Heat transfer enhancement of TiO 2 /water nanofluid at laminar and turbulent flows

A numerical approach for evaluating the effect of nanoparticle loadings

Budi Kristiawan, Budi Santoso, Agung Tri Wijayanta, Muhammad Aziz, Takahiko Miyazaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Titania-based nanofluid flowing inside a circular tube under the boundary condition of a horizontal uniformly heated wall was investigated numerically for both laminar and turbulent flows. In this work, an innovative numerical method using an Eulerian approach for the two-phase mixture model was used to simulate the flow and convective heat transfer characteristics. The effect of nanoparticle loading and Reynolds number on the flow and heat transfer characteristics was observed. The Reynolds number was 500 and 1200 for laminar flow, while for turbulent flow, the Reynolds number was varied in the range from 4000 to 14,000. A comparison with the established empirical correlations was made. The results clearly showed at the laminar and turbulent flows that the existing nanoparticles provided a considerable enhancement in the convective heat transfer. For laminar flow, the numerical results found that the enhancement in the convective heat transfer coefficient of nanofluids were 4.63, 11.47, and 20.20% for nanoparticle loadings of 0.24, 0.60, and 1.18 vol.%, respectively. On the other hand, for turbulent flow, the corresponding heat transfer increases were 4.04, 10.33, and 21.87%.

Original languageEnglish
Article numberen11061584
JournalEnergies
Volume11
Issue number6
DOIs
Publication statusPublished - Jun 1 2018

Fingerprint

Heat Transfer Enhancement
Nanofluid
Laminar Flow
Laminar flow
Turbulent Flow
Convective Heat Transfer
Turbulent flow
Nanoparticles
Heat transfer
Reynolds number
Water
Heat Transfer
Enhancement
Heat Transfer Coefficient
Titanium
Mixture Model
Heat transfer coefficients
Numerical methods
Tube
Horizontal

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

Cite this

Heat transfer enhancement of TiO 2 /water nanofluid at laminar and turbulent flows : A numerical approach for evaluating the effect of nanoparticle loadings. / Kristiawan, Budi; Santoso, Budi; Wijayanta, Agung Tri; Aziz, Muhammad; Miyazaki, Takahiko.

In: Energies, Vol. 11, No. 6, en11061584, 01.06.2018.

Research output: Contribution to journalArticle

@article{caabaee263954d3f968412a7014c9fda,
title = "Heat transfer enhancement of TiO 2 /water nanofluid at laminar and turbulent flows: A numerical approach for evaluating the effect of nanoparticle loadings",
abstract = "Titania-based nanofluid flowing inside a circular tube under the boundary condition of a horizontal uniformly heated wall was investigated numerically for both laminar and turbulent flows. In this work, an innovative numerical method using an Eulerian approach for the two-phase mixture model was used to simulate the flow and convective heat transfer characteristics. The effect of nanoparticle loading and Reynolds number on the flow and heat transfer characteristics was observed. The Reynolds number was 500 and 1200 for laminar flow, while for turbulent flow, the Reynolds number was varied in the range from 4000 to 14,000. A comparison with the established empirical correlations was made. The results clearly showed at the laminar and turbulent flows that the existing nanoparticles provided a considerable enhancement in the convective heat transfer. For laminar flow, the numerical results found that the enhancement in the convective heat transfer coefficient of nanofluids were 4.63, 11.47, and 20.20{\%} for nanoparticle loadings of 0.24, 0.60, and 1.18 vol.{\%}, respectively. On the other hand, for turbulent flow, the corresponding heat transfer increases were 4.04, 10.33, and 21.87{\%}.",
author = "Budi Kristiawan and Budi Santoso and Wijayanta, {Agung Tri} and Muhammad Aziz and Takahiko Miyazaki",
year = "2018",
month = "6",
day = "1",
doi = "10.3390/en11061584",
language = "English",
volume = "11",
journal = "Energies",
issn = "1996-1073",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "6",

}

TY - JOUR

T1 - Heat transfer enhancement of TiO 2 /water nanofluid at laminar and turbulent flows

T2 - A numerical approach for evaluating the effect of nanoparticle loadings

AU - Kristiawan, Budi

AU - Santoso, Budi

AU - Wijayanta, Agung Tri

AU - Aziz, Muhammad

AU - Miyazaki, Takahiko

PY - 2018/6/1

Y1 - 2018/6/1

N2 - Titania-based nanofluid flowing inside a circular tube under the boundary condition of a horizontal uniformly heated wall was investigated numerically for both laminar and turbulent flows. In this work, an innovative numerical method using an Eulerian approach for the two-phase mixture model was used to simulate the flow and convective heat transfer characteristics. The effect of nanoparticle loading and Reynolds number on the flow and heat transfer characteristics was observed. The Reynolds number was 500 and 1200 for laminar flow, while for turbulent flow, the Reynolds number was varied in the range from 4000 to 14,000. A comparison with the established empirical correlations was made. The results clearly showed at the laminar and turbulent flows that the existing nanoparticles provided a considerable enhancement in the convective heat transfer. For laminar flow, the numerical results found that the enhancement in the convective heat transfer coefficient of nanofluids were 4.63, 11.47, and 20.20% for nanoparticle loadings of 0.24, 0.60, and 1.18 vol.%, respectively. On the other hand, for turbulent flow, the corresponding heat transfer increases were 4.04, 10.33, and 21.87%.

AB - Titania-based nanofluid flowing inside a circular tube under the boundary condition of a horizontal uniformly heated wall was investigated numerically for both laminar and turbulent flows. In this work, an innovative numerical method using an Eulerian approach for the two-phase mixture model was used to simulate the flow and convective heat transfer characteristics. The effect of nanoparticle loading and Reynolds number on the flow and heat transfer characteristics was observed. The Reynolds number was 500 and 1200 for laminar flow, while for turbulent flow, the Reynolds number was varied in the range from 4000 to 14,000. A comparison with the established empirical correlations was made. The results clearly showed at the laminar and turbulent flows that the existing nanoparticles provided a considerable enhancement in the convective heat transfer. For laminar flow, the numerical results found that the enhancement in the convective heat transfer coefficient of nanofluids were 4.63, 11.47, and 20.20% for nanoparticle loadings of 0.24, 0.60, and 1.18 vol.%, respectively. On the other hand, for turbulent flow, the corresponding heat transfer increases were 4.04, 10.33, and 21.87%.

UR - http://www.scopus.com/inward/record.url?scp=85049637332&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049637332&partnerID=8YFLogxK

U2 - 10.3390/en11061584

DO - 10.3390/en11061584

M3 - Article

VL - 11

JO - Energies

JF - Energies

SN - 1996-1073

IS - 6

M1 - en11061584

ER -