| 增压稀燃天然气掺氢发动机排放特性 |
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| 引用本文： | 马凡华,王业富,汪俊君,丁尚芬,代称程.增压稀燃天然气掺氢发动机排放特性[J].内燃机工程,2009,30(5). |
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| 作者姓名： | 马凡华 王业富 汪俊君 丁尚芬 代称程 |
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| 作者单位： | 1. 清华大学,汽车安全与节能国家重点试验室,北京,100084
2. 东风汽车有限公司,商用车技术中心,十堰,442000 |
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| 基金项目： | 国家"八六三"高技术研究发展计划节能与新能源汽车重大专项 |
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| 摘 要： | 为了研究20%掺氢比的增压稀燃天然气掺氢(HCNG)发动机的排放特性,通过对发动机进行了空燃比和点火提前角调整试验、ETC循环测试试验和加装氧化型催化器试验,获得了20%HCNG发动机的排放规律.CH4排放随着空燃比的增大先减少后增加;CO排放在高于理论空燃比后骤减;Nox排放随着空燃比的增大先增加后减少,在空燃比19～21 左右达到最大值,1600～1800r/min时最低.CO、Nox随着点火提前角的增大而增加;CH4随着点火提前角的增大略有增加,并且点火提前角越大,对CH4排放的影响越小.加装催化器后,CO、CH4的转化效率均＞90%.试验结果表明:增压稀燃和氧化型催化器相结合是天然气掺氢发动机节能减排的有效方案.
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| 关 键 词： | 内燃机 增压稀燃 天然气掺氢发动机 排放 氧化型催化器 |
Emission Characteristic of Turbocharged Lean Burn HCNG Engine |
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| MA Fan-hua,WANG Ye-fu,WANG Jun-jun,DING Shang-fen,DAI Chen-cheng.Emission Characteristic of Turbocharged Lean Burn HCNG Engine[J].Chinese Internal Combustion Engine Engineering,2009,30(5). |
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| Authors: | MA Fan-hua WANG Ye-fu WANG Jun-jun DING Shang-fen DAI Chen-cheng |
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| Affiliation: | MA Fan-hua1,WANG Ye-fu1,WANG Jun-jun1,DING Shang-fen1,DAI Chen-cheng2(1.State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China,2.Commercial Vehicle Technical Center,Dongfeng Motor Company Limited,Shiyan 442000,China) |
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| Abstract: | In order to study emission characteristic of turbocharged lean burn HCNG engine with adding 20 % hydrogen,an experimental research on the influence of air fuel ratio,spark ignition timing and oxidation catalyst converter was conducted.The result shows that NOx emissions increase initially and then decrease as the air fuel ratio increases.The highest NOx emission value occurs at air fuel ratio of 19~21 while the lowest NOx emission value occurs at 1 600~1 800 r/min engine speed.CO emissions suddenly decrease... |
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| Keywords: | IC engine turbocharged lean burn HCNG engine emissions oxidation catalyst converter |
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