This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of ethanol spray behavior into a Single Cylinder Optical Research Engine
Technical Paper
2019-36-0223
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The work focuses on studying ethanol spray behavior injected directly inside a spark ignited internal combustion engine in the compression stroke. An experimental procedure for measuring spray penetration and spray overall cone angle produced by a multi-hole direct injector was developed by means of computational codes written in Matlab environment for working with images of spray injections and to acquire calculated results in an automatic way. The shadowgraph technique with back continuous illumination associated with a high speed recording image process was used in a single cylinder optical research engine for acquiring images of Brazilian ethanol fuel injected at 120° before the top dead center of compression stroke. The process of spray injections occurred with engine speeds of 1000 rpm, 2000 rpm and 3000 rpm. The results showed that spray penetrations decrease and spray cone angle increase when the engine speed is raised. The rising pressure behavior in the compression stroke with the upward air flow induced by piston bowl ascendant movement possible decreased the rate of spray penetrations at the end of injections. In the 2000 and 3000 rpm injection cases the ethanol sprays remained in the superior region of the cylinder and do not wetted any cylinder surface while the spray injected in the 1000 rpm case collided with the piston bowl. Single images of sprays at 110° crank angle before the Top Dead Center of compression stroke for the three engine speed cases were qualitatively analyzed and showed macroscopic shapes very coherent with spray penetration and spray cone angle.
Recommended Content
Authors
- Carlos Alberto Gomes Júnior - Universidade Federal de Itajubá
- Roberto Berlini Rodrigues da Costa - Universidade Federal de Itajubá
- Márcio Expedito Guzzo - Centro Federal de Educação Tecnológica de Minas Gerais
- Rafael Lara Franco - Centro Federal de Educação Tecnológica de Minas Gerais
- Fernando Antonio Rodrigues Filho - Centro Federal de Educação Tecnológica de Minas Gerais
- José Eduardo Mautone Barros - Universidade Federal de Minas Gerais
Citation
Guzzo, M., Barros, J., Júnior, C., Costa, R. et al., "Analysis of ethanol spray behavior into a Single Cylinder Optical Research Engine," SAE Technical Paper 2019-36-0223, 2020, https://doi.org/10.4271/2019-36-0223.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- MAHLE. Advanced Direct Injection Combustion Engine Technologies and Development HUA ZHAO 1 Woodhead Publishing Limited 2010
- BAUMGARTEN , CARSTEN. Mixture Formation in Internal Combustion Engines Hannover Springer 2006
- SONG , JINGEUN , and SUNGWOOK PARK. Effect of Injection Strategy on the Spray Development Process in a Syngle-Cylinder Optical GDI Engine Atomization and Sprays 2015 819 836
- Zhang , Ji , Shanshan Yao , Himesh Patel , e Tiegang Fang An Experimental Study on Gasoline Direct Injection Spray and Atomization Characteristics of Alcohol Fuels and Isooctane Atomization and Sprays 2011 363 374
- Du Y , Yu X , Wang J , Wu H , Dong W. Gu J. Research on combustion and emission characteristics of a lean burn gasoline engine with hydrogen direct-injection International Journal of Hydrogen Energy 2016 41 3240 48
- Roy MK , Kawahara N , Tomita E , Fujitani T Jet-guided combustion characteristics and local fuel concentration measurements in a hydrogen direct-injection spark-ignition engine Proceedings of the Combustion Institute 2013 34 2977 84
- Shi W , Yu X , Zhang H , Li H Effect of spark timing on combustion and emissions of a hydrogen direct injection stratified gasoline engine International Journal of Hydrogen Energy 2016 1 8
- Shudo T , Oba S Mixture distribution measurement using laser induced breakdown spectroscopy in hydrogen direct injection stratified charge International Journal of Hydrogen Energy 2009 34 2488 93
- Zheng , Jianjun , Erjiang Hu , Zuohua Huang , Dezhong Ning , and Jinhua Wang Combustion and emission characteristics of a spray guided direct-injection spar-ignition engine fueled with natura gas-hydrogen blends International Journal of Hydrogen Energy 2011 11155 11163
- Chen , Hao , David L. S. Hung , Min Xu , and Jie Zhong A dynamic thresholding technique for extracting the automotive spark-ignition direct-injection pulsing spray characteristics Journal of Visualization 2014 197 209