Pressure drop of TiO2 nanofluid in circular pipes

Tun Ping Teng; Yi Hsuan Hung; Ching Song Jwo; Chien Chih Chen; Lung Yue Jeng

doi:10.1016/j.partic.2011.05.001

Pressure drop of TiO₂ nanofluid in circular pipes

Tun Ping Teng^*, Yi Hsuan Hung, Ching Song Jwo, Chien Chih Chen, Lung Yue Jeng

^*Corresponding author for this work

Undergraduate Program of Vehicle and Energy Engineering

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

This paper discusses the pressure drop in circular pipes of TiO ₂/water nanofluid for both laminar and turbulent flows at different temperatures and TiO₂ weight fractions. This study shows that TiO₂/water nanofluid causes enhancement, but temperature rise reduces pressure drop. The proportional increase in pressure drop for turbulent flow is lower than that for laminar flow. The traditional equation for pressure drop fails to accurately estimate the pressure drop for laminar and turbulent flows. Accordingly, this study developed new empirical equations for the friction factor for both laminar and turbulent flows, and the maximum deviations between calculated and experimental results were reduced to within the ranges of -6.17% to 3.55% and -3.08% to 3.81%, respectively, that is, for TiO₂/water nanofluid, the correlations apply better to turbulent than to laminar flow.

Original language	English
Pages (from-to)	486-491
Number of pages	6
Journal	Particuology
Volume	9
Issue number	5
DOIs	https://doi.org/10.1016/j.partic.2011.05.001
Publication status	Published - 2011 Oct

Keywords

Laminar flow
Nanofluid
Titania (TiO)
Turbulent flow

ASJC Scopus subject areas

General Chemical Engineering
General Materials Science

Access to Document

10.1016/j.partic.2011.05.001

Cite this

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title = "Pressure drop of TiO2 nanofluid in circular pipes",

abstract = "This paper discusses the pressure drop in circular pipes of TiO 2/water nanofluid for both laminar and turbulent flows at different temperatures and TiO2 weight fractions. This study shows that TiO2/water nanofluid causes enhancement, but temperature rise reduces pressure drop. The proportional increase in pressure drop for turbulent flow is lower than that for laminar flow. The traditional equation for pressure drop fails to accurately estimate the pressure drop for laminar and turbulent flows. Accordingly, this study developed new empirical equations for the friction factor for both laminar and turbulent flows, and the maximum deviations between calculated and experimental results were reduced to within the ranges of -6.17% to 3.55% and -3.08% to 3.81%, respectively, that is, for TiO2/water nanofluid, the correlations apply better to turbulent than to laminar flow.",

keywords = "Laminar flow, Nanofluid, Titania (TiO), Turbulent flow",

author = "Teng, {Tun Ping} and Hung, {Yi Hsuan} and Jwo, {Ching Song} and Chen, {Chien Chih} and Jeng, {Lung Yue}",

note = "Funding Information: The authors would like to thank National Science Council of the Republic of China, Taiwan , for financial support under Contract Nos. NSC 98-2221-E-003-018 and 99-2221-E-003-008.",

year = "2011",

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T1 - Pressure drop of TiO2 nanofluid in circular pipes

AU - Teng, Tun Ping

AU - Hung, Yi Hsuan

AU - Jwo, Ching Song

AU - Chen, Chien Chih

AU - Jeng, Lung Yue

N1 - Funding Information: The authors would like to thank National Science Council of the Republic of China, Taiwan , for financial support under Contract Nos. NSC 98-2221-E-003-018 and 99-2221-E-003-008.

PY - 2011/10

Y1 - 2011/10

N2 - This paper discusses the pressure drop in circular pipes of TiO 2/water nanofluid for both laminar and turbulent flows at different temperatures and TiO2 weight fractions. This study shows that TiO2/water nanofluid causes enhancement, but temperature rise reduces pressure drop. The proportional increase in pressure drop for turbulent flow is lower than that for laminar flow. The traditional equation for pressure drop fails to accurately estimate the pressure drop for laminar and turbulent flows. Accordingly, this study developed new empirical equations for the friction factor for both laminar and turbulent flows, and the maximum deviations between calculated and experimental results were reduced to within the ranges of -6.17% to 3.55% and -3.08% to 3.81%, respectively, that is, for TiO2/water nanofluid, the correlations apply better to turbulent than to laminar flow.

AB - This paper discusses the pressure drop in circular pipes of TiO 2/water nanofluid for both laminar and turbulent flows at different temperatures and TiO2 weight fractions. This study shows that TiO2/water nanofluid causes enhancement, but temperature rise reduces pressure drop. The proportional increase in pressure drop for turbulent flow is lower than that for laminar flow. The traditional equation for pressure drop fails to accurately estimate the pressure drop for laminar and turbulent flows. Accordingly, this study developed new empirical equations for the friction factor for both laminar and turbulent flows, and the maximum deviations between calculated and experimental results were reduced to within the ranges of -6.17% to 3.55% and -3.08% to 3.81%, respectively, that is, for TiO2/water nanofluid, the correlations apply better to turbulent than to laminar flow.

KW - Laminar flow

KW - Nanofluid

KW - Titania (TiO)

KW - Turbulent flow

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