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Microwave attenuation characteristics of unburned carbon in fly ash

机译：粉煤灰中未燃烧碳的微波衰减特性

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摘要

Experimental research was conducted on the relationship between the unburned carbon content in fly ash and the microwave power attenuation at frequencies ranging from 1.0 to 4.0 GHz. The experimental results show that the unburned carbon in fly ash exhibits the frequency characteristics of microwave power attenuation. At some frequencies, the microwave power attenuation increases with the carbon content. At other frequencies, the relationship between them changes. There is also a range of frequencies where the loss decreases while the unburned carbon content increases. A detailed analysis on the mechanisms of this phenomenon is made based on the conductivity loss, absorption and dispersion theories.
机译：实验研究了粉煤灰中未燃烧碳含量与微波功率衰减在1.0至4.0 GHz频率之间的关系。实验结果表明，粉煤灰中未燃烧的碳表现出微波功率衰减的频率特性。在某些频率下，微波功率衰减随碳含量的增加而增加。在其他频率下，它们之间的关系发生变化。在某些频率范围内，损耗减少而未燃烧的碳含量增加。基于电导率损失，吸收和色散理论对这种现象的机理进行了详细分析。

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  • 来源
    《Fuel》 |2010年第11期|P.3352-3357|共6页
  • 作者

    Liu Haiyu; Tan Houzhang; Gao Qiang; Wang Xuebin; Xu Tongmo;

  • 作者单位

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

    rnState Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

    rnState Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

    rnState Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

    rnState 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

    unburned carbon content in fly ash; microwave; power attenuation; frequency;

    机译：粉煤灰中未燃烧的碳含量;微波;功率衰减频率;

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