Abstract In this study, the effects of Reactivity Controlled Compression Ignition (RCCI) application on engine combustion, performance and emissions in a diesel generator were investigated. In the experiments, safflower oil derived biodiesel and diesel mixtures were used as the high reactivity fuel (primary fuel) and gasoline as the low reactivity fuel. The RCCI application was provided by the connection of a secondary fuel injection system with the intake manifold. The gasoline RCCI application rate was 30% and 50% of the total mass fuel consumption of the engine and was pre-mixed as port fuel injection (PFI). Tests were performed at a constant engine load (10.8 kW) and engine speed of 1500 rpm. The purpose of using diesel and biodiesel mixtures is to increase the reactivity of the primary fuel that facilitates the start of the combustion. The combustion, performance and emissions, which are the most important parameters of the engine operation, have been thoroughly investigated and the results were presented. In RCCI application, in peak values of pressure, velocity of heat release, average gas temperature partial increases were determined. When the ratio of gasoline PFI was increased, the NOx emissions significantly decreased and the engine efficiency was also increased, while the CO and HC emissions were slightly increased.

中文翻译：

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使用红花生物柴油混合物对高负荷柴油发电机中汽油反应性控制压燃应用的影响进行研究

摘要 在这项研究中，研究了反应性控制压缩点火 (RCCI) 应用对柴油发电机中发动机燃烧、性能和排放的影响。在实验中，红花油衍生的生物柴油和柴油混合物用作高反应性燃料（初级燃料），汽油用作低反应性燃料。RCCI 应用是通过将二次燃油喷射系统与进气歧管连接来提供的。汽油 RCCI 应用率为发动机总质量燃料消耗的 30% 和 50%，并作为端口燃料喷射 (PFI) 进行预混。测试是在恒定的发动机负载 (10.8 kW) 和 1500 rpm 的发动机转速下进行的。使用柴油和生物柴油混合物的目的是增加初级燃料的反应性，促进燃烧的开始。燃烧、性能和排放是发动机运行中最重要的参数，已经进行了彻底的研究并给出了结果。在 RCCI 应用中，确定了压力峰值、热释放速度、平均气体温度局部增加。当汽油PFI比例增加时，NOx排放显着降低，发动机效率也有所提高，而CO和HC排放略有增加。