Experimental study on effective thermal conductivity of nanofluids in shear flow fields

Cheng Zhen Sun; Bo Feng Bai; Wen Qiang Lu; Jie Liu

Experimental study on effective thermal conductivity of nanofluids in shear flow fields

Cheng Zhen Sun
, Bo Feng Bai
, Wen Qiang Lu
, Jie Liu

School of Energy and Power Engineering

University of Chinese Academy of Sciences

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

Abstract

In this paper, the effective thermal conductivity (ETC) of H₂O+SiO₂ nanofluids in shear fields is measured and compared with the conventional correlation. The flow shear rate varies within the range of 89~820 s^-1. For the tested nanofluids, the ETC increases with the shear rate increasing and reaches a plateau value above a critical shear rate. The increase of the ETC with shear rate is more obvious as increases the nanoparticle diameter and volume fraction. The ETC of nanofluids fails to be predicted by the conventional correlation, in which the ETC monotonously increases with increasing the shear rate.

Original language	English
Pages (from-to)	2288-2291
Number of pages	4
Journal	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Volume	34
Issue number	12
State	Published - Dec 2013

Keywords

Effective thermal conductivity
Experimental measurement
Nanofluids
Shear flow

Cite this

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title = "Experimental study on effective thermal conductivity of nanofluids in shear flow fields",

abstract = "In this paper, the effective thermal conductivity (ETC) of H2O+SiO2 nanofluids in shear fields is measured and compared with the conventional correlation. The flow shear rate varies within the range of 89\textasciitilde{}820 s-1. For the tested nanofluids, the ETC increases with the shear rate increasing and reaches a plateau value above a critical shear rate. The increase of the ETC with shear rate is more obvious as increases the nanoparticle diameter and volume fraction. The ETC of nanofluids fails to be predicted by the conventional correlation, in which the ETC monotonously increases with increasing the shear rate.",

keywords = "Effective thermal conductivity, Experimental measurement, Nanofluids, Shear flow",

author = "Sun, \{Cheng Zhen\} and Bai, \{Bo Feng\} and Lu, \{Wen Qiang\} and Jie Liu",

year = "2013",

month = dec,

language = "英语",

volume = "34",

pages = "2288--2291",

journal = "Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics",

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TY - JOUR

T1 - Experimental study on effective thermal conductivity of nanofluids in shear flow fields

AU - Sun, Cheng Zhen

AU - Bai, Bo Feng

AU - Lu, Wen Qiang

AU - Liu, Jie

PY - 2013/12

Y1 - 2013/12

N2 - In this paper, the effective thermal conductivity (ETC) of H2O+SiO2 nanofluids in shear fields is measured and compared with the conventional correlation. The flow shear rate varies within the range of 89~820 s-1. For the tested nanofluids, the ETC increases with the shear rate increasing and reaches a plateau value above a critical shear rate. The increase of the ETC with shear rate is more obvious as increases the nanoparticle diameter and volume fraction. The ETC of nanofluids fails to be predicted by the conventional correlation, in which the ETC monotonously increases with increasing the shear rate.

AB - In this paper, the effective thermal conductivity (ETC) of H2O+SiO2 nanofluids in shear fields is measured and compared with the conventional correlation. The flow shear rate varies within the range of 89~820 s-1. For the tested nanofluids, the ETC increases with the shear rate increasing and reaches a plateau value above a critical shear rate. The increase of the ETC with shear rate is more obvious as increases the nanoparticle diameter and volume fraction. The ETC of nanofluids fails to be predicted by the conventional correlation, in which the ETC monotonously increases with increasing the shear rate.

KW - Effective thermal conductivity

KW - Experimental measurement

KW - Nanofluids

KW - Shear flow

UR - https://www.scopus.com/pages/publications/84891530766

M3 - 文章

AN - SCOPUS:84891530766

SN - 0253-231X

VL - 34

SP - 2288

EP - 2291

JO - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

JF - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

IS - 12

ER -

Experimental study on effective thermal conductivity of nanofluids in shear flow fields

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