Measurement and Analysis of multiple distribution of tribo-charge for a mixture of particles in gas-solids pipe flow

气固管流中颗粒混合物摩擦荷电多重分布的测量与分析

基本信息

  • 批准号:
    13305054
  • 负责人:
  • 金额:
    $ 26.46万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2003
  • 项目状态:
    已结题

项目摘要

The tribo-charging of particles in gas-solids pipe flow has been studied both theoretically and experimentally. A model for the particle charging has been presented, which is based on the charge transfer caused by particle impact on the wall surface and takes into account three probability density functions, i.e. (i) the number of collisions of a particle with the wall, (ii) initial particle charge, and (iii) the impact charging factor characterizing the transferred charge. These functions individually affect the electrostatic charge distribution, and hence key parameters on the particle electrification can be determined from the charge distribution. To verify the model, a system for measuring particle charge distribution has been constructed and the relevant experiments have been carried out using positively charged particles and negatively charged particles. It was found that the experimental results were in agreement with the theoretical ones, and by analyzing the values of the key parameters determined from the experimental data, the states of the particle charging were evaluated quantitatively. Furthermore, bipolar charge distributions were measured using a mixture of powders, showing that the charge distributions in a dilute phase transport system could be explained by the linear additivity of the charge distribution of each powder. It was also found that the particle charge can be controlled by the arrangement of the pipes made of different materials. In the present research, the system to analyze and control the particle charging was constructed.
对气固两相管流中颗粒的摩擦荷电进行了理论和实验研究。本文提出了一个颗粒荷电模型,该模型以颗粒撞击壁面引起的电荷转移为基础,考虑了三个概率密度函数,即(I)颗粒与壁面的碰撞次数、(Ii)颗粒初始电荷和(Iii)表征转移电荷的冲击电荷因子。这些函数分别影响静电电荷分布,因此可以根据电荷分布确定粒子带电的关键参数。为了验证该模型,建立了测量粒子电荷分布的系统,并用带正电荷和带负电荷的粒子进行了相关的实验。结果表明,实验结果与理论结果相吻合,并通过对实验数据确定的关键参数的取值进行分析,定量地评价了粒子的荷电状态。此外,用混合粉末测量了双极电荷分布,表明稀相输运系统中的电荷分布可以用每个粉末电荷分布的线性加性来解释。研究还发现,颗粒电荷可以通过不同材料管道的布置来控制。本研究构建了颗粒带电分析与控制系统。

项目成果

期刊论文数量(44)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Ema, A., D.Yasuda, K.Tanoue, H.Masuda: "Tribo-charge and rebound characteristics of particles impact on inclined or rotating metal target"Powder Technol.. 135-136. 2-13 (2003)
Ema,A.,D.Yasuda,K.Tanoue,H.Masuda:“粒子撞击倾斜或旋转金属目标的摩擦电荷和回弹特性”粉末技术.. 135-136。
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    0
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Ema, A., K.Tanoue, H., Maruyama, H.Masuda: "Impact electrification of particles with metal plate in nitrogen atmospher"J.Soc.Powder Technol. (Japan). 38. 695-701 (2001)
Ema,A.,K.Tanoue,H.,Maruyama,H.Masuda:“氮气气氛中金属板颗粒的冲击起电”J.Soc.Powder Technol。
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    0
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田之上健一郎, 山本雅人, 江間秋彦, 増田弘昭: "静電粒子沈着の非定常挙動"化学工学論文集. 28. 196-201 (2002)
Kenichiro Tanoue、Masato Yamamoto、Akihiko Ema、Hiroaki Masuda:“静电粒子沉积的不稳定行为”化学工程杂志 28. 196-201 (2002)。
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    0
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Nomura, T., T.Satoh, H.Masuda: "The environment humidity effect on the tribo-charge of powder"Powder Technology. 135-136. 43-49 (2003)
Nomura, T., T.Satoh, H.Masuda:“环境湿度对粉末摩擦电荷的影响”粉末技术。
  • DOI:
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  • 影响因子:
    0
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Matsusaka, S., M.Oki, H.Masuda: "Bipolar charge distribution of a mixture of particles with different electrostatic characteristics in gas-solids pipe flow"Powder Technology. 135-136. 150-155 (2003)
Matsusaka, S.、M.Oki、H.Masuda:“气固管流中具有不同静电特性的颗粒混合物的双极电荷分布”粉末技术。
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    0
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MASUDA Hiroaki其他文献

MASUDA Hiroaki的其他文献

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{{ truncateString('MASUDA Hiroaki', 18)}}的其他基金

Developement of Analysing System for Characteistics of Electrification of Powder Particles
粉体颗粒带电特性分析系统的研制
  • 批准号:
    10555265
  • 财政年份:
    1998
  • 资助金额:
    $ 26.46万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
"Measurement of powder flow rate in a gas-solids pipe flow based on the electron energy difference"
“基于电子能量差测量气固管流中的粉末流量”
  • 批准号:
    08455355
  • 财政年份:
    1996
  • 资助金额:
    $ 26.46万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

相似海外基金

Research Initiation Award: Investigation on Tribo-charging Behavior of Agricultural Particles in the Development of Water-free Bio-separation Approach for Biomass Residues
研究启动奖:生物质残留物无水生物分离方法开发中农业颗粒摩擦带电行为的研究
  • 批准号:
    1900894
  • 财政年份:
    2019
  • 资助金额:
    $ 26.46万
  • 项目类别:
    Standard Grant
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