This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Ethanol Ratio and Temperature on Gasoline Atomizing Using Local-Contact Microwave-Heating Injector
Technical Paper
2011-32-0582
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Improvement of atomization process is one of the most effective methods to promote the cold-start period of an internal combustion engine (ICE) using port fuel injector (PFI). In this paper authors present a fuel heating method using microwave energy through the local-contact microwave-heating injector (LMI) to enhance the properties of fuel sprays in such a risky working area of ICE.
Temperature and mixing ratios of blended fuel are varied and characteristics of atomization are investigated. The fuel using in experiments is blended fuel of gasoline and ethanol, the mixing ratio is varied among 0 (E0), 5 (E5), 50 (E50), and 100 (E100) percentages in volume ratio of ethanol. The temperature of the fuel is measured just before the injection by using K-typed sheath thermo-couple. Spray characteristics measured are Sauter Mean Diameter (SMD), droplet size distribution, spray cone angle, and particle size distribution width. The SMD and the droplet size distribution are measured by using laser diffraction method. The spray cone angle is measured through pictures of actual appearance atomization.
The results show that, the higher percentage of ethanol in the blended fuel the higher temperature the fuel can reach, except the case mixing ratio of 0% ethanol, in which fuel temperature still remain no matter how is the heating duration. At each blended amount of ethanol, except E0, all of the spray atomization measured and analyzed characteristics show the clear improvements with the increase of fuel temperature.
Recommended Content
Authors
Topic
Citation
Tran, T., Enomoto, H., Nishioka, K., Kushita, M. et al., "Effects of Ethanol Ratio and Temperature on Gasoline Atomizing Using Local-Contact Microwave-Heating Injector," SAE Technical Paper 2011-32-0582, 2011, https://doi.org/10.4271/2011-32-0582.Also In
References
- Yamazaki, Nobuyuki Miyamoto, Noboru Akira, Murakami Effects of spray characteristics on diesel engine performance and fuel heating (Japanese version) Proceedings of JSME (Part B) 49 444 1810 1818 1983
- Takashi, Tsuruga Sudo, Hideo Iwai, Nobuo Improvement of atomization by decompression boiling of methanol fuel for cars and engine performance (Japanese version) Car technology bulletin 34 1 4 8 1980
- Mitsuru Nakayama Takashi, Arai Measurement of local droplet size by laser diffraction: 1 st report, spray property in heat flow JSME proceedings 49 442 1270 1278 1980
- Murase, Eiji Nakama, Kenjiro Toyota, Shunji Visualization of the temperature effect on fuel for gasoline direct-injection spray swirl DAISHO JSME proceedings 69 688 2003 12
- Enomoto, Hiroshi Iida, Tetsuya Noboru, Hieda Akiko, Imai Hitoshi, Hara “Influence of fuel temperature on liquid droplet distribution area (evaluation by simple image processing) with local-contact microwave-heating injector” JSME, Part B 740 74 930 935 2008
- Enomoto, Hiroshi Tetsuya, Iida Noboru, Hieda Akiko, Imai “Influence of microwave strength on temperature distribution of ethanol heating using coax heating device” JSDE 43 6 339 344 2008
- Enomoto, Hiroshi Tetsuya, Iida “Development of fuel injector using local contact microwave heating” JSDE 44 2 112 115 2009
- Enomoto, Hiroshi Tetsuya, Iida “Effect of microwave heating on the spray droplet size distribution by using local contact microwave hating injectors” JSAE 40 3 769 774 2009
- Poling, Bruce E. Prausnitz, John M. O'Connell, John P. The properties of Gases and Liquids Fifth McGraw-Hill 2004
- Huong, Tran Thi Thu Enomoto, Hiroshi Kushita, Motoki Sakitsu, Takaaki “Effect of Fuel Temperature on Spray Properties using Local-contact Microwave-heating Injector” FISITA2010-SC-0-16 2010