Experimental Study on Super-cooling Degree of Nanofluids for Cryogenic Cool Storage

He Qinbo; Tong Mingwei; Liu Yudong

doi:10.3969/j.issn.0253-4339.2007.04.005

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Experimental Study on Super-cooling Degree of Nanofluids for Cryogenic Cool Storage

更新时间：2025-09-03

- Experimental Study on Super-cooling Degree of Nanofluids for Cryogenic Cool Storage
- Journal of Refrigeration Vol. 28, Issue 4, Pages: 33-36(2007)
- 作者机构：
  
  [1]顺德职业技术学院,顺德528300 [2]重庆大学动力工程学院,重庆,400030
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2007.04.005
  CLC：
- Published：2007
- 稿件说明：
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He Qinbo, Tong Mingwei, Liu Yudong. Experimental Study on Super-cooling Degree of Nanofluids for Cryogenic Cool Storage[J]. Journal of Refrigeration, 2007, 28(4): 33-36.
DOI：

He Qinbo, Tong Mingwei, Liu Yudong. Experimental Study on Super-cooling Degree of Nanofluids for Cryogenic Cool Storage[J]. Journal of Refrigeration, 2007, 28(4): 33-36. DOI： 10.3969/j.issn.0253-4339.2007.04.005.

摘要

在共晶盐BaCl2水溶液中添加亲水性分散剂，经过超声振动制备了粒径为20nm四种不同体积分数的TiO2-BaCl2-H2O纳米流体。对Baa2水溶液和纳米流体同步进行蓄冷实验，实验表明：加入纳米TiO2粉体后，可大幅度降低BaCl2水溶液的结晶成核过冷度，并且纳米流体的起始成核时间比BaCl2水溶液提前，结晶结束所花时间也要大大少于BaCl2水溶液。最后对纳米粒子影响基液的结晶机理进行了分析。

Abstract

Four different concentration TiO2-BaCl2-H2O nanofluids with 20nm TiO2 were prepared by supersonic oscillator through adding hydrophilic dispersant into BaCl2 solution. BaCl2-H2O and TiO2-BaCl2-H2O nanofluids were tested experimentally. The results show that nanofluids have remarkably lower supercooling degree than BaCl2-H2O

and the beginning nucleation time of nanofluids is ahead of BaCl2-H2O. Moreover

their crystallization time is lower than that of BaCl2-H2O. Also

the crystallization mechanism was analyzed for the influence of the nano TiQ2 particles on BaCl2-H2O.

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