Direct water injection to improve diesel spray combustion

Koji Takasaki; Tatsuo Takaishi; Hiroyuki Ishida; Keijirou Tayama

doi:10.1115/ICES2003-0554

Direct water injection to improve diesel spray combustion

Koji Takasaki, Tatsuo Takaishi, Hiroyuki Ishida, Keijirou Tayama

Thermo Fluid Dynamics Division

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Now, it is essential to apply some measures for NOx reduction to low-speed diesel engines emitting much more NOx than high-speed engines. At the same time PM emission must be reduced especially when bunker fuel or heavy fuel is burned. This paper describes the applications of SFWI (Stratified Fuel Water Injection) system and DWI (Direct Water Injection) system to large sized diesel engines to reduce NOx and PM emission. SFWI system makes it possible to inject water during fuel injection from the same nozzle hole without mixing the liquids. DWI system injects water with high injection pressure from the other injection hole than the fuel injection hole into the combustion chamber directly. For testing both the systems, a 2-stroke-cycle low-speed test engine was used.

Original language	English
Pages (from-to)	27-34
Number of pages	8
Journal	American Society of Mechanical Engineers, Internal Combustion Engine Division (Publication) ICE
Volume	40
DOIs	https://doi.org/10.1115/ICES2003-0554
Publication status	Published - Dec 1 2003
Event	Proceedings of the 2003 Spring Technical Conference of the ASME Internal Combustion Engine Division - Salzburg, Austria Duration: May 11 2003 → May 14 2003

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.1115/ICES2003-0554

Cite this

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title = "Direct water injection to improve diesel spray combustion",

abstract = "Now, it is essential to apply some measures for NOx reduction to low-speed diesel engines emitting much more NOx than high-speed engines. At the same time PM emission must be reduced especially when bunker fuel or heavy fuel is burned. This paper describes the applications of SFWI (Stratified Fuel Water Injection) system and DWI (Direct Water Injection) system to large sized diesel engines to reduce NOx and PM emission. SFWI system makes it possible to inject water during fuel injection from the same nozzle hole without mixing the liquids. DWI system injects water with high injection pressure from the other injection hole than the fuel injection hole into the combustion chamber directly. For testing both the systems, a 2-stroke-cycle low-speed test engine was used.",

author = "Koji Takasaki and Tatsuo Takaishi and Hiroyuki Ishida and Keijirou Tayama",

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AU - Takasaki, Koji

AU - Takaishi, Tatsuo

AU - Ishida, Hiroyuki

AU - Tayama, Keijirou

PY - 2003/12/1

Y1 - 2003/12/1

N2 - Now, it is essential to apply some measures for NOx reduction to low-speed diesel engines emitting much more NOx than high-speed engines. At the same time PM emission must be reduced especially when bunker fuel or heavy fuel is burned. This paper describes the applications of SFWI (Stratified Fuel Water Injection) system and DWI (Direct Water Injection) system to large sized diesel engines to reduce NOx and PM emission. SFWI system makes it possible to inject water during fuel injection from the same nozzle hole without mixing the liquids. DWI system injects water with high injection pressure from the other injection hole than the fuel injection hole into the combustion chamber directly. For testing both the systems, a 2-stroke-cycle low-speed test engine was used.

AB - Now, it is essential to apply some measures for NOx reduction to low-speed diesel engines emitting much more NOx than high-speed engines. At the same time PM emission must be reduced especially when bunker fuel or heavy fuel is burned. This paper describes the applications of SFWI (Stratified Fuel Water Injection) system and DWI (Direct Water Injection) system to large sized diesel engines to reduce NOx and PM emission. SFWI system makes it possible to inject water during fuel injection from the same nozzle hole without mixing the liquids. DWI system injects water with high injection pressure from the other injection hole than the fuel injection hole into the combustion chamber directly. For testing both the systems, a 2-stroke-cycle low-speed test engine was used.

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JO - American Society of Mechanical Engineers, Internal Combustion Engine Division (Publication) ICE

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ER -

Direct water injection to improve diesel spray combustion

Abstract

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