骆仲泱,吴越琼,胡倩,王涛,倪明江

• 1:浙江大学能源清洁利用国家重点实验室

摘要(Abstract)：

纳米流体作为新型换热工质,是强化传热的有效途径。今用两步法制备碳纳米管-导热油纳米流体,实验研究流变及导热性能,分析碳纳米管长短、体积分数、温度、转速、SN比(活性剂与纳米颗粒质量比)等因素的影响。结果表明,导热率和黏度随体积分数提高而增大,但随温度升高而下降;碳纳米管长度短,黏度小;长度长,导热率高;体积分数为7%时,导热率提高50%。本研究制备流体都为假塑性流体,低转速下,黏度随SN比先减小后增大;导热率H-C模型中,形状因子n取7时与实验数据基本吻合,并据此提出适合本研究的导热率修正公式。

关键词(KeyWords)： 纳米流体;导热油;碳纳米管;导热率;黏度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(5127616);; 浙江省自然科学基金(LY12E06005);; 国际科技合作项目支持(2011DFR60190);; 中央高校基本科研业务费专项资金资助(2012FZA4012)

作者(Author): 骆仲泱,吴越琼,胡倩,王涛,倪明江

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