| 飞机发动机排气污染物的测量 |
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| 引用本文： | 刘高恩,王华芳,吕品,王志平. 飞机发动机排气污染物的测量[J]. 航空动力学报, 2003, 18(3): 348-352 |
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| 作者姓名： | 刘高恩 王华芳 吕品 王志平 |
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| 作者单位： | 北京航空航天大学能源与动力工程学院,北京 100083 |
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| 摘 要： | 参考国际民航组织（ICAO）颁布的“飞机发动机排放”条例的规定,设计并建立了民用航空发动机排气污染物测量系统,采用自行推算的样气成分“干基”向“湿基”转换的修正公式,编写排放物EI的计算程序。在民航维修基地（AMECO公司）的试车台对二台JT3D-7型发动机进行排气污染物的实测,测出的各类污染物的排放指数EICO,EIHC,EINOx及冒烟数SN,并与JT3D-7型发动机公布的数据进行对比,测量系统的精度按标准规定用燃气分析测出的气油比与发动机实测的气油比进行比较小于10％～15％的均属于合格,本研究的系统的测量值与发动机所测的总气油量之比的误差在3％左右,证明此测量系统和测量技术切实可行。
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| 关 键 词： | 航空、航天推进系统 排放污染 测试技术 燃烧 |
| 文章编号： | 1000-8055(2003)03-0348-05 |
| 收稿时间： | 2002-05-21 |
| 修稿时间： | 2002-05-21 |
Gas Turbine Engine Emissions Measurement |
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| LIU Gao-en,WANG Hua-fang,LU Pin and WANG Zhi-ping. Gas Turbine Engine Emissions Measurement[J]. Journal of Aerospace Power, 2003, 18(3): 348-352 |
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| Authors: | LIU Gao-en WANG Hua-fang LU Pin WANG Zhi-ping |
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| Affiliation: | Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | With reference to " Aircraft Engine Emissions" promulgated by the convention on International Civil Aviation,we designed an emission measuring system. Emissions of two JT3D-7 gas turbine engines were measured by means of the system on the test rig of AMECO company. The measured Emissions Index EIco,EIHC,EINOx and SN of these two engines were compared with the JT3D-7 typical EI data. The accuracy of this system is about 3%, which was much better than the ICA's requirement (10%-15%). In the analytical formulations for the EI and AFR parameters of the convention, assumptions were made that all concentration measurements were of the " wet sample". In our practice, the CO2, CO and NOx concentration measurements were made on a "dry" basis. So we derived the corrected formulations for EI and AFR calculations of these engines. The data of experiments were varied in a quite wide range to prove that the sampling and measurement system is acceptable in engineering. |
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| Keywords: | aerospace propulsion system emissions measurement combustion |
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