转速拓展下喷油策略对柴油机低负荷预混燃烧的影响
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范超, 鹿盈盈, 刘一泽
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Effect of Injection Strategy on Low Load Premixed Combustion of a Diesel Engine in Engine Speed Extension
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FAN Chao, LU Yingying, LIU Yize
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表3 低转速优化方案
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Tab.3 Low speed optimization scheme
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| 方案 | R/% | φCA/(°)
(P2SOI/D2/P1SOI/D1/MSOI/D) | N/[g·(kW·h)-1] | C/[g·(kW·h)-1] | E/% | | 基准工况 | 0 | 0/0/0/0/-15/4.1 | 5.92×10-2 | 1.02×10-4 | 51.99 | | 对比工况1 | 60 | 0/0/-30/1.6/-20/1.1 | 6.65×10-2 | 4.21×10-4 | 32.92 | | 对比工况2 | 40 | 0/0/-30/1.1/-20/1.6 | 7.87×10-2 | 7.77×10-4 | 39.02 | | 优化方案1 | 0 | 0/0/0/0/-11/4.1 | 1.89×10-2 | 2.21×10-4 | 54.40 | | 优化方案2 | 60 | 0/0/-21/1.6/-11/1.1 | 1.10×10-1 | 4.99×10-5 | 46.58 | | 优化方案3 | 40 | 0/0/-20/1.1/-10/1.6 | 3.64×10-2 | 1.13×10-5 | 60.65 | | 优化方案4 | 20+20 | -20/0.6/-13/0.6/10/1.6 | 2.76×10-2 | 2.73×10-5 | 60.00 |
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