On the proper interpretation of nanofluid convective heat transfer
(2018) 16th International Heat Transfer Conference, IHTC 2018 In International Heat Transfer Conference p.2855-2862- Abstract
Technological developments of the last decades allow the production and the dispersion of particles of sizes ranging between 10 and 100 nm in liquids. In a large number of recent studies the resulting nanofluids have been reported to display anomalously high increase in convective heat transfer. The present study compiles experiments from five independent research teams investigating convective heat transfer in nanofluid flow in pipes (laminar and turbulent), pipe with inserted twisted tape, annular counter flow heat exchanger, and coil and plate heat exchangers. The results of all these experiments unequivocally confirm that Newtonian nanofluid flow can be consistently characterized by employing Nusselt number correlations obtained for... (More)
Technological developments of the last decades allow the production and the dispersion of particles of sizes ranging between 10 and 100 nm in liquids. In a large number of recent studies the resulting nanofluids have been reported to display anomalously high increase in convective heat transfer. The present study compiles experiments from five independent research teams investigating convective heat transfer in nanofluid flow in pipes (laminar and turbulent), pipe with inserted twisted tape, annular counter flow heat exchanger, and coil and plate heat exchangers. The results of all these experiments unequivocally confirm that Newtonian nanofluid flow can be consistently characterized by employing Nusselt number correlations obtained for single-phase heat transfer liquids such as water when the correct thermophysical properties of the nanofluid are utilized. It is also shown that the heat transfer enhancement provided by nanofluids equals the increase in the thermal conductivity of the nanofluid as compared to the base fluid independent of the nanoparticle concentration or material. These results demonstrate that no anomalous phenomena are involved in thermal conduction and forced convection based heat transfer of water based nanofluids. The experiments are theoretically supported by a fundamental similarity analysis of nanoparticle motion in nanofluid flow.
(Less)
- author
- Buschmann, M. H. ; Azizian, R. ; Kempe, T. ; Juliá, J. E. ; Martínez-Cuenca, R. ; Sundén, B. LU ; Wu, Z. LU ; Seppälä, A. and Ala-Nissila, T.
- organization
- publishing date
- 2018
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Conduction, Nanofluids, Thermophysical properties
- host publication
- Proceeding: International Heat Transfer Conference 16
- series title
- International Heat Transfer Conference
- pages
- 8 pages
- conference name
- 16th International Heat Transfer Conference, IHTC 2018
- conference location
- Beijing, China
- conference dates
- 2018-08-10 - 2018-08-15
- external identifiers
-
- scopus:85068350861
- ISSN
- 2377-424X
- DOI
- 10.1615/IHTC16.cov.022834
- language
- English
- LU publication?
- yes
- id
- 0226ee74-3466-46f1-8aa2-166b3262621f
- date added to LUP
- 2019-07-11 14:41:33
- date last changed
- 2023-09-09 11:10:36
@inproceedings{0226ee74-3466-46f1-8aa2-166b3262621f,
abstract = {{<p>Technological developments of the last decades allow the production and the dispersion of particles of sizes ranging between 10 and 100 nm in liquids. In a large number of recent studies the resulting nanofluids have been reported to display anomalously high increase in convective heat transfer. The present study compiles experiments from five independent research teams investigating convective heat transfer in nanofluid flow in pipes (laminar and turbulent), pipe with inserted twisted tape, annular counter flow heat exchanger, and coil and plate heat exchangers. The results of all these experiments unequivocally confirm that Newtonian nanofluid flow can be consistently characterized by employing Nusselt number correlations obtained for single-phase heat transfer liquids such as water when the correct thermophysical properties of the nanofluid are utilized. It is also shown that the heat transfer enhancement provided by nanofluids equals the increase in the thermal conductivity of the nanofluid as compared to the base fluid independent of the nanoparticle concentration or material. These results demonstrate that no anomalous phenomena are involved in thermal conduction and forced convection based heat transfer of water based nanofluids. The experiments are theoretically supported by a fundamental similarity analysis of nanoparticle motion in nanofluid flow.</p>}},
author = {{Buschmann, M. H. and Azizian, R. and Kempe, T. and Juliá, J. E. and Martínez-Cuenca, R. and Sundén, B. and Wu, Z. and Seppälä, A. and Ala-Nissila, T.}},
booktitle = {{Proceeding: International Heat Transfer Conference 16}},
issn = {{2377-424X}},
keywords = {{Conduction; Nanofluids; Thermophysical properties}},
language = {{eng}},
pages = {{2855--2862}},
series = {{International Heat Transfer Conference}},
title = {{On the proper interpretation of nanofluid convective heat transfer}},
url = {{http://dx.doi.org/10.1615/IHTC16.cov.022834}},
doi = {{10.1615/IHTC16.cov.022834}},
year = {{2018}},
}