This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Study of Dimethyl Ether(DME) Flow in Diesel Nozzle
Technical Paper
2004-01-0081
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Dimethyl ether (DME) holds promise as an alternative to diesel fuel. However, its physical properties are not similar to those of conventional diesel fuel. The P-V, bulk modulus and viscosity of DME are derived as a function of temperature and pressure. As a result, the Weber and Reynolds number of DME is very large as compared with that of diesel fuel. So, the spray characteristics of DME are not those of a liquid spray but similar to those of gas spray. The spray formation is strongly affected by the fuel flow in the nozzle. The Computational Fluid Dynamics (CFD) and experiments are examined to analyze the fuel flow in the nozzle. The DME physical properties make some difference to the flow in the nozzle, in comparison with those of diesel. As a CFD result, cavitation in the injection nozzle is more frequent with DME than with diesel oil. From experimental results, the temperature in the nozzle sac is higher with DME than with diesel oil. The state of DME in the sac changes from gaseous, liquid and to super-critical during injection. Frequent cavitation and the state change make DME a poor spray penetration characteristics at high engine speed and load.
Recommended Content
Authors
Citation
Kato, M., Takeuchi, H., Koie, K., Sekijima, H. et al., "A Study of Dimethyl Ether(DME) Flow in Diesel Nozzle," SAE Technical Paper 2004-01-0081, 2004, https://doi.org/10.4271/2004-01-0081.Also In
Compression Ignition Engine Performance for Use With Alternate Fuels
Number: SP-1825; Published: 2004-03-08
Number: SP-1825; Published: 2004-03-08
References
- Wakai Kensuke Nishida Keiya Yoshizaki Takuo Hiroyasu Hiroyuki “Spray Characteristics of Dimethyl Ether Injected from a D.I. Injection Nozzle” JSAE 41 47 30 1 January 1999
- Seto Takeshi Yanagisawa Naoki Nishitoh Masaaki Tokumura Takeshi Shirota Kazuhiko “Development of the Dimethyl Ether Vehicle” JSAE Proceeding No.48-02, 20025112
- Kajitani Shuichi Chen Zhili L. Kubota Toshikazu Konno Mitsuru Kato Hideto Oda Yuji “A study of compression ignition engines operated with dimethyl ether” JSAE Proceeding, No.48-02, 20025032
- Oda Yuji Endo Hiroyuki Kajitani Shuichi Suzuki Shinichi “Characteristics of Spray Formation and Combustion in Diesel Engines Operated with Dimethyl Ether” The 17 th Internal Combustion Engine Symposium Japan
- Kajitani Shuichi Chen Zhili L. Kubota Shunichi Kato Hideto Kato Masaaki “Fundamental research of DME diesel engine operated with a common rail injection system” International Symposium on Alcohol Fuels(ISAF )
- Reid Robert C. Prausnitz John M. Poling Bruce E. “The properties of GASES & LIQUIDS” McGraw Hill International Editions Chemical Engineering Series Fourth
- Teng Ho McCandless James C. Schneyer Jeffery B. “Thermochemical Characteristics of Dimethyl Ether - An Alternative Fuel for Compression-Ignition Engines” SAE paper 2001-01-0154
- Teng Ho McCandless James C. Schneyer Jeffery B. “Viscosity and Lubricity of (Liquid) Dimethyl Ether - An Alternative Fuel for Compression-Ignition Engines,” SAE 2002-01-0862
- Kato Masaaki Kano Hiroyuki Date Kenji Oya Takio Niizuma Keiichiro “Flow Analysis in Nozzle Hole in Consideration of Cavitation” SAE 970052
- Arcoumanis C. Flora H. Gavaises M. Kampanis N. Horrocks R. “Investigation of Cavitation in a Vertical Multi-Hole Injector,” SAE 1999-01-0524
- Okajima Masahiro Kato Masaaki Kano Hiroyuki Tojo Shigeki Katagiri Makoto “Contribution of Optimum Nozzle Design to Injection Rate Control,” SAE 910185
- Baz Ihab Chmpoussin Jean-Claude Lance Michel Marie Jean-Louis “Investigation of the Cavitation in High Pressure Diesel Injection Nozzles,” 2002 ASME
- Hiroyasu Hiroyuki Arai Masataka “Structures of Fuel Sprays in Diesel Engines” SAE 9004752
- Teng Ho McCandless James C. Schneyer Jefferey B. “Compression Ignition Delay (Physical + Chemical) of Dimethyl Ether-An Alternative Fuel for Compression-Igniton Engines” SAE 2003-01-0769
- Shimizu Masanori Arai Masataka Hiroyasu Hiroyuki “Disintegrating Process of a High Speed Liquid Jet,” JSME 54 504 August 1988 2236 2244
- Sidu Xu Mingfa Yao Junfeng Xu “An Experimental Investigation on the Spray Characteritics of Dimethyl Ether(DME)” SAE 2001-01-0142
- Oya Takio Kobayasi Kiyosi Kato Masaaki Yoda Toshiyuki Sasaki Satoru “A Non-dimensional Analysis of Hydrodynamics in a Swirl Injector” JSAE No.20014442 32 3 43 49 July 2001
- Kato Masaaki Takeuchi Hisaharu Koie Kazutoshi Sekijima Hitoshi Kajitani Shuichi Chen Zhili L. Hashimoto Satoshi “A Study of Low Critical Fuel Flow in Nozzle” SAE 2003-01-1923 , JSAE20030079