Logo des Repositoriums
Zur Startseite
  • English
  • Deutsch
Anmelden
  1. Startseite
  2. SuUB
  3. Forschungsdokumente
  4. Statistical Analysis of Thermal Conductivity Experimentally Measured in Water-Based Nanofluids
 
Zitierlink DOI
10.26092/elib/2626
Verlagslink DOI
10.1098/rspa.2021.0222

Statistical Analysis of Thermal Conductivity Experimentally Measured in Water-Based Nanofluids

Veröffentlichungsdatum
2021-06-16
Autoren
Tielke, Julia  
Maas, M.  
Castillo, M.  
Rezwan, Kurosch  
Avila, M.  
Zusammenfassung
Nanofluids are suspensions of nanoparticles in a base heat-transfer liquid.
They have been widely investigated to boost heat transfer since they were
proposed in the 1990's. We present a statistical correlation analysis of
experimentally measured thermal conductivity of water-based nanofluids
available in the literature. The influences of particle concentration, particle
size, temperature and surfactants are investigated. For specific materials
(alumina, titania, copper oxide, copper, silica and silicon carbide), separate
analyses are performed. The conductivity increases with the concentration in
qualitative agreement with Maxwell's theory of homogeneous media. The
conductivity also increases with the temperature (in addition to the
improvement due to the increased conductivity with water). Surprisingly, only
silica nanofluids exhibit a statistically significant effect of particle size,
whereby smaller particles lead to faster heat transfer. Overall, the large
scatter in the experimental data prevents a compelling, unambiguous assessment
of these effects. Taken together, the results of our analysis suggest that more
comprehensive experimental characterizations of nanofluids are necessary to
estimate their practical potential.
Schlagwörter
Soft Condensed Matter

; 

Materials Science

; 

Data Analysis

; 

Statistics and Probability

; 

Fluid Dynamics

; 

Mimenima
Institution
Universität Bremen  
Fachbereich
Zentrale Wissenschaftliche Einrichtungen und Kooperationen  
Institute
MAPEX Center for Materials and Processes  
Zentrum für angewandte Raumfahrttechnologie und Mikrogravitation (ZARM)  
Dokumenttyp
Artikel/Aufsatz
Zeitschrift/Sammelwerk
Proceedings of the Royal Society A  
Band
477
Heft
2250
Zweitveröffentlichung
Ja
Dokumentversion
Postprint
Lizenz
https://creativecommons.org/licenses/by/4.0/
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

TIELKE - Statistical Analysis of Thermal Conductivity_Deckblatt_pdfa1.pdf

Size

366.43 KB

Format

Adobe PDF

Checksum

(MD5):a54a3981724abc1ad2056b52d4c88be0

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Datenschutzbestimmungen
  • Endnutzervereinbarung
  • Feedback schicken