Influence of surfactant on characteristics of solid-liquid phase change for water-based nanofluid

LI Xing; CHEN Ying; MO Songping; JIA Lisi

doi:10.3969/j.issn.0438-1157.2013.09.034

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Influence of surfactant on characteristics of solid-liquid phase change for water-based nanofluid

更新时间：2025-12-10

- Influence of surfactant on characteristics of solid-liquid phase change for water-based nanofluid
- CIESC Journal Issue 9, Pages: 3324-3330(2013)
- 作者机构：
  
  1. 广东工业大学材料与能源学院,广东,广州,510006
  2. 重庆大学动力工程学院,重庆,400044
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.09.034
  CLC： B61+1
- Online First：05 September 2013，
  
  Published：05 September 2013
- 稿件说明：
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LI Xing, CHEN Ying, MO Songping, et al. Influence of surfactant on characteristics of solid-liquid phase change for water-based nanofluid[J]. CIESC Journal, 2013, (9): 3324-3330.
DOI：

LI Xing, CHEN Ying, MO Songping, et al. Influence of surfactant on characteristics of solid-liquid phase change for water-based nanofluid[J]. CIESC Journal, 2013, (9): 3324-3330. DOI： 10.3969/j.issn.0438-1157.2013.09.034.

摘要

Abstract

Surfactant was used in the study to help dispersing TiO2 nanoparticles in deionized water.The effects of different surfactants(sodium dodecyl benzene sulfonate(SDBS)

polyvinylpyrrolidone(PVP)and cetyl trimethyl ammonium bromide(CTAB))on the dispersion stability and solid-liquid phase transition of TiO2-H2O nanofluids were investigated.Surfactants SDBS and PVP significantly enhanced the dispersion stability of TiO2-H2O nanofluid

and reduced its degree of supercooling by about 37.02% and 9.65%

respectively.Whereas

surfactant CTAB showed no effect on improving the dispersion stability of TiO2-H2O nanofluid

and even worse

increased the degree of supercooling of nanofluid by about 6.11%.The adsorption structures of SDBS

PVP and CTAB were analyzed by measuring the adsorbent layer thickness on TiO2 nanoparticles(X-ray photoelectron spectroscopy).The adsorption structures of surfactants SDBS and PVP were hydrophilic while that of surfactant CTAB was micellar

which could explain the above phenomena.In addition

all three surfactants were found to extend the phase transition time of TiO2-H2O nanofluid due to the decrease in the thermal conductivity of nanofluid.

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