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Simulation of the HCCI Combustion Based on Single-Zone Combustion Model
Abstract:
A single-zone HCCI combustion model coupled with chemical reaction kinetics mechanisms was set up by AVL-BOOST and CHEMKIN module based on a variable lift and timing (VLT) gasoline. In order to achieve HCCI combustion, the negative valve overlap (NVO) strategy was used to raise the temperature of mixed air in the simulation. In this paper, the HCCI combustion was compared with the conventional SI combustion, then the feasibility of using single-zone model to simulate the HCCI combustion was verified and the HCCI operation region was predicted under specific speed, compression ratio, air-fuel ratio conditions by this model.
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Pages:
1335-1339
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Online since:
December 2012
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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