Proposals for organizing the working process of an automotive gas diesel engine
Abstract
A study was carried out using the AVL FIRE software package to assess the effect of the main parameters of the ignition portion of diesel fuel on power, fuel efficiency, maximum cycle pressure and harmful emissions of an automotive gas diesel engine. The influence of the injection advance angle and injection duration, as well as the proportion of the pilot portion of diesel fuel, has been studied. The characteristic of the injection rate of the pilot portion of diesel fuel calculated using the program for modeling the parameters of the fuel system, is presented. Calculations based on the AVL FIRE model show that a decrease in the diesel fuel injection advance angle makes it possible to reduce emissions of nitrogen oxides NOx and unburned methane CH4. An increase in the duration of injection makes it possible to reduce NOx and CH4 emissions with a slight deterioration in performance parameters, and a decrease in the ignition portion of diesel fuel leads to a decrease in NOx emissions.
About the Authors
Vladimir V. Sinyavsky
MADI
Russian Federation
Russian Federation
Ph. D., associate professor
Mikhail G. Shatrov
MADI
Russian Federation
Russian Federation
Ph. D., associate professor
Igor V. Maksimov
MADI
Russian Federation
Russian Federation
postgraduate
Andrey V. Vakulenko
MADI
Russian Federation
Russian Federation
engineer
Leonid N. Golubkov
MADI
Russian Federation
Russian Federation
Dr. Sc., professor
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Review
Рецензент: А.Ю. Дунин, д-р техн. наук, доц., МАДИ
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