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首页> 外文期刊>International Journal of Heat and Mass Transfer >Heat transfer by a piezoelectric fan on a flat surface subject to the influence of horizontal/vertical arrangement
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Heat transfer by a piezoelectric fan on a flat surface subject to the influence of horizontal/vertical arrangement

机译：受水平/垂直排列影响的压电风扇在平面上的热传递

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摘要

This study presents an experimental work concerning the thermal performance of piezoelectric fans. A total of six piezoelectric fans with various blade geometries are made and tested. The influence of geometric parameters, including the horizontal/vertical arrangement, and location of the piezofan, on the performance of piezofans is examined. It is found that the heat transfer augmentation of the piezofan comes from the entrained airflow during each oscillation cycle and the jet-like air stream at the fan tip, yet these two modes are of the same order of magnitude. The heat transfer performance for vertical arrangement shows a symmetrical distribution and peaks at the center region whereas the horizontal arrangement possesses an asymmetrical distribution and shows an early peak at x/L = 0.25. It is also found that the heat transfer performance for horizontal arrangement is not necessarily lower than that of vertical one. Based on the dimensionless analysis to the test results for the all six fans, a correlation applicable for x/L = 0 is proposed. The mean deviation is 4.8% that can well describe the influence of geometrical parameters.
机译：这项研究提出了有关压电风扇的热性能的实验工作。总共制造并测试了六个具有不同叶片几何形状的压电风扇。研究了几何参数（包括水平/垂直排列以及压电风扇的位置）对压电风扇性能的影响。已经发现，压电风扇的传热增强来自每个振荡周期中夹带的气流和风扇尖端的喷射状气流，但是这两种模式的数量级相同。垂直布置的传热性能显示出对称分布并在中心区域出现峰值，而水平布置则显示出不对称分布并在x / L = 0.25处出现早期峰值。还发现水平布置的传热性能不一定低于垂直布置的传热性能。基于对所有六个风扇的测试结果的无量纲分析，提出了适用于x / L = 0的相关性。平均偏差为4.8％，可以很好地描述几何参数的影响。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2009年第12期|2565-2570|共6页
  • 作者

    Sheng-Fu Liu; Ren-Tsung Huang; Wen-Jenn Sheu; Chi-Chuan Wang;

  • 作者单位

    Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;

    Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;

    Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;

    Energy £ Environment Research Laboratories, Industrial Technology Research Institute, D100 EEL/TRI, Bldg. 64, 195～6 Section 4, Chung Hsing Rd., Chutung, Hsinchu 310, Taiwan;

  • 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

    piezoelectric fan; bonding glue; lumped-mass model; damping factor;

    机译：压电风扇粘接胶集总模型阻尼因子;

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