Influence of spray-glow plug configuration on cold start combustion for high-speed direct injection diesel engines
نویسندگان
چکیده
منابع مشابه
Combustion Modeling for Modern Direct Injection Diesel Engines
In order to comply with stringent pollutant emissions regulations, a detailed analysis of the engine combustion and emission is required. In this field, computational tools like CFD and engine cycle simulation play a fundamental role. Therefore, the goal of the present work is to simulate a high speed DI diesel engine and study the combustion and major diesel engine emissions with more deta...
متن کاملcombustion modeling for modern direct injection diesel engines
in order to comply with stringent pollutant emissions regulations, a detailed analysis of the engine combustion and emission is required. in this field, computational tools like cfd and engine cycle simulation play a fundamental role. therefore, the goal of the present work is to simulate a high speed di diesel engine and study the combustion and major diesel engine emissions with more details,...
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We propose a model-based control strategy to adapt the injection settings according to the airpath dynamics of a conventional Diesel engine. This approach complements existing airpath and fuelpath controllers, and aims at accurately controlling the middle of combustion. For that purpose, start of injection is adjusted based on a combustion model and intake manifold conditions. In particular, no...
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The effects of in-cylinder water injection on a direct injection (DI) Diesel engine were studied using a computational fluid dynamics (CFD) program based on the Kiva-3v code. The spray model is validated against experimental bomb data with good agreement for vapor penetration as a function of time. It was found that liquid penetration increased approximately 35% with 23% of the fuel volume repl...
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which are in a nonconservative form. Global conservation is not guaranteed if integration is performed for Eqs. (2) and (3), which do not include PDF inside the temporal and spatial derivatives. On the other hand nonconservative forms allow a relatively coarse mesh since conditional averages show much less spatial dependence than PDF weighted Favre averages. Here η ρ ρ η ≡ and the scalar dissip...
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ژورنال
عنوان ژورنال: Energy
سال: 2011
ISSN: 0360-5442
DOI: 10.1016/j.energy.2011.07.028