Investigation on spray cooling heat transfer performance with different nanoparticles and surfactants

Jun Bao, Yu Wang, Risto Kosonen, Xinjie Xu, Jinxiang Liu

科研成果: 期刊稿件文章同行评审

7 引用 (Scopus)

摘要

The spray cooling enhancement method has consistently been the focus area for research as a highly effective cooling method that can alter the properties of spray media by allowing the addition of different types of additives. In this study, an open spray cooling system was established for experimental purposes. Firstly, the effects of nozzles on the spray cooling characteristics were investigated through four kinds of nozzle experiments. Al2O3-H2O, TiO2-H2O, ZrO2-H2O, and SiO2-H2O nanofluids were chosen as cooling substances based on the optimal nozzles, and the effects of the type and concentration of nanoparticles on cooling performance were studied. Based on the performance of the nanoparticles, sodium dodecyl benzenesulfonate(SDBS) was selected as the surfactant for Al2O3 and TiO2 nanoparticles, while cetyltrimethyl ammonium bromide(CTAB) was selected as the surfactant for ZrO2 and SiO2 nanoparticles. The effects of surfactants with different concentrations on the heat transfer performance of nanofluids were studied. The results showed that when the mass fraction of SiO2 nanoparticles was 0.2% and CTAB was 0.005%, an optimal cooling effect was achieved; which was 5.9% higher than that of water and 1.7% higher than that obtained without CTAB.

源语言英语
页(从-至)887-901
页数15
期刊Heat and Mass Transfer
58
5
DOI
出版状态已出版 - 5月 2022

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