| 压缩天然气用于汽车发动机的互换性分析 |
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| 引用本文： | 姚勇,邸敏艳.压缩天然气用于汽车发动机的互换性分析[J].热科学与技术,2006,5(2):184-188. |
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| 作者姓名： | 姚勇 邸敏艳 |
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| 作者单位： | 河北师范大学,机械系,河北,石家庄,050031;河北师范大学,机械系,河北,石家庄,050031 |
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| 摘 要： | 在车用压缩天然气中,甲烷的平均体积分数在87%左右,还含有数量不等的乙烷、丙烷、丁烷和少量的二氧化碳、氢等。这些甲烷以外数量不等的成分对天然气的性能影响很大。根据GB184047-2000,虽属同类气体,但沃泊指数W和燃烧速度指数k变化很大,因此引起发动机的性能和排放发生变化。丁烷对沃泊指数影响最大;乙烷对燃烧速度指数影响最大。
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| 关 键 词： | 沃泊指数 燃烧速度指数 动力性 排放 |
| 文章编号： | 1671-8097(2006)02-0184-05 |
| 收稿时间： | 12 10 2005 12:00AM |
| 修稿时间： | 05 25 2006 12:00AM |
Interconvertibility analysis of compressed nature gas for automobile engine |
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| YAO Yong,DI Min-yan.Interconvertibility analysis of compressed nature gas for automobile engine[J].Journal of Thermal Science and Technology,2006,5(2):184-188. |
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| Authors: | YAO Yong DI Min-yan |
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| Affiliation: | Dept. of Mech. , Hebei Normal Univ. , Shijiazhuang 050031, China |
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| Abstract: | Compressed nature gas(CNG) used in automobile contains about 87% of CH_4 on average.It also contains some C_2H_6,C_3H_8,C_4H_(10) and little CO_2,H_2.These compositions,however,has a great influence on the performance of the nature gas.According to GB184047-2000,different kinds of nature gas vary greatly in Ober number and the combustion velocity and thus affecting the performance of engine power and emission.Among those compositions,C_4H_(10) has the greatest influence on Ober number,whereas C_2H_6 has the greatest influence on the combustion velocity. |
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| Keywords: | Ober number number of combustion velocity power emission |
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