| 大气环境对增压柴油机缸内燃烧特性的影响 |
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| 引用本文： | 郭猛超,王宪成,常强.大气环境对增压柴油机缸内燃烧特性的影响[J].柴油机,2011,33(1):9-13. |
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| 作者姓名： | 郭猛超 王宪成 常强 |
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| 作者单位： | 郭猛超,王宪成,Guo Mengchao,Wang Xiancheng(装甲兵工程学院机械工程系,北京,100072);常强,Chang Qiang(军事交通学院指挥系,天津,300161) |
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| 摘 要： | 在试验校准的基于GT-POWER的平原环境柴油机工作过程模型基础上,模拟大气环境对增压柴油机输出性能和燃烧特性的影响.计算结果表明:海拔高度从0～4000 m,在外特性工况下,柴油机功率最大下降14%,油耗增加近10%,排气温度最大升高100 ℃,后燃严重;4000 m海拔和0 m相比,缸内燃烧放热率重心最大拖后7℃A...
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| 关 键 词： | 增压柴油机 大气压力 燃烧特性 |
| 收稿时间： | 2010/4/1 0:00:00 |
Combustion Characteristics of Turbocharged Diesel in Different Atmosphere Environment |
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| Guo Mengchao,Wang Xiancheng and Chang Qiang.Combustion Characteristics of Turbocharged Diesel in Different Atmosphere Environment[J].Diesel Engine,2011,33(1):9-13. |
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| Authors: | Guo Mengchao Wang Xiancheng and Chang Qiang |
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| Affiliation: | Guo Mengchao1,Wang Xiancheng1,Chang Qiang2 (1.Department of Mechanical Engineering,Academy of The Armored Force Engineering,Beijing 100072,2.Department of Automobile Command,Academy of Military Transportation,Tianjin 300161) |
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| Abstract: | Based on the calibrated GT-POWER model which focuses on working process of diesel engine in plain area,the influence of atmosphere on turbocharged diesel engine’s output power and combustion characteristics are simulated.The results show: under external characteristics operating conditions,power reduces 14% mostly,fuel consumption increases 10%,exhaust temperature increases 100 ℃ the most,after-combustion is serious;when the altitude is from 0m to 4 000 m,the center of gravity of heat release rate delays 7℃A,HRRmax reduces 0.009 kJ/℃A,pmax reduces 1.6MPa,Tmax increases 220℃ above;under 1 400r/min,full load,the pmax and in-cylinder average temperature reach the highest level,when the engine speed increases,the velocity of HRR(heat release rate)gets lower;when the load increases,HRR increases,the combustion point is advanced.The simulation results supply a research foundation for power recovery and performance improvement of turbocharged diesel engine working in plateau area. |
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| Keywords: | turbocharged diesel atmosphere pressure combustion characteristic |
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