| 相继增压对某型柴油机性能影响及喷油参数再优化 |
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| 引用本文： | 高占斌,王银燕,胡松,王洋.相继增压对某型柴油机性能影响及喷油参数再优化[J].船舶工程,2015,37(8):17-20. |
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| 作者姓名： | 高占斌 王银燕 胡松 王洋 |
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| 作者单位： | 哈尔滨工程大学 动力与能源工程学院；集美大学 轮机工程学院,哈尔滨工程大学 动力与能源工程学院,哈尔滨工程大学 动力与能源工程学院,哈尔滨工程大学 动力与能源工程学院 |
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| 基金项目： | 国家科技支撑计划(863计划)项目(2012BAF01B01) |
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| 摘 要： | 对某采用相继增压与可控进气涡流复合系统的柴油机建立了缸内仿真模型,分别对可控进气涡流系统和相继增压与可控进气涡流复合系统的燃烧过程进行仿真计算,结果表明,在低工况下后者排气中NOX、Soot的质量分数分别降低了54%和86.1%。并对相继增压与可控进气涡流复合系统柴油机喷油提前角、喷雾锥角进行了再优化仿真计算,结果表明,优化后喷油提前角为20°CA,喷雾锥角为155°。
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| 关 键 词： | 柴油机 相继增压 进气涡流 喷油提前角 喷雾锥角 排放 |
| 收稿时间： | 2015/3/13 0:00:00 |
| 修稿时间： | 2015/8/18 0:00:00 |
Impact of STC on the performance of certain type diesel engine and its injection parameter re-optimization |
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| Institution: | Department o f Energy and Power Engineering,Harbin Engineering University,Department o f Energy and Power Engineering,Harbin Engineering University,Department o f Energy and Power Engineering,Harbin Engineering University,Department o f Energy and Power Engineering,Harbin Engineering University |
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| Abstract: | A certain type of controllable intake swirl(CIS) diesel engine adopted sequential turbocharging (STC) system, and then formed the STC and CIS compounded system diesel engine. The cylinder simulation model is set up, and used to calculate the combustion process of cylinder under CIS system and STC-CIS compounded system respectively. The calculation results show that STC-CIS compounded system can decrease NOx and Soot mass fraction in the exhaust significantly compared with CIS system, in the low working condition. Due to the inlet environment changing, oil-injecting advanced angle and spray cone angle should be optimized for STC-CIS compounded system diesel engine. The cylinder simulation model is calculated with 20°CA, 23°CA and 26°CA oil-injecting advanced angles. The results show that, NOx and Soot mass fraction in exhaust is minimum when the injection advance angle is 20°CA, and so 20 ° CA is the best fuel injection advance angle. The cylinder simulation model is calculated with 160°, 155° and 150° spray cone angles respectively. And the results show that NOx and Soot mass fraction in the exhaust is minimum when the spray cone angle is 155°, and so 155 ° is the best spray cone angle. |
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| Keywords: | diesel engine sequential turbocharging intake swirl injection advance angle spray cone angle emission |
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