| ZS195柴油机燃用二甲醚(DME)-柴油混合燃料的试验研究 |
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| 引用本文： | 张翠平,杨庆佛,胡真.ZS195柴油机燃用二甲醚(DME)-柴油混合燃料的试验研究[J].内燃机学报,2004,22(4):305-309. |
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| 作者姓名： | 张翠平 杨庆佛 胡真 |
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| 作者单位： | 太原理工大学,机械学院,山西,太原,030024 |
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| 基金项目： | 山西省自然科学基金资助项目(20021057). |
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| 摘 要： | 二甲醚粘度低，会使高压供油系统产生泄漏及早期磨损。在二甲醚中添加低比例的柴油(简称二元燃料)，其柴油既参与燃烧，又相应提高了混合燃料的粘度。首先对二甲醚添加低比例的柴油进行优化并对柴油机供油量、供油提前角和针阀开启压力进行优化匹配，然后对ZS195柴油机燃用二元燃料进行试验研究。结果表明：在ZS195柴油机上燃用二元燃料，其功率和转矩略优于原柴油机，发动机在全负荷范围内接近无烟排放，NOχ大幅度下降。试验还表明，采用这种二元燃料可使供油系统长期稳定地工作。
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| 关 键 词： | 二甲醚 二元燃料 燃烧性能 柴油 ZS195柴油机 |
| 文章编号： | 1000-0909(2004)04-0305-05 |
| 修稿时间： | 2003年10月23 |
Experimental Study of ZS195 Diesel Engine Fueled with Blended Fuel of Dimethyl Ether (DME) and Diesel |
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| ZHANG Cui-ping,YANG Qing-fo,HU Zhen.Experimental Study of ZS195 Diesel Engine Fueled with Blended Fuel of Dimethyl Ether (DME) and Diesel[J].Transactions of Csice,2004,22(4):305-309. |
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| Authors: | ZHANG Cui-ping YANG Qing-fo HU Zhen |
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| Abstract: | DME has low viscosity, which may result in leakage and wearing in the fuel delivery system. A small fraction of diesel is added into DME to form a higher viscosity dual fuel blend. In this paper, the fraction, the cyclic fuel delivery quantities, the injection advance angle and the nozzle opening pressure were studied and optimized in a ZS195 diesel engine. Experimental results showed that engine power and torque increase compared with the original diesel engine. Under full load operating conditions, exhaust smoke and NO_x decrease remarkably. The Fuel injection systems can operate for a long period. |
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| Keywords: | Dimethyl ether (DME) Diesel Blended fuel performance Emissions |
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