基于C链分布的乙醇汽油PN排放特性分析
Analysis of PN Emission Characteristics of Ethanol Gasoline Based on C-chain distribution
随着双碳政策推行，节能减排仍是当前之重。乙醇燃料在中期减排替代过程中承担着举足轻重的地位。乙醇燃料组分对于GDI发动机的PN排放的影响重大。基于一款国六发动机（未配备GPF）对不同组分的乙醇燃油进行测试分析，结果表明：气态排放中的THC排放与PN排放呈现正相关，这主要是由于未燃HC是冷凝易形成核态颗粒物，从而导致PN排放的增加；乙醇汽油中降低C7及以下碳数的链烷烃将有助减少PN排放，而C7+的链烷烃是有助于燃料燃烧和降低PN排放；降低乙醇汽油中C…查看全部>>
With the implementation of the dual carbon policy, energy conservation and emission reduction is still the current importance. Ethanol fuel plays an important role in the process of medium-term emission reduction substitution. Ethanol fuel composition has a great influence on PN emission of GDI engine. Based on a China VI engine ( not equipped with GPF ), different components of ethanol fuel were tested and analyzed. The results show that THC emissions in ga…查看全部>>
王长卉;孙运才;郭孔鲁;庞二喜;刘奇峰;孙兴玉;徐林勋;
TK41
Ethanol PN emission Correlation Hydrocarbon Carbon distribution
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