Experimental and analytical study on liquid and vapor penetration of high-reactivity gasoline using a high-pressure gasoline multi-hole injector
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Type
ArticleKAUST Department
Mechanical Engineering ProgramClean Combustion Research Center
Physical Sciences and Engineering (PSE) Division
Date
2019-07-29Online Publication Date
2019-07-29Print Publication Date
2019-12Permanent link to this record
http://hdl.handle.net/10754/658599
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Show full item recordAbstract
Spray penetration length is an important parameter which is of great interest to both experimentalists and modelers. As it affects engine efficiency and emissions, measurement and prediction of spray penetration can significantly benefit engine optimization under various operating conditions. In this study, penetration length was investigated in a pre-burn constant volume combustion chamber using a gasoline multi-hole injector with high reactivity gasoline-like fuel designed explicitly for gasoline compression ignition (GCI) engines. Diffused back illumination (DBI) and shadowgraph were implemented for liquid and vapor phase penetration measurements, respectively. Different pre-burn gas mixtures are compared to investigate the influence of ambient gas properties on gasoline spray penetration under evaporating conditions. The liquid penetration under the gas composition of higher molecular weight tends to be longer. However, the vapor penetration showed insignificant effect under different gas compositions. Ambient gas temperature and gas composition were found to be an essential parameter for liquid phase penetration. Pressure difference was found to affect the vapor penetration length while its influence on liquid phase steady state penetration length at high ambient gas temperature is marginal. Statistical analysis was performed for both liquid and vapor phase penetration lengths, and a prediction model was developed with good agreement to the data under all test conditions.Sponsors
This work was sponsored by Saudi Aramco under the FUELCOM II program and by King Abdullah University of Science and Technology.Publisher
Elsevier BVJournal
Applied Thermal EngineeringAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S1359431119331461ae974a485f413a2113503eed53cd6c53
10.1016/j.applthermaleng.2019.114187