| 涡流室式柴油机火用分析 |
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| 引用本文： | 夏兴兰,吴志新,李德桃.涡流室式柴油机火用分析[J].南昌大学学报(工科版),1997(3). |
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| 作者姓名： | 夏兴兰 吴志新 李德桃 |
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| 作者单位： | 南昌大学机械电子工程系，江苏理工大学 |
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| 摘 要： | 应用热力学第二定律，列出了涡流室式柴油机的火用平衡方程根据系统的热力学火用和适合柴油机的热力学死点，以Ｓ１９５柴油机为例，进行火用分析，显示了火用分析的意义，确定了柴油机中各种火用损失的大小结果表明：燃烧过程火用损失，尤其是涡流室中的燃烧过程火用损失是最主要的火用损失根据火用平衡方程定义了柴油机的火用效率和瞬态火用效率，从而有利于判断柴油机不同负荷下工作过程的不可逆程度
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| 关 键 词： | 火用分析，热力学第二定律，涡流室式柴油机 |
Energetic Analysis in a Swirl-charmber Diesel Engine |
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| Xia Xinglan.Energetic Analysis in a Swirl-charmber Diesel Engine[J].Journal of Nanchang University(Engineering & Technology Edition),1997(3). |
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| Authors: | Xia Xinglan |
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| Abstract: | The equation of energy balance of a swirl-charmber diesel engine is presented which is based on the Second Law of Thermodynamics.The energetic analysis in the model of S195 diesel engine is carried out using the thermodynamic energy of a system and the thermodynamic dead state appropriate for the diesel engine.The usefulness of the energetic analysis is demonstrated and the amount of energetic loss in the diesel engine is determinted.The results of the energetic analysis show that the energetic loss during combustion,especially in the swirl-charmber,is the most important energetic loss.An energy efficiency and an instantaneous energy efficiency in the diesel engine are proposed from the equation of the energy balance,and these parameters provide a convenient comparision criterion of irreversibility of the working process in the diesel engine for different power. |
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| Keywords: | energetic analysis Thermodynamic Second Law swirl-charmber diesel engine |
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