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首页> 外文期刊>Fuel >Performance and emission predictions of a CRDI engine powered with diesel fuel: A combined study of injection parameters variation and Box-Behnken response surface methodology based optimization
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Performance and emission predictions of a CRDI engine powered with diesel fuel: A combined study of injection parameters variation and Box-Behnken response surface methodology based optimization

机译：CRDI发动机的性能和排放预测用柴油燃料：注射参数变化的组合研究和Box-Behnken响应表面方法的优化

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The operating mode of reactivity-controlled compression ignition appears as an effective technique for improving the engine's efficiency and emission reduction. This study investigates the emission and combustion characteristics of diesel engines operating under the reactivity-controlled compression ignition mode. The primary objective of this research is to examine the effect of fuel injection timings (7.5, 12.5 and 17.5 bTDC) and injection pressure (500 and 1000 bar), experimental testing is carried out on single cylinder water-cooled testing engines at constant speed of 1500 rpm with variable engine load (16, 20 and 24 Nm). In case of a fuel injection pressure of 1000 bar, the maximum brake specific fuel consumption of 0.42 kg/kWh is registered with a brake mean effective pressure of 3.2 bar. In this experimental study, Box-Behnken based response surface methodology was used to predict the optimal input parameters, resulting in the optimal combination of output and emission parameters. In addition, a statistically relevant test analysis of variance has been developed to obtain a 'regression model.' Results have shown that the proposed 'Regression Model' is ideally suited to 0.095 standard deviation, 0.972 modified R2 and 18.482 acceptable accuracy. This analysis also attempts to describe the application of the response surface methodology analysis to optimize the emission and performance parameters.
机译：反应性控制压缩点火的操作模式看起来是改善发动机效率和减排的有效技术。本研究研究了在反应性控制压缩点火模式下运行的柴油发动机的发射和燃烧特性。本研究的主要目的是检查燃料喷射定时（7.5,12.5和17.5 BTDC）和注射压力（500和1000AR）的影响，实验测试以恒定的速度在单缸水冷测试发动机上进行1500 RPM具有可变发动机负载（16,20和24 nm）。在燃料喷射压力为1000杆的情况下，在3.2巴的制动器平均有效压力下，最大制动燃料消耗为0.42kg / kWh。在该实验研究中，基于Box-Behnken的响应面方法用于预测最佳输入参数，导致输出和发射参数的最佳组合。此外，已经开发出统计上相关的差异测试分析以获得“回归模型”。结果表明，拟议的“回归模型”理想地适用于0.095标准偏差，0.972修饰R2和18.482可接受的准确性。该分析还试图描述响应面方法分析的应用，以优化发射和性能参数。

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