LAPSE:2023.32362
Published Article
LAPSE:2023.32362
Experimental Investigation of Free Convection Heat Transfer from Horizontal Cylinder to Nanofluids
April 20, 2023
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.
Record ID
Keywords
correlation equation, free convection, horizontal cylinder, nanofluids
Subject
Suggested Citation
Sawicka D, Cieśliński JT, Smolen S. Experimental Investigation of Free Convection Heat Transfer from Horizontal Cylinder to Nanofluids. (2023). LAPSE:2023.32362
Author Affiliations
Sawicka D: Faculty of Nature and Engineering, J.R. Mayer−Institute for Energy Engineering, City University of Applied Sciences Bremen, Neustadtswall 30, 28199 Bremen, Germany
Cieśliński JT: Faculty of Mechanical and Ship Technology, Institute of Energy, Gdańsk University of Technology, Narutowicza 11/12, 80233 Gdansk, Poland [ORCID]
Smolen S: Faculty of Nature and Engineering, J.R. Mayer−Institute for Energy Engineering, City University of Applied Sciences Bremen, Neustadtswall 30, 28199 Bremen, Germany [ORCID]
Cieśliński JT: Faculty of Mechanical and Ship Technology, Institute of Energy, Gdańsk University of Technology, Narutowicza 11/12, 80233 Gdansk, Poland [ORCID]
Smolen S: Faculty of Nature and Engineering, J.R. Mayer−Institute for Energy Engineering, City University of Applied Sciences Bremen, Neustadtswall 30, 28199 Bremen, Germany [ORCID]
Journal Name
Energies
Volume
14
Issue
10
First Page
2909
Year
2021
Publication Date
2021-05-18
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en14102909, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.32362
This Record
External Link
doi:10.3390/en14102909
Publisher Version
Download
Meta
Record Statistics
Record Views
56
Version History
[v1] (Original Submission)
Apr 20, 2023
Verified by curator on
Apr 20, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.32362
Original Submitter
Auto Uploader for LAPSE
Links to Related Works