ; Stephan, P. ; Oechsner, M. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Enhancement of nucleate boiling heat transfer by micro-structured chromium nitride surfaces |
| Sprache: | Englisch |
| Publikationsjahr: | 6 Februar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2012 |
| Ort der Erstveröffentlichung: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Conference Series |
| Jahrgang/Volume einer Zeitschrift: | 395 |
| (Heft-)Nummer: | 1 |
| Kollation: | 8 Seiten |
| DOI: | 10.26083/tuprints-00020792 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20792 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | In the present work, the influence of micro-structured chromium nitride (CrN) surfaces on boiling heat transfer during nucleate boiling of FC-72 at saturation temperature was investigated. The CrN thin coatings of 4.5 μm thickness in average were deposited by Physical Vapor Deposition (PVD) as a combination of High Power Impulse Magnetron Sputtering (HiPIMS) and Direct Current Magnetron Sputtering (DCMS) on polished copper surfaces. Due to variation of the applied bias voltage to the substrates different sizes and orientations of the CrN crystals were realized. The typical dimensions of the hereby generated surface structures are in the order of a few hundred nm to a few μm. It was found that all employed micro-structured CrN surfaces yield an increase of the critical heat flux (CHF) compared to an uncoated reference surface. The maximum ratio of the CHF of a CrN structured surface to the CHF of the uncoated copper surface reached within this study was CHFmax/CHFref = 2.5. |
| ID-Nummer: | Artikel-ID: 012128 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-207929 |
| Zusätzliche Informationen: | 6th European Thermal Sciences Conference (Eurotherm 2012) 4–7 September 2012, Poitiers, France |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet und Institut für Werkstoffkunde - Zentrum für Konstruktionswerkstoffe - Staatliche Materialprüfungsanstalt Darmstadt (IfW-MPA) 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) Exzellenzinitiative Exzellenzinitiative > Exzellenzcluster Exzellenzinitiative > Exzellenzcluster > Center of Smart Interfaces (CSI) |
| Hinterlegungsdatum: | 06 Feb 2024 10:32 |
| Letzte Änderung: | 07 Feb 2024 06:52 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Enhancement of nucleate boiling heat transfer by micro-structured chromium nitride surfaces. (deposited 06 Feb 2024 10:32) [Gegenwärtig angezeigt]
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