Research on pressure loss of alumina nanofluid flow in a pipe

Ching Song Jwo, Tun-Ping Teng, Dong Jin Wu, Ho Chang, Sih Li Chen

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This investigation involved the two-step method of adding Al 2 O 3 nanoparticles to water to form Al 2 O 3 /water nanofluid, as the working fluid in experiments. The nanofluid was practically applied to a commercial circular steel tube, and the workability of its practical application was evaluated. The experimental variables were the parameters weight fraction, flowing condition and the temperature associated with the pressure drop in the pipe. The experimental results demonstrate that Al 2 O 3 /water nanofluid increases the pressure drop, whereas an increase in temperature reduces the pressure drop. The proportional increase in the pressure drop was lower under turbulent flow conditions than under laminar flow conditions. The traditional predictive equation for pressure drop could not be used estimate the pressure drop under laminar flow conditions. Accordingly, this investigation develops a new empirical equation for the friction factor in laminar flow, which is more accurate than the traditional equation for laminar flow.

Original languageEnglish
Pages (from-to)511-517
Number of pages7
JournalJournal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Volume30
Issue number6
Publication statusPublished - 2009 Dec 1

Fingerprint

Pressure drop
Alumina
Pipe
Laminar flow
Water
Turbulent flow
Friction
Nanoparticles
Temperature
Fluids
Steel
Experiments

Keywords

  • Laminar flow
  • Nanofluid
  • Pressure drop
  • Turbulent flow

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "This investigation involved the two-step method of adding Al 2 O 3 nanoparticles to water to form Al 2 O 3 /water nanofluid, as the working fluid in experiments. The nanofluid was practically applied to a commercial circular steel tube, and the workability of its practical application was evaluated. The experimental variables were the parameters weight fraction, flowing condition and the temperature associated with the pressure drop in the pipe. The experimental results demonstrate that Al 2 O 3 /water nanofluid increases the pressure drop, whereas an increase in temperature reduces the pressure drop. The proportional increase in the pressure drop was lower under turbulent flow conditions than under laminar flow conditions. The traditional predictive equation for pressure drop could not be used estimate the pressure drop under laminar flow conditions. Accordingly, this investigation develops a new empirical equation for the friction factor in laminar flow, which is more accurate than the traditional equation for laminar flow.",
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TY - JOUR

T1 - Research on pressure loss of alumina nanofluid flow in a pipe

AU - Jwo, Ching Song

AU - Teng, Tun-Ping

AU - Wu, Dong Jin

AU - Chang, Ho

AU - Chen, Sih Li

PY - 2009/12/1

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N2 - This investigation involved the two-step method of adding Al 2 O 3 nanoparticles to water to form Al 2 O 3 /water nanofluid, as the working fluid in experiments. The nanofluid was practically applied to a commercial circular steel tube, and the workability of its practical application was evaluated. The experimental variables were the parameters weight fraction, flowing condition and the temperature associated with the pressure drop in the pipe. The experimental results demonstrate that Al 2 O 3 /water nanofluid increases the pressure drop, whereas an increase in temperature reduces the pressure drop. The proportional increase in the pressure drop was lower under turbulent flow conditions than under laminar flow conditions. The traditional predictive equation for pressure drop could not be used estimate the pressure drop under laminar flow conditions. Accordingly, this investigation develops a new empirical equation for the friction factor in laminar flow, which is more accurate than the traditional equation for laminar flow.

AB - This investigation involved the two-step method of adding Al 2 O 3 nanoparticles to water to form Al 2 O 3 /water nanofluid, as the working fluid in experiments. The nanofluid was practically applied to a commercial circular steel tube, and the workability of its practical application was evaluated. The experimental variables were the parameters weight fraction, flowing condition and the temperature associated with the pressure drop in the pipe. The experimental results demonstrate that Al 2 O 3 /water nanofluid increases the pressure drop, whereas an increase in temperature reduces the pressure drop. The proportional increase in the pressure drop was lower under turbulent flow conditions than under laminar flow conditions. The traditional predictive equation for pressure drop could not be used estimate the pressure drop under laminar flow conditions. Accordingly, this investigation develops a new empirical equation for the friction factor in laminar flow, which is more accurate than the traditional equation for laminar flow.

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