| 热EGR对氢内燃机性能及排放影响的试验研究 |
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| 引用本文： | 孙大伟,刘福水,孙柏刚,周磊.热EGR对氢内燃机性能及排放影响的试验研究[J].内燃机学报,2009,27(2). |
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| 作者姓名： | 孙大伟 刘福水 孙柏刚 周磊 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 氢内燃机燃烧产物与传统内燃机不同,因此其EGR的作用机制与传统内燃机有很大差别.为了研究EGR对氢内燃机的动力性和排放特性的影响规律,以一台4缸2.0 L的氢内燃机为研究对象进行了试验研究,并探讨了缸内燃烧的发展过程和特点.试验表明:在循环喷氢量不变时,可以通过调节EGR率改变混合气的当量燃空比.在当量燃空比小于1时,EGR率的变化对输出转矩影响不大,在当量燃空比超过1后,输出转矩随EGR率的增加线性下降;在小负荷时使用热EGR将导致缸内温度的升高、增大NO
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| 关 键 词： | 氢内燃机 燃烧特性 排气再循环 |
Experimental Study on Performance and Emission of Hydrogen Internal Combustion Engine Using Hot EGR |
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| SUN Da-wei,LIU Fu-shui,SUN Bai-gang,ZHOU Lei.Experimental Study on Performance and Emission of Hydrogen Internal Combustion Engine Using Hot EGR[J].Transactions of Csice,2009,27(2). |
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| Authors: | SUN Da-wei LIU Fu-shui SUN Bai-gang ZHOU Lei |
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| Affiliation: | School of Mechanical and Vehicular Engineering;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | The combustion products of hydrogen internal combustion engine(HICE) are different from those of the traditional engines.The mechanism of exhaust gas recirculation(EGR) applied on HICE is also different from traditional engines.To explore the effect of hot EGR on the performance and emissions,an experimental research was carried out in a 4 cylinder,2.0 L HICE.The combustion characteristic was analyzed to study the EGR mechanism in HICE.The experimental results showed that,when cyclic hydrogen remains consta... |
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| Keywords: | Hydrogen internal combustion engine Combustion characteristic Exhaust gas recirculation |
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