Abstract Propanol diesel (P100 + D) dual fuel HCCI (DF-HCCI) engine was used to overcome HCCI engine challenges. In the present study, propanol was supplied along with intake air through the carburetor and diesel/butanol blend was injected into the engine cylinder through fuel injector. MFR of propanol was varied using different fuel jets (jet 40, jet 60, jet 70, jet 80, and jet 90) in carburetor. Additionally, the influence of different butanol blends (B10/B20/B30) on the engine performance was examined as a substitute for diesel fuel. Results revealed that increase in MFR of propanol, increases ignition delay (ID) leading to reduce combustion duration (CD) and pressure rise rate (PRR), which assist to reduce NOX emissions and smoke opacity compared to baseline diesel engine. From the optimization, it was concluded that jet 60 and jet 70 were appropriate for 20% and 40% load respectively, although jet 90 was appropriate for 60%, 80%, and 100% load conditions. On average 67.64% diesel can be replaced by propanol in optimized P100 + D DF-HCCI engine. Further, in place of diesel fuel, butanol blends (B10/B20/B30) are supplied through injector to ignite propanol DF-HCCI engine. The results showed that NOX and CO emissions are reduced compared to P100 + D DF-HCCI engine.

中文翻译：

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丙醇双燃料 HCCI 发动机性能的实验研究：丙醇质量流量的优化、丁醇混合物 (B10/B20/B30) 作为柴油替代燃料的影响

摘要 丙醇柴油 (P100 + D) 双燃料 HCCI (DF-HCCI) 发动机用于克服 HCCI 发动机挑战。在本研究中，丙醇与进气一起通过化油器供应，柴油/丁醇混合物通过燃料喷射器注入发动机气缸。在化油器中使用不同的燃料喷射（喷射 40、喷射 60、喷射 70、喷射 80 和喷射 90）改变丙醇的 MFR。此外，研究了不同丁醇混合物 (B10/B20/B30) 作为柴油燃料的替代品对发动机性能的影响。结果表明，丙醇 MFR 的增加会增加点火延迟 (ID)，从而减少燃烧持续时间 (CD) 和压力上升率 (PRR)，与基线柴油发动机相比，这有助于减少 NOX 排放和烟雾不透明度。从优化来看，得出的结论是，jet 60 和 jet 70 分别适用于 20% 和 40% 的负载，而 jet 90 则适用于 60%、80% 和 100% 的负载条件。在优化的 P100 + D DF-HCCI 发动机中，平均 67.64% 的柴油可以被丙醇替代。此外，代替柴油燃料，丁醇混合物 (B10/B20/B30) 通过喷射器供应以点燃丙醇 DF-HCCI 发动机。结果表明，与 P100 + D DF-HCCI 发动机相比，NOX 和 CO 排放量有所降低。