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燃油添加剂对柴油机排放影响的试验研究

Keywords: 柴油机,燃油添加剂,排放

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Abstract:

柴油机的扩散燃烧方式会产生较高的烟度排放,在燃油中加入少量的燃油添加剂能够改善燃烧过程降低排放.通过在柴油中添加微量的金属添加剂铈(Ce),并在发动机台架上进行实验,研究了Ce对柴油机排放的影响.实验表明,随着Ce的体积分数由5.0×10-5逐渐增加到1.0×10-4,在整个试验转速区间,HC逐渐降低,最多降低41.6%;在低速区,CO降低,最多降低23.4%,在中高速区,则基本与原机相同;在整个试验转速区间,NOx均高于原机,最多增加18.7%,烟度在低速区低于原机,最多降低36.5%,在中高速区则与原机基本相同.

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