Experimental investigation on nucleation supercooling degree of TiO2-H2O nanofluids for cool storage

被引：3

作者：

He, Qinbo ^{[1
,2
,3
]}

Zeng, Shequan ^{[1
]}

Yin, Shaoyou ^{[2
,3
]}

Wang, Shuangfeng ^{[1
]}

机构：

[1] South China Univ Technol, Minist Educ, Sch Chem & Chem Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510641, Guangdong, Peoples R China

[2] Shunde Polytech, Foshan 528333, Guangdong, Peoples R China

[3] Guangdong Univ Heat Pump Engn Technol Dev Ctr, Foshan 528333, Guangdong, Peoples R China

来源：

ADVANCES IN CHEMICAL ENGINEERING II, PTS 1-4 | 2012年 / 550-553卷

关键词：

Nanofluids; Phase change material (PCM); Supercooling degree; cool storage; TiO2;

D O I：

10.4028/www.scientific.net/AMR.550-553.2723

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents a study on the impact of the nucleation supercooling degree of nanofluids. Three different mass fraction TiO2-H2O nanofiuids with 20nm TiO2 were prepared by supersonic oscillator through appending hydrophilic dispersant into deionized water. TiO2-H2O nanofluids and deionized water were tested by the experiments of freezing synchronous. The experimental results show that nanofluids have remarkably lower supercooling degree than deionized water, and the time of beginning nucleation is ahead of deionized water, also the total freezing time is lower than that of deionized water. And the influences of different cooling temperature to the supercooling degree were observed, with the cooling temperature increasing, the supercooling degree reduced.

引用

页码：2723 / +

页数：2

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