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A CFD Study on the Effect of Exhaust Port to the Oxidation of HC in Gaseous Fuel Engine
Author(s): 
Pages: 44-49
Year: Issue:  3
Journal: VEHICLE ENGINE

Keyword:  气体燃料发动机CFDHC氧化甲醛浓度;
Abstract: 利用计算流体力学(CFD)软件耦合详细化学反应机理对气体燃料发动机排气过程中未燃HC在排气道的氧化及对甲醛(CH2O)生成的影响进行了研究.研究表明,未燃HC在排气道存在氧化反应,浓度约减少30%;排气温度对HC氧化和CH2O生成有较大影响;CH2O对HC氧化有促进作用;HC的氧化会使CH2O浓度升高或降低,这取决于CH2O浓度与HC浓度的比值.
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