| 船用大功率柴油机瞬态工况油气响应及燃烧特性研究 |
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| 引用本文： | 杨凯,霍柏琦,姚晔,石磊,邓康耀.船用大功率柴油机瞬态工况油气响应及燃烧特性研究[J].推进技术,2022,43(1). |
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| 作者姓名： | 杨凯 霍柏琦 姚晔 石磊 邓康耀 |
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| 作者单位： | 上海交通大学,中国人民解放军92537部队,上海交通大学,上海交通大学,上海交通大学 |
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| 摘 要： | 针对船用大功率柴油机瞬态性能提升的需求，本文开展了某增压中冷船用大功率柴油机瞬态工况动态响应及燃烧特性研究。研究表明涡轮增压器惯性导致的进气滞后是柴油机瞬态工况下性能恶化的主要原因；突加载工况下，进气量响应滞后供油量响应4-5个工作循环，且进气量响应速度随初始负荷增加而增加，IMEP等燃烧特征参数加载过程中响应速度较快，波动较小；缸内燃烧过程恶化，CA50、CA90较同负荷下稳态工况值均推迟。
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| 关 键 词： | 船用柴油机 燃烧分析 瞬态工况 动态响应 进气滞后 |
| 收稿时间： | 2020/5/30 0:00:00 |
| 修稿时间： | 2020/10/26 0:00:00 |
Experiment Study on Dynamic Response and Combustion Char-acteristics of Marine High-power Diesel Engine under Transient Conditions |
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| Institution: | Shanghai Jiaotong University,,,Shanghai Jiaotong University, |
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| Abstract: | The dynamic response and combustion characteristics of a supercharged intercooled marine high-power diesel engine under transient conditions are studied for the transient operating perfor-mance of the diesel engine. The study shows that the inertia of the turbocharger leads to the inlet hysteresis, which is the main reason for the deterioration of the performance under transient condi-tions; under the sudden loading condition, the inlet response lags behind the fuel supply response for 4-5 working cycles, and the inlet response speed increases with the increase of the initial load. The CA90 is delayed from the steady-state condition values at the same load. |
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