Laser diagnostics in a diesel engine

E. J. van den Boom; P. B. Monkhouse; C. M. I. Spaanjaars; W. L. Meerts; N. J. Dam; J. J. ter Meulen

doi:10.1117/12.432897

29 June 2001 Laser diagnostics in a diesel engine

E. J. van den Boom, P. B. Monkhouse, C. M. I. Spaanjaars, W. L. Meerts, N. J. Dam, J. J. ter Meulen

Proceedings Volume 4430, ROMOPTO 2000: Sixth Conference on Optics; (2001) https://doi.org/10.1117/12.432897
Event: ROMOPTO 2000: Sixth Conference on Optics, 2000, Bucharest, Romania

Abstract

Results of laser diagnostics inside a 6-cylinder heavy-duty diesel truck engine are presented. Optical access is obtained by quartz windows mounted in the cylinder head and in the piston. The engine is running on commercial diesel fuel, causing strong attenuation of the UV laser radiation. The sprays are visualized by laser induced fluorescence (LIF) from polycyclic aromatic hydrocarbons present in the diesel fuel. The measurements were focused on the formation of nitric oxide that could be detected by LIF as a function of the crank angle. The fluorescence signals were processed in order to obtain relative NO density curves during the combustion process. Evidence was obtained for the formation of NO between rather than within the spray flames.

Citation Download Citation

E. J. van den Boom, P. B. Monkhouse, C. M. I. Spaanjaars, W. L. Meerts, N. J. Dam, and J. J. ter Meulen "Laser diagnostics in a diesel engine", Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); https://doi.org/10.1117/12.432897

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