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Spray Modeling for Diesel Engine Performance Analysis
Technical Paper
2009-01-0835
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The work aims at developing and setting up a model able to predict the diesel spray evolution to be integrated into a complete thermodynamic model of the engine. Previous papers have been devoted to realize a numerical model for the injection system, in which a lumped parameter + one-dimensional approach is employed. Such a model has been now enhanced by introducing a quasi-dimensional model for fuel break up, diffusion and penetration processes. A self-developed heating sub-model is included in the model, which enables the evaluation of the influence of the fuel properties on the evaporation process. As a result, the injection system simulation model gives indications on the spray formation process and it is used into a lumped parameter model of the combustion process. Results concerning the influence of fuel properties on the evaporation process are presented and discussed, pointing out its effect on engine performance.
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Citation
Chiatti, G., Chiavola, O., and Palmieri, F., "Spray Modeling for Diesel Engine Performance Analysis," SAE Technical Paper 2009-01-0835, 2009, https://doi.org/10.4271/2009-01-0835.Also In
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