| 基于GT-Power的天然气发动机动力性能恢复研究 |
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| 引用本文： | 孙晓娜,张红光,杨凯. 基于GT-Power的天然气发动机动力性能恢复研究[J]. 车用发动机, 2012, 0(2): 46-50 |
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| 作者姓名： | 孙晓娜 张红光 杨凯 |
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| 作者单位： | 1. 北京工业大学环境与能源工程学院,北京100124;承德石油高等专科学校,河北承德067000
2. 北京工业大学环境与能源工程学院,北京,100124 |
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| 基金项目： | 北京工业大学第九届研究生科技基金 |
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| 摘 要： | 利用GT-Power软件建立了4缸火花点火天然气发动机的一维仿真模型,并与试验结果进行了对比,仿真与试验结果一致性较好,证明了模型的准确性。在此基础上为天然气发动机匹配了涡轮增压及中冷系统,计算结果显示,增压后天然气发动机的动力性能明显提高,最大功率和扭矩较原汽油机分别提高了23%和9%,中低转速的有效燃气消耗率明显下降。进行了点火提前角的优化计算,得出了节气门全开条件下的MBT角—转速—空燃比三维MAP图。
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| 关 键 词： | 天然气发动机 动力性能 涡轮增压 点火提前角 匹配 |
Power Performance Recovery of Natural Gas Engine Based on GT-Power |
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| SUN Xiao-na , ZHANG Hong-guang , YANG Kai. Power Performance Recovery of Natural Gas Engine Based on GT-Power[J]. Vehicle Engine, 2012, 0(2): 46-50 |
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| Authors: | SUN Xiao-na ZHANG Hong-guang YANG Kai |
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| Affiliation: | 1(1.College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China;2.Automotive Engineering Department,Chengde Petroleum College,Chengde 067000,China) |
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| Abstract: | The 1-D simulation model of 4-cylinder spark ignition natural gas(NG) engine was built with GT-Power software.Compared with the test results,the simulation results had a good accordance,which verified the accuracy of model.Based on this,the turbocharging and inter-cooling system was matched with NG engine.The results show that the power performance of NG engine improves significantly after turbocharging.The maximum power and torque increase by 23% and 9% respectively,and the efficient gas consumption decreases significantly at medium and low speeds.With the optimization and calculation of ignition advanced angle,3D MAP of MBT angle,engine speed and air fuel ratio at the wide open throttle(WOT) is acquired. |
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| Keywords: | natural gas engine power performance turbocharging ignition advanced angle matching |
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