Investigation on the Measuring Method of Particle Matter Concentration Including Condensed dust in Flue Gas.

• KOGURE Nobuyuki

  National Institute for Resources and Environment (NIRE)

• TAMORI Ikuo

  National Institute for Resources and Environment (NIRE)

• ISHIOKA Osamu

  Japan Quality Assurance Organization

• INOUE Toshiaki

  Air Pollution Control Section of Kawasaki City

• TANIMOTO Takatoshi

  Hyogo Prefacuture Institute of Environmental Science

Bibliographic Information

Other Title

• 凝縮性ダストを含む排ガス中の粒子濃度測定方法の調査研究
• ギョウシュクセイ ダスト オ フクム ハイガスチュウ ノ リュウシ ノウド ソ

Abstract

Condensed dust is generated in the process of cooling and mixing with environmental air and gaseous matter emitted from stationary sources. Currently, the real state of the condensed dust emissions has not been grasped yet, and the authorized measuring method also is not available.<BR>Two kinds of the condensed dust sampling systems were proposed in the current authorized measuring methods registered in the Japanese Industrial Standard. One is the Air-Direct cooling type, in which the sample gas aspirated from a duct is cooled by diluted air, and the other is the Water-Indirect cooling type, in which the sample gas is cooled in a condenser without dilution by air.<BR>Investigation using these sampling systems is conducted at the various types of combustion facilities. The results of the experiments are as follows.<BR>(1) The relation between the Air-Direct cooling type (Y) and the Water-Indirect cooling type (X) is shown by the following formula. Y=0.930X-1.623. The result, that Y is less than X, is caused by the fact of passing of condensed dust through the Type 2 dust filter and absorbing of gaseous matter into the generated drain in a cooled bottle.<BR>(2) In the case of municipal waste incinerators with high water content in flue gas and large changes of gas conditions, the air-direct cooling type caused some troubles such as difficulty of adjestment of the dilution air corresponding to the gas conditions and damage due to humidification of Type 2 dust filter by water content in sample gas. The Air-Direct cooling type is more complex and larger in scale than the Water-Indirect cooling type. Therefore, the Water-Indirect cooling type is considered to be more reasonable and applicable for field measurements.<BR>(3) The generation of the condensed dust depended on the cooling temperature of the sample gas. Therefore, the cooling temprature should be kept to be constant.

Journal

• Journal of Japan Society for Atmospheric Environment / Taiki Kankyo Gakkaishi

  Journal of Japan Society for Atmospheric Environment / Taiki Kankyo Gakkaishi 32 (2), 162-173, 1997

  Japan Society for Atmospheric Environment

Keywords

• Condensed dust
• Dust measuring method
• Dust sampling
• Source dust
• Stationary source

Details

• CRID: 1390282679594349312
• NII Article ID: 130004377171
• NII Article ID: 110003840871
• NII Book ID: AN10512108
• DOI: 10.11298/taiki1995.32.162
• ISSN: 21854335
• ISSN: 13414178
• NDL BIB ID: 4171627
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4171627
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed