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首页> 外文期刊>International Journal of Marine Engineering Innovation and Research >Experimental Analysis of Gas Split Injection Effect on Dual-Fuel Engine Performance
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Experimental Analysis of Gas Split Injection Effect on Dual-Fuel Engine Performance

机译：天然气分流注射效应对双燃料发动机性能的实验分析

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摘要

the application of a dual-fuel engine has massively been used as the main engine. However, in dual-fuel engine operations, problems occur in low-load operations. The combustion quality with unstable combustion conditions and relatively low thermal efficiency. In this research, a gas split injection strategy was implemented on the dual-fuel engine. The purpose of this research is to compare the performance of the engine between dual-fuel operations using gas split injection strategy and single injection. Furthermore, split injection is a fuel injection system by dividing the injection into several injection stages with a certain mass and period. This injection system was applied on a dual-fuel engine system, which was previously a modification of the conventional diesel Yanmar TF 85 MH. The variation in this study is the injection split ratio (ISR) 75-25, variations in injection time, and variations in load with specified engine speed at 2000 RPM. The results obtained in this study are the best variations found in ISR 75-25 gas split injection with injection distance at 260°bTDC & 244°bTDC. Due to the injection distance, a significant difference occurred in all parameters tested between single injection and split injection. The significance of the difference in power, torque, BMEP, SFOC, and the thermal efficiency only occurs at 100% load, which is 4.3%; 4.2%; 4.2%; 16%; 18.3%.
机译：双燃料发动机的应用大量用作主发动机。然而，在双燃料发动机操作中，在低负载操作中出现问题。燃烧质量具有不稳定的燃烧条件和相对低的热效率。在该研究中，在双燃料发动机上实施了气体分流注射策略。本研究的目的是使用气体分流喷射策略和单射流进行双燃料操作之间的发动机的性能。此外，通过将注射分成几个具有特定质量和时段的若干注射阶段，分流注射是燃料喷射系统。该喷射系统应用于双燃料发动机系统，先前是传统柴油yanmar tf 85mh的修改。该研究的变化是注射分流比（ISR）75-25，注射时间的变化，以及2000 rpm的指定发动机速度的负载变化。本研究中获得的结果是ISR 75-25天然气分体喷射中的最佳变化，注射距离在260°BTDC＆amp; 244°BTDC。由于注射距离，在单喷射和分流之间测试的所有参数中发生了显着差异。功率，扭矩，BMEP，SFOC差异和热效率的意义仅在100％负载下发生，这是4.3％; 4.2％; 4.2％; 16％; 18.3％。

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