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纳米与微米颗粒污垢沉积的表面特性及等效关系

张一龙 孙美 刘坐东 王景涛 徐志明

化工进展Issue(1):266-272,7.
化工进展Issue(1):266-272,7.DOI:10.16085/j.issn.1000-6613.2015.01.047

纳米与微米颗粒污垢沉积的表面特性及等效关系

Nanoparticles and microparticles fouling surface characteristics and their equivalent relationship

张一龙 1孙美 2刘坐东 1王景涛 3徐志明3

作者信息

  • 1. 华北电力大学能源与机械工程学院,北京 102206
  • 2. 黑龙江电力勘察设计院,黑龙江 哈尔滨 150010
  • 3. 东北电力大学能源与动力工程学院,吉林 吉林 132012
  • 折叠

摘要

Abstract

Particulate fouling research is mainly done by experiment at present. There are hardly any research on internal relationship between nanometer and micrometer particles fouling through simulation and experiment. There are some similar deposition characteristics between nanoparticle and micro particle fouling. Nanoparticle and micro particle fouling deposition experiments were conducted under different working conditions,and surface characteristics were observed by SEM. The fouling deposition quantity was determined by simulation with different particle sizes. A gradual growth trend of deposition quantity of particles fouling was observed. Due to agglomeration effect,there was similar deposition result between nanoparticles and micro particles fouling. The equivalent diameter was proposed for nanoparticles by combining the nanoparticles experiment and micro particles simulation results. The equivalent diameter was 9.2μm for 0.4g/L nanometer suspensions. The equivalent diameter was 11.2μm for 0.6g/L nanometer suspensions.

关键词

纳米颗粒/微米颗粒/结垢/数值模拟/团聚

Key words

nanoparticles/micro particles/fouling/numerical simulation/agglomeration

分类

能源科技

引用本文复制引用

张一龙,孙美,刘坐东,王景涛,徐志明..纳米与微米颗粒污垢沉积的表面特性及等效关系[J].化工进展,2015,(1):266-272,7.

基金项目

国家自然科学基金项目(51076025)。 ()

化工进展

OA北大核心CSCDCSTPCD

1000-6613

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