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  • Summary & Details

Atomization Effects of Collision Droplets by Dimples for Application to Urea SCR System

尿素SCRシステムへの適用を目的としたディンプルによる衝突液滴の微粒化効果

Detailed Information

Category(J)研究論文

Translation

Category(E)ResearchPaper
Author(J)1) 菊池 飛鳥, 2) 小原 昭, 3) 杉山 直輝, 4) 川本 裕樹, 5) 奈良 祥太朗, 6) 野原 徹雄, 7) 高橋 俊, 8) 落合 成行, 9) 大角 和生, 10) 石川 直也
Author(E)1) Asuka Kikuchi, 2) Akira Obara, 3) Naoki Sugiyama, 4) Yuki Kawamoto, 5) Shotaro Nara, 6) Tetsuo Nohara, 7) Shun Takahashi, 8) Masayuki Ochiai, 9) Kazuo Oosumi, 10) Naoya Ishikawa
Affiliation(J)1) 東海大学大学院,野村マイクロ・サイエンス, 2) 東海大学大学院, 3) 東海大学大学院, 4) 東海大学, 5) 東海大学大学院, 6) 東海大学, 7) 東海大学, 8) 東海大学, 9) いすゞ中央研究所, 10) いすゞ中央研究所
Abstract(J)尿素SCRシステムにおけるNOx浄化効率を向上させるためには,尿素水の微粒化による気化促進が求められる.本研究ではディンプルの深さおよび穴径に注目し衝突液滴の微粒化効果を評価した.高速度カメラによる液滴の可視化と画像解析により,浅い且つ穴径の大きいディンプルが微粒化に有効であることを明らかにした.

Translation

Abstract(E)Vaporization enhancement of a urea water solution for uniform atomization is required to improve the NOx purification efficiency for the urea SCR system. In this study, the atomization effect of the dimple depth and hole diameter were evaluated from critical Weber number, atomized droplets size after impingement, and visualization results at high time resolution. The visualization of droplet behavior using high-speed camera and image analysis confirmed that dimple with shallow and large hole diameters are effective in atomizing impingement droplets.

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