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An Investigation of Biofuel Spray Characteristics Using High-Speed Photographic Technology
Published January 01, 1998 by Institution of Mechanical Engineers in United Kingdom
A great deal of research on the use of rapeseed methyl ester (RME, also known as biodiesel) has been carried out. Current research focuses on engine performance and emissions and the published results vary and often conflict with each other. It is known that the performance of a direct-injection (DI) diesel engine is greatly affected by the injection and spray characteristics which are influenced by the injection system design and fuel properties.
This paper presents a study comparing the characteristics of atomization sprays of diesel fuel and RME oil. Tests were conducted using a noncombusting bomb and a high-speed camera to film the atomization phenomena. These test results are presented, and additional mathematical regression is used to demonstrate the difference in spray formation between the diesel fuel and RME oil. Suggestions are made to optimize fuel injection systems for using RME oil on direct-injection diesel engines and other design issues are also discussed.