...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Research >Impact of reflection on the fluence rate distribution in a UV reactor with various inner walls as measured using a micro-fluorescent silica detector
【24h】

Impact of reflection on the fluence rate distribution in a UV reactor with various inner walls as measured using a micro-fluorescent silica detector

机译：使用微荧光二氧化硅检测器测量，反射对具有各种内壁的UV反应器中注量速率分布的影响

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

An assessment of the impact of ultraviolet (UV) reflection from inner walls is important for the accuracy of model predictions of fluence rate (FR) distribution and for the improvement of reactor efficiency. In this study, the FR distribution in an annular UV reactor with inner walls of various reflectances was measured in-situ by using a 360° response micro-fluorescent silica detector. The tests were performed in water with various trans-mittances ranging from 65% to 99% and with inner reactor walls composed of quartz/ aluminum foil, quartz/stainless steel, or quartz/black cloth, whose reflection coefficients were determined to be 80.5%, 26.1% and 11.1%, respectively. The results demonstrate that an inner wall with a high reflection coefficient can lead to a marked increase in the weighted average FRs, thus greatly improving the reactor efficiency. Furthermore, the presently used FR distribution models could have an error of up to 35% for commonly used stainless steel walls as a result of the influence of inner-wall reflection. Finally, it was found that the uniformity of the FR distribution is strongly dependent on the diffuse reflection property of the inner wall, which could lead to a better fluence delivery distribution in the UV reactor. This work has potential application to increase the accuracy of model predictions as well as optimize the design of high-efficiency UV reactors.
机译：内壁紫外线（UV）反射影响的评估对于注量速率（FR）分布模型预测的准确性以及提高反应堆效率至关重要。在这项研究中，通过使用360°响应微荧光二氧化硅检测器就地测量了具有各种反射率内壁的环形UV反应器中的FR分布。测试是在水中进行的，其透​​射率在65％到99％之间，并且反应器内壁由石英/铝箔，石英/不锈钢或石英/黑布组成，反射系数确定为80.5％。 ，分别为26.1％和11.1％。结果表明，具有高反射系数的内壁可以导致加权平均FR的显着增加，从而大大提高了反应堆的效率。此外，由于内壁反射的影响，目前使用的FR分布模型对于常用的不锈钢壁的误差可能高达35％。最后，发现FR分布的均匀性强烈取决于内壁的漫反射特性，这可能导致UV反应器中的通量传递分布更好。这项工作在提高模型预测的准确性以及优化高效紫外线反应器的设计方面具有潜在的应用价值。

著录项

  • 来源
    《Water Research》 |2012年第11期|p.3595-3602|共8页
  • 作者

    Mengkai Li; Zhimin Qiang; James R. Bolton; Weiwei Ben;

  • 作者单位

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Enuironmental Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Hai-dian District, Beijing 100085, China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Enuironmental Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Hai-dian District, Beijing 100085, China;

    Department of Civil and Enuironmental Engineering, University of Alberta, Edmonton, AB T6G 2W2, Canada;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Enuironmental Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Hai-dian District, Beijing 100085, 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

    UV reactor; inner-wall reflection; fluence rate distribution; in-situ measurement; micro-fluorescent silica detector;

    机译：紫外线反应器;内壁反射通量率分布现场测量微荧光二氧化硅检测器;

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