制冷学报2011，Vol.32Issue(5)：64-66,74,4.DOI:10.3969/j.issn.0253-4339.2011.05.064
低温相变纳米流体释冷特性研究
Experimental Study on Discharge Characteristic of Low-Temperature Phase Change Nanofluids
何钦波 1郑兆志 1吴治将1
作者信息
- 1. 顺德职业技术学院机电工程系 佛山528333
- 折叠
摘要
Abstract
After suspending TiO2 nanoparticles ( particle size 20 nm) in low temperature BaCl2 solution, TiO2- BaCl2~ H2O nanofluid with volume fraction of 1.13 % could be obtained through supersonic oscillator by adding hydrophilic dispersant. The discharging performance of BaCl2 solution and nanofluids were tested. The experimental results show that nanofluids have remarkably larger rate of cool discharging than BaCl2 solution, and the cool discharge capacity of nanofluids are more than BaCl2 solution during the same time; the heat transfer coefficient of heat exchanger is improved remarkably, and the total heat transfer coefficient of nanofluid in the heat exchanger is higher than mat of BaCl2 solution, which verified the nanoparticles contribute to strengthen the heat performance of PCM.关键词
工程热物理/纳米流体/相变蓄冷/释冷/传热/TiO2Key words
Engineering thermophysics/ Nanofluids/ Phase change cool storage/ Cool discharge/ Heat transfer/ TiO2分类
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何钦波,郑兆志,吴治将..低温相变纳米流体释冷特性研究[J].制冷学报,2011,32(5):64-66,74,4.
