Pool Boiling Heat Transfer Augmentation in a Novel Aqueous Binary Mixture of Surfactants

Prashant Pawar; Abdul Najim; Anil Acharya; Ashok Pise

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Pool Boiling Heat Transfer Augmentation in a Novel Aqueous Binary Mixture of Surfactants

机译：池沸腾的热传递在表面活性剂的新型二元混合物中增加

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This paper investigates the augmentation of heat transfer during pool boiling of a novel aqueous binary mixture of surfactants. The surfactants used were sodium dodecyl sulfate (SDS) (anionic), centrimonium bromide (CTAB) (cationic), and nicotine (non-ionic). The aqueous binary mixtures SDS-CTAB, CTAB-nicotine, and SDS-nicotine were prepared on the volume percentage basis. A reduction in surface tension was attained by SDS-CTAB, CTAB-nicotine, and SDS-nicotine aqueous mixtures compared to its individual aqueous surfactant solutions at their optimum concentrations. The most significant surface tension result was obtained by the novel SDS-nicotine aqueous binary system at 25:75 volume percentages. The heat transfer augmentation was investigated by studying the single bubble dynamic in the aqueous SDS-nicotine mixture. The investigation was conducted at two values of heat fluxes to probe the effect of heat flux on bubble dynamics. A significant decrement in the bubble departure diameter and a substantial increment in the release frequency was observed for the SDS-nicotine aqueous mixture at both heat fluxes. The heat transfer coefficient was found to be increased by 36.32% and 58.67% compared to saturated water at low and high heat flux, respectively.

机译：本文调查了表面活性剂的新型含水二元混合物的池沸腾过程中的传热增强。所用的表面活性剂是十二烷基硫酸钠（SDS）（阴离子），环溴（CTAB）（阳离子）和尼古丁（非离子）。在体积百分比的基础上制备水性二元混合物SDS-CTAB，CTAB-尼古丁和SDS-NICOTIN。通过以其最佳浓度的单独含水表面活性剂溶液相比，SDS-CTAB，CTAB-NICOTINE和SDS-NICOTINE水性混合物获得了表面张力的降低。在25:75体积百分比，新型SDS-NICOTINE水性二元体系获得最显着的表面张力结果。通过研究含水SDS-尼古丁混合物中的单泡动态来研究传热增强。调查在热通量的两个值下进行，以探测热通量对泡沫动力学的影响。在两个热通量下，观察到SDS-NICOTINE含水混合物的泡沫脱落直径和剥离频率大幅增加的显着衰落。与低热通量的饱和水相比，发现传热系数增加36.32％和58.67％。

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来源
《Journal of Heat Transfer》 |2021年第4期|044501.1-044501.7|共7页
作者
Prashant Pawar; Abdul Najim; Anil Acharya; Ashok Pise;
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作者单位

Department of Mechanical Engineering A.D.C.E.T Sangli Ashta 416301 India;

Department of Mechanical Engineering Indian Institute of Technology Bombay Mumbai 400076 India;

Department of Mechanical Engineering G.C.E. Karad Satara 415124 India;

Department of Mechanical Engineering G.C.E. Karad Satara 415124 India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
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关键词
pool boiling heat transfer; augmentation; aqueous mixed surfactants; SDS; nicotine;

机译：池沸腾热传递;增强;水性混合表面活性剂;SDS;尼古丁;

Pool Boiling Heat Transfer Augmentation in a Novel Aqueous Binary Mixture of Surfactants

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