Studies on Combustion Nuclei

燃烧核研究

• 批准号: 60550404
• 负责人: FUJII Shuji
• 金额: $ 1.41万
• 依托单位: TOKYO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550404/
• 关键词: combustion nuclei; submicron particles; 凝集; ブラウン拡散

It is important to study the concentration and size distribution of submicron particles in the atmosphere because of their great influence on air pollution, meteorological phenomena, high purity of industrial and biological clean rooms, etc. The atmospheric particles vary widely in composition and size. The change of size distribution is considered to be caused by coagulation, settling, diffusion and other kinematic phenomena.In this study, continuous measurements of submicron particles in urban air and measurements of submicron particles generated by combustion are conducted. This study presents continuous measurements of submicron particles in urban air by using three type counters. The peak size and the changes of size distribution are discussed. The results show that coagulation is one of the effective kinematic phenomena for the change of size distribution. Furthermore, measurements of submicron particles generated by combustion are conducted in an experimental chamber and the results are described in terms of coagulation. The changing characteristics of size distribution are similar to that of submicron particles in atmosphere.

由于亚微米颗粒物对大气污染、气象现象、工业和生物洁净室的高洁净度等有很大影响，研究其在大气中的浓度和粒径分布具有重要意义。粒径分布的变化被认为是由凝聚、沉降、扩散等运动学现象引起的，本研究对城市空气中的亚微米颗粒物进行了连续测量，并对燃烧产生的亚微米颗粒物进行了测量。本文介绍了用三种计数器连续测量城市空气中亚微米颗粒物的方法。讨论了峰的大小和粒度分布的变化。结果表明，凝聚是改变颗粒粒度分布的有效运动学现象之一。此外，在实验室中进行的测量燃烧产生的亚微米颗粒，并在凝聚方面的结果进行了描述。其粒径分布的变化特征与大气中亚微米颗粒物相似。

项目成果

藤井,他: 日本建築学会大会学術講演梗概集. 387-388 (1986)

Fujii 等人：日本建筑学会会议学术讲座摘要 387-388 (1986)。

S.FUJII, etc.: "Studies on Submicron Particulates from the Viewpoint of Air Pollution. Part 1. Measurement of Exhaust Gas from Combustion" Summaries of Technical Papers of Annual Meeting, AIJ of JAPAN. 299-300 (1985)

S.FUJII等：“从空气污染角度研究亚微米颗粒物。第1部分：燃烧废气的测量”日本AIJ年会技术论文摘要。

S.FUJII;etc.: Proceedings of the 8th International Symposium on Contamination Control. 8. 114-118 (1986)

S.FUJII；等：第八届国际污染控制研讨会论文集。

S.FUJII, etc.: "Studies on Combustion Nuclei from the Viewpoint of Air Pollution." Summaries of Technical Papers of Annual Meeting, AIJ of JAPAN. 387-388 (1986)

S.FUJII等：“从空气污染的角度研究燃烧核”。

S. FUJII, etc.: "Studies on Submicron Particulates from the Viewpoint of Air Pollution. Part 2. Influences of Exhaust Gas on Air Pollution" Summaries of Technical Papers of Annual Meeting, AIJ of JAPAN. 301-302 (1985)

S. FUJII等：“从空气污染角度研究亚微米颗粒物。第2部分：废气对空气污染的影响”日本AIJ年会技术论文摘要。