Search
Abstract
The results of free convection heat transfer investigation from a horizontal, uniformly heated tube immersed in a nanofluid are presented. Experiments were performed with five base fluids, i.e., ethylene glycol (EG), distilled water (W) and the mixtures of EG and water with the ratios of 60/40, 50/50, 40/60 by volume, so the Rayleigh (Ra) number range was 3 104 Ra 1.3 106 and the Prandtl (Pr) number varied from 4.4 to 176. Alumina (Al2O3) nanoparticles were tested at the mass concentrations of 0.01, 0.1 and 1%. Enhancement as well as deterioration of heat transfer performance compared to the base fluids were detected depending on the composition of the nanofluid. Based on the experimental results obtained, a correlation equation that describes the dependence of the average Nusselt (Nu) number on the Ra number, Pr number and concentration of nanoparticles is proposed.
Citations
-
4
CrossRef
-
0
Web of Science
-
5
Scopus
Authors (3)
-
Dorota Sawicka mgr
-
Slawomir Smolen
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ENERGIES
no. 14,
ISSN: 1996-1073 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Sawicka D., Cieśliński J., Smolen S.: Experimental Investigation of Free Convection Heat Transfer from Horizontal Cylinder to Nanofluids// ENERGIES -Vol. 14,iss. 10 (2021), s.2909-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/en14102909
- Verified by:
- Gdańsk University of Technology
seen 110 times
Recommended for you
Effect of Temperature and Nanoparticle Concentration on Free Convective Heat Transfer of Nanofluids
- J. Cieśliński,
- S. Smoleń,
- D. Sawicka