sh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Early Onset of Nucleate Boiling on Gas-covered Biphilic Surfaces
Kyushu University, Fukuoka, Japan.
Kyushu University, Fukuoka, Japan.
Kyushu University, Fukuoka, Japan.
KTH.
Show others and affiliations
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 2036Article in journal (Refereed) Published
Abstract [en]

For phase-change cooling schemes for electronics, quick activation of nucleate boiling helps safeguard the electronics components from thermal shocks associated with undesired surface superheating at boiling incipience, which is of great importance to the long-term system stability and reliability. Previous experimental studies show that bubble nucleation can occur surprisingly early on mixed-wettability surfaces. In this paper, we report unambiguous evidence that such unusual bubble generation at extremely low temperatures-even below the boiling point-is induced by a significant presence of incondensable gas retained by the hydrophobic surface, which exhibits exceptional stability even surviving extensive boiling deaeration. By means of high-speed imaging, it is revealed that the consequently gassy boiling leads to unique bubble behaviour that stands in sharp contrast with that of pure vapour bubbles. Such findings agree qualitatively well with numerical simulations based on a diffuse-interface method. Moreover, the simulations further demonstrate strong thermocapillary flows accompanying growing bubbles with considerable gas contents, which is associated with heat transfer enhancement on the biphilic surface in the low-superheat region.

Place, publisher, year, edition, pages
2017. Vol. 7, 2036
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:sh:diva-32995DOI: 10.1038/s41598-017-02163-8ISI: 000401511100043PubMedID: 28515431OAI: oai:DiVA.org:sh-32995DiVA: diva2:1117992
Available from: 2017-06-29 Created: 2017-06-29 Last updated: 2017-07-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedPMC Full text

Authority records BETA

Amberg, Gustav

Search in DiVA

By author/editor
Amberg, Gustav
In the same journal
Scientific Reports
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 63 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf