Modelling Spatial Radiative Heat Flux Distribution in a Direct Injection Diesel Engine

In this paper, the spatial distribution of radiative heat flux from a luminous flame to various positions on the cylinder head of a direct injection diesel engine is modelled and the results compared with some published experimental investigations. The model is primarily based on measured pressure d...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy Part A: Journal of Power and Energy, 1994-01, Vol.208 (4), p.275-283
Main Authors: Cheung, C S, Leung, C W, Leung, T P
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Engines and turbines
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
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Summary:In this paper, the spatial distribution of radiative heat flux from a luminous flame to various positions on the cylinder head of a direct injection diesel engine is modelled and the results compared with some published experimental investigations. The model is primarily based on measured pressure data, which are converted into fuel-burned rate data through a single-zone heat-release rate analysis. Coupled with appropriate soot formation and oxidation models, the fuel-burned rate data are converted into the soot contents in the cylinder. By separating the combustion chamber into a burned zone and an unburned zone, the radiation temperature, the absorption coefficient and the spatial distribution of radiative heat flux to the cylinder walls are calculated.
ISSN:0957-6509
2041-2967
DOI:10.1243/PIME_PROC_1994_208_048_02