| 表面活性剂水溶液池核沸腾换热试验 |
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| 引用本文： | 宋新南,顾加强,胡自成,王谦.表面活性剂水溶液池核沸腾换热试验[J].江苏大学学报(自然科学版),2010,31(2). |
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| 作者姓名： | 宋新南 顾加强 胡自成 王谦 |
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| 作者单位： | 江苏大学,能源与动力工程学院,江苏,镇江,212013 |
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| 基金项目： | 江苏省自然科学基金资助项目(BK2008234);;江苏大学高级人才专项基金资助项目(07JDG051);;江苏大学博士研究生创新计划项目(CX08B_04X) |
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| 摘 要： | 在对3种表面活性剂SDS,Triton X-100和Triton X-114进行热重分析试验和对其溶液进行热稳定性试验的基础上,对3种表面活性剂的不同浓度溶液在常压下进行了池内核态沸腾换热试验,并对汽泡行为进行可视化观察.结果表明,200℃以内,3种表面活性剂的热稳定性好,3种表面活性剂溶液持续沸腾4 d而其表面活性基本不变.和水相比,表面活性剂强化池内核态沸腾换热的最佳浓度为临界胶束浓度(CMC);不同种类表面活性剂强化换热程度不同,它们与表面活性剂的溶解特性、离子类型和化学结构有关;溶液沸腾时,沸腾汽泡的脱离直径变小,脱离频率变快和更不易聚集,但非离子表面活性Triton X-100和Triton X-114由于存在浊点其沸腾溶液变浑浊.
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| 关 键 词： | 表面活性剂 池核沸腾 传热强化 热稳定性 可视化 |
An experiment on nucleate pool boiling heat transfer of aqueous surfactant solutions |
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| Song Xinnan,Gu Jiaqiang,Hu Zicheng,Wang Qian.An experiment on nucleate pool boiling heat transfer of aqueous surfactant solutions[J].Journal of Jiangsu University:Natural Science Edition,2010,31(2). |
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| Authors: | Song Xinnan Gu Jiaqiang Hu Zicheng Wang Qian |
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| Institution: | School of Energy and Power Engineering/a>;Jiangsu University/a>;Zhenjiang/a>;Jiangsu 212013/a>;China |
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| Abstract: | Based on thermo-gravimetric analysis experiments of surfactants and thermal stability experiments of aqueous surfactant solutions,experiments for nucleate pool boiling of water with different aqueous surfactant,99% sodium dodecyl sulfate(SDS),Triton X-100 and Triton X-114,were carried out under atmospheric pressure to investigate boiling heat transfer enhancement characteristics.Bubble behaviors were observed with high-speed digital camera.The results show that surfactantshave good thermal stability when te... |
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| Keywords: | surfactants nucleate pool boiling heat transfer enhancement thermal stability visualization |
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