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フルテキストURLKJ00000155535.pdf ( 245.4KB ) 公開日 2010-04-19
タイトルスプレータワの集じん性能に関する理論的考察
タイトルヨミスプレー タワ ノ シュウジン セイノウ ニ カンスル リロンテキ コウサツ
タイトル別表記Theoretical studies on the collection efficiency in spray tower
作成者上岡, 豊
川上, 靖
作成者ヨミウエオカ, ユタカ
カワカミ, ヤスシ
作成者別表記Ueoka, Yutaka
Kawakami, Yasushi
作成者所属山口大学工学部
内容記述(抄録等)The spray towers are widely used for the purpose of dust and mist collection, gas absorption and humidification. The scrubbing processes in the spray towers are among the oldest and simplest known to man. A liquid is employed to achieve or assist in the removal of dispersoids from gases. Water is generally employed as the scrubbing agent, and atomized by spray nozzles. A dust-laden gas flows upwards slowly and sprays descend gravitationally. When the gas impinges on a spray sphere, it will be deflected around the spray, where as the dust particles, by virtue of their greater inertia, will tend to be collected on the surface of the spray. The basic principles of impingement can be presented in terms of so-called ”target efficiency”. Target efficiency represents the fraction of particles in the gas volume swept by the spray which will impinge on the spray. Thus, for flow around a spray sphere, as shown in Fig. l, all particles that are inertially carried in the gas between streamlines A and B will be collected on the body and the target efficiency will be (b/D)^2. It can be shown that the target efficiency η will be a function of the dimensionless group K. (eq(2)). While the relationships given by the investigators are somewhat conflicting, the recent values reported by Langmuir and Blodgett are believed to be reliable. (Fig.2). Appling the conception of target efficiency, authors derive the new calculating formula for the collection efficiency by scrubbing in the spray tower. Calculations are performed for some illustrations, and the results reveal that the most effective spray will be 0.5 mm in diameter at air stream.
本文言語jpn
主題機械工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0372-7661
NCIDAN00244228
学内刊行物(紀要等)山口大学工学部研究報告
掲載誌名山口大学工学部研究報告
掲載誌名別表記Memoirs of the Faculty of Engineering, Yamaguchi University
15
1
開始ページ133
終了ページ136
発行日1965
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00000155535
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00000155535