Dual-injection: The flexible, bi-fuel concept for spark-ignition engines fuelled with various gasoline and biofuel blends
Dual-injection: The flexible, bi-fuel concept for spark-ignition engines fuelled with various gasoline and biofuel blends
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双喷射：灵活的双燃料概念，适用于使用各种汽油和生物燃料混合物的火花点火发动机
DOI：
10.1016/j.apenergy.2011.01.025
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发表时间：
2011-07
期刊：
影响因子：
11.2
通讯作者：
Huang, Zuohua
中科院分区：
文献类型：
--
作者：
Daniel, Ritchie;Richardson, Dave;Wu, Xuesong;Tian, Guohong;Xu, Hongming;Huang, Zuohua
火花点火发动机中的双喷射策略允许在同时结合进气道燃料喷射（PFI）和直接喷射（DI）时以任何混合比在缸内混合两种不同的燃料。根据发动机需求和燃油可用性，任一种燃油均可用作主燃油。本文介绍了这样一个灵活的，双燃料的概念，使用单缸火花点火研究发动机的初步调查。汽油已被用作PFI燃料，而各种质量分数的汽油、乙醇和2，5-二甲基呋喃（DMF）已被用于DI。利用一氧化碳和氧排放浓度的交叉理论，实现了两种不同燃料缸内混合过程中过量空气系数的控制。双喷射的结果表明，体积空气流量，总输入能量和指示的平均有效压力（IMEP）的增加与PFI质量分数的降低，无论DI燃料。当在DI中使用任何乙醇级分时，所指示的效率增加，并且导致与汽油相比更高的燃烧和燃料转化效率。增加DI中DMF的质量分数比增加DI中乙醇或汽油的分数更显著地减少燃烧持续时间。当在DI中使用任何汽油或乙醇馏分时，碳氢化合物（HC）、氮氧化物（NOx）和二氧化碳（CO2）排放量大部分减少。当使用DMF时，HC排放降低，但NOx和CO2排放增加。
Dual-injection strategies in spark-ignition engines allow the in-cylinder blending of two different fuels at any blend ratio, when simultaneously combining port fuel injection (PFI) and direct-injection (DI). Either fuel can be used as the main fuel, depending on the engine demand and the fuel availability. This paper presents the preliminary investigation of such a flexible, bi-fuel concept using a single cylinder spark-ignition research engine. Gasoline has been used as the PFI fuel, while various mass fractions of gasoline, ethanol and 2,5-dimethylfuran (DMF) have been used in DI. The control of the excess air ratio during the in-cylinder mixing of two different fuels was realized using the cross-over theory of the carbon monoxide and oxygen emissions concentrations. The dual-injection results showed how the volumetric air flow rate, total input energy and indicated mean effective pressure (IMEP) increases with deceasing PFI mass fraction, regardless of the DI fuel. The indicated efficiency increases when using any ethanol fraction in DI and results in higher combustion and fuel conversion efficiencies compared to gasoline. Increasing the DMF mass fraction in DI reduces the combustion duration more significantly than with increased fractions of ethanol or gasoline in DI. The hydrocarbon (HC), oxides of nitrogen (NOx) and carbon dioxide (CO2) emissions mostly reduce when using any gasoline or ethanol fraction in DI. When using DMF, the HC emissions reduce, but the NOxand CO2emissions increase.
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影响因子：
5.3
作者：
Shaohua Zhong;Ritchie Daniel;Hongming Xu;Jun Zhang;D. Turner;M. Wyszyński;P. Richards
通讯作者：
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影响因子：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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