| 基于试验拟合的低速二冲程柴油机放热率经验模型研究 |
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| 引用本文： | 刘博,马天一,钱跃华,石磊,邓康耀.基于试验拟合的低速二冲程柴油机放热率经验模型研究[J].柴油机,2019,41(6):6-9, 21. |
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| 作者姓名： | 刘博 马天一 钱跃华 石磊 邓康耀 |
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| 作者单位： | 中船动力研究院有限公司,上海,200120;上海交通大学高新船舶与深海开发装备协同创新中心,上海,200240 |
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| 基金项目： | 高技术船舶科研计划——船用低速机工程 |
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| 摘 要： | 针对某Tier Ⅲ船用低速二冲程柴油机,开展了负荷、EGR率及喷油参数对放热率及其特征参数的影响研究。研究表明:负荷和轨压是影响燃烧始点的主要因素,负荷、轨压升高使燃烧始点提前;轨压升高及喷油正时提前使CA50提前,指示热效率升高;小EGR率对燃烧过程影响不大,EGR率高于26%后会显著推迟CA50,增大燃烧持续期,降低指示热效率。基于实测放热率对三韦伯函数参数进行了研究,获得了多因素对经验放热模型的作用规律,得到了适用于低速机的经验放热率模型。
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| 关 键 词： | 低速二冲程柴油机 放热率 经验模型 三韦伯函数 |
| 收稿时间： | 2018/12/7 0:00:00 |
| 修稿时间： | 2019/8/7 0:00:00 |
Research on Heat Release Rate Empirical Model of the Low-SpeedTwo-Stroke Engine Based on Experimental Fitting |
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| Liu Bo,Ma Tianyi,Qian Yuehu,Shi Lei and Deng Kangyao.Research on Heat Release Rate Empirical Model of the Low-SpeedTwo-Stroke Engine Based on Experimental Fitting[J].Diesel Engine,2019,41(6):6-9, 21. |
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| Authors: | Liu Bo Ma Tianyi Qian Yuehu Shi Lei and Deng Kangyao |
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| Affiliation: | China Shipbuilding Power Engineering Institute Co, Ltd., Shanghai 200120,Collaborative InnovationCenter for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240,China Shipbuilding Power Engineering Institute Co, Ltd., Shanghai 200120,Collaborative InnovationCenter for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240 and Collaborative InnovationCenter for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240 |
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| Abstract: | |
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| Keywords: | low-speed two-stroke diesel engine heat release rate empirical model three-Wiebe function |
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