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Emission Prediction with Detailed Chemistry Toyota Motor North America, Research and Development
- Format:
- Book
- Conference/Event
- Author/Creator:
- Shieh, Tenghua, author.
- Conference Name:
- 2019 JSAE/SAE Powertrains, Fuels and Lubricants (2019-08-26 : Kyoto, Japan)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2019
- Summary:
- Numerical modeling of engine combustion products requires detailed chemistry and therefore large computational resources and time. This becomes a constraint when engine optimization at system level is desired. In this paper, a 1D modeling approach is proposed for fast computation to predict emission level at various engine running conditions. A new chemical solver within 1D framework is developed along with suitable reduced chemical mechanism. The reduced reaction scheme is validated against detailed chemistry on 0D and 1D reactors. It is confirmed that the new fast 1D solver achieves more than 100X speed improvement. Now larger mechanisms can be used for better accuracy with reasonable turnaround time. This methodology allows virtual engine emission map generation, with a refined emission map completed within 12 hours of computational time. When a transient response is considered, the critical first 600 seconds of FTP driving cycle is calculated within 1 hour, based on a reduced fast running 1D model
- Notes:
- Vendor supplied data
- Publisher Number:
- 2019-01-2215
- Access Restriction:
- Restricted for use by site license
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