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首页> 外文期刊>International Journal of Heat and Mass Transfer >Effect of C60 nanofluid on the thermal performance of a flat-plate pulsating heat pipe
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Effect of C60 nanofluid on the thermal performance of a flat-plate pulsating heat pipe

机译：C60纳米流体对平板脉动热管热性能的影响

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摘要

An experimental study on heat-transfer performance of a flat-plate closed loop pulsating heat pipe (FCLPHP) with C60 nanofluid was carried out. The C60 nanofluid was a mixture of ethanol and C60 nano-particles at three different concentrations of 0.1 wt%, 0.2 wt% and 0.3 wt%. The experimental results show that increasing C60 nanofluid concentration improves the thermal performance of the FCLPHP, but reduces the critical heat load, at which FCLPHP begins to dry out. The critical heat load was reduced from 70 W for base fluid to 35 W for nanofluid with concentration of 0.3 wt%. In order to evaluate the improvement of the heat transfer performance of the nanofluid FCLPHP, improving rate τ is used. The higher the τ value, the greater the degree of improvement is. It is found that τ firstly increases up to a maximum value and then decreases gradually with the increase of heat load. The maximum τ value was 36% when the heat load was 20 W at a concentration of 0.3 wt%. A regression model was proposed for the FCLPHP, with which a sensitivity analysis was made. The analysis shows that the heat load impacts the thermal performance more than the concentration does.
机译：进行了具有C60纳米流体的平板闭环脉动热管（FCLPHP）传热性能的实验研究。 C60纳米流体是乙醇和C60纳米颗粒的混合物，三种浓度分别为0.1 wt％，0.2 wt％和0.3 wt％。实验结果表明，增加C60纳米流体的浓度可以改善FCLPHP的热性能，但可以降低临界热负荷，此时FCLPHP开始变干。临界热负荷从基础流体的70 W降低到浓度为0.3 wt％的纳米流体的35W。为了评估纳米流体FCLPHP的传热性能的改善，使用改善率τ。 τ值越高，改善程度越大。发现τ首先随着热负荷的增加而增加到最大值，然后逐渐减小。当在0.3wt％的浓度下热负荷为20W时，最大τ值为36％。为FCLPHP提出了回归模型，并进行了敏感性分析。分析表明，热负荷对热性能的影响比集中影响更大。

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  • 来源
  • 作者

    Qingping Wu; Rongji Xu; Ruixiang Wang; Yanzhong Li;

  • 作者单位

    School of Energy and Power Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China;

    Beijing University of Civil Engineering and Architecture, Beijing, China;

    Beijing University of Civil Engineering and Architecture, Beijing, China;

    School of Energy and Power Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

  • 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
  • 中图分类
  • 关键词

    Pulsating heat pipe; C60 nanofluid; Overall thermal resistance; Thermal performance;

    机译：脉动热管;C60纳米流体;整体热阻;热性能;

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