• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Building and Environment >Electrostatically assisted metal foam coarse filter with small pressure drop for efficient removal of fine particles: Effect of filter medium
【24h】

Electrostatically assisted metal foam coarse filter with small pressure drop for efficient removal of fine particles: Effect of filter medium

机译：静电辅助金属泡沫粗滤器，压降小，可有效去除细颗粒：过滤介质的作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Traditionally preferred air filtration systems have a large pressure drop, and consequently use energy in building ventilation systems. This study developed an electrostatically assisted metal foam (EAMF) coarse filter. Comparing with electrostatic precipitator (ESP), in an EAMF coarse filter, charged particles go through rather than in parallel to the collecting electrodes and therefore are more likely to be removed from air flow as they are drawn closer to the collecting electrodes. We investigated the influences of material and pore density of metal foam on fraction filtration efficiency of 0.3-10 gm particles, net ozone production, pressure drop and power dissipation of the EAMF coarse filter. We used ambient aerosol in a ventilation duct to perform our experiments. Using 75 ppi nickel foam, the EAMF coarse filter can remove 0.3-0.5 mu m particles from ambient air with 78.9% filtration efficiency and 10.8 Pa pressure drop at 0.5 m/s face air velocity. We defined a structural coefficient N-s,N-E = a(1/3)/d(f)(2/3) to evaluate the theoretical filtration efficiency of the EAMF coarse filter. We proposed that metal foams whose oxide layers have smaller (h(o)/epsilon(r,o))aremore efficient in EAMF coarse filters. We also presented a comprehensive quality factor (CQF) to evaluate the performance of electrostatic particle removal technologies including our EAMF coarse filter.
机译：传统上优选的空气过滤系统具有大的压降，因此在建筑物通风系统中使用能量。这项研究开发了一种静电辅助金属泡沫（EAMF）粗滤器。与静电除尘器（ESP）相比，在EAMF粗滤器中，带电粒子通过而不是平行于收集电极，因此，随着被拉近收集电极，带电粒子更有可能从气流中去除。我们研究了金属泡沫的材料和孔密度对0.3-10 gm颗粒的级分过滤效率，净臭氧产生，压降和EAMF粗滤器功耗的影响。我们在通风管道中使用环境气溶胶进行实验。使用75 ppi的镍泡沫，EAMF粗滤器可以从环境空气中去除0.3-0.5μm的颗粒，过滤效率为78.9％，在面对空气速度为0.5 m / s时的压降为10.8 Pa。我们定义了结构系数N-s，N-E = a（1/3）/ d（f）（2/3），以评估EAMF粗滤器的理论过滤效率。我们提出，在EAMF粗滤器中，氧化物层较小（h（o）/ epsilon（r，o））的金属泡沫更为有效。我们还提出了一个综合质量因子（CQF），以评估静电颗粒去除技术（包括我们的EAMF粗滤器）的性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号