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Proceedings Paper

Laser diagnostics in a diesel engine
Author(s): E. J. van den Boom; P. B. Monkhouse; C. M. I. Spaanjaars; W. L. Meerts; N. J. Dam; J. J. ter Meulen
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Paper 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.

Paper Details

Date Published: 29 June 2001
PDF: 14 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432897
Show Author Affiliations
E. J. van den Boom, Univ. of Nijmegen (Netherlands)
P. B. Monkhouse, Univ. of Nijmegen (Netherlands)
C. M. I. Spaanjaars, Univ. of Nijmegen (Netherlands)
W. L. Meerts, Univ. of Nijmegen (Netherlands)
N. J. Dam, Univ. of Nijmegen (Netherlands)
J. J. ter Meulen, Univ. of Nijmegen (Netherlands)


Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics

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