Suggestion of exhaust emission reduction technique based on the effect of air entrainment acceleration of unsteady spray

• Project/Area Number: 26820063
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Thermal engineering
• Research Institution: Kyoto University
• Principal Investigator: Horibe Naoto 京都大学, エネルギー科学研究科, 助教 (90583881)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: ディーゼルエンジン / 非定常噴霧 / アフター噴射 / エミッション低減 / ディーゼル機関 / 少量噴射 / 蒸発噴霧 / 熱機関 / 黒煙 / すす

Outline of Final Research Achievements

A series of experiments was conducted using a single-cylinder diesel engine to investigate the smoke-reduction effect of multiple injection. The experiments were performed under a constant injection quantity condition and under a fixed NOx emission condition. The experimental results were explained using the results of CFD simulation.

Research Products

• [Journal Article] Analysis of Mixture Formation Process in a Diesel Engine with Post Injection (2015)
  • Author(s): Naoto Horibe, Tatsuya Komizo, Yuji Mamizuka, Takashi Sumimoto, Hiroshi Kawanabe, Takuji Ishiyama
  • Journal Title: SAE Technical Paper 2015-01-1836 Volume: 1 Pages: 1-12
  • DOI: 10.4271/2015-01-1836
  • NAID: 120006705779
  • Peer Reviewed
• [Journal Article] 噴射ノズル仕様および燃焼室形状がディーゼル機関におけるアフター噴射の黒煙低減効果に与える影響 (2015)
  • Author(s): 堀部直人，隅本貴，小溝達也，石山拓二
  • Journal Title: 自動車技術会論文集 Volume: 46 Pages: 71-76
  • NAID: 130006319443
  • Peer Reviewed
• [Presentation] 少量噴射時におけるディーゼル噴霧特性に関する研究 (2015)
  • Author(s): 住野友則，包智超，堀部直人，石山拓二
  • Organizer: 日本機械学会2015年度年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2015-09-13
• [Presentation] Analysis of Mixture Formation Process in a Diesel Engine with Post Injection (2015)
  • Author(s): Naoto Horibe, Tatsuya Komizo, Yuji Mamizuka, Takashi Sumimoto, Hiroshi Kawanabe, Takuji Ishiyama
  • Organizer: 2015 JSAE/SAE Powertrains, Fuels & Lubricants Int'l meeting
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2015-09-01
  • Int'l Joint Research
• [Presentation] ディーゼル機関における吸気条件がアフター噴射の黒煙低減効果に与える影響 (2015)
  • Author(s): 隅本貴，王浩，八木政人，堀部直人，石山拓二
  • Organizer: 日本機械学会関西支部第90期定時総会講演会
  • Place of Presentation: 京都大学
  • Year and Date: 2015-03-16 – 2015-03-17
• [Presentation] 少量噴射におけるディーゼル噴霧特性の解析 (2015)
  • Author(s): 植村拓海，住野友則，包智超，堀部直人，石山拓二
  • Organizer: 日本機械学会関西支部第90期定時総会講演会
  • Place of Presentation: 京都大学
  • Year and Date: 2015-03-16 – 2015-03-17
• [Presentation] Smoke Reduction Effects by Post Injection for Various Injection Parameters and Combustion Chamber Shapes in a Diesel Engine (2014)
  • Author(s): Naoto Horibe, Tatsuya Komizo, Takashi Sumimoto, Hao Wang, Takuji Ishiyama
  • Organizer: 2014 SAE International Powertrains, Fuels & Lubricants
  • Place of Presentation: Bermingham
  • Year and Date: 2014-10-20 – 2014-10-23