| 一种含氧混合燃料喷雾特性的试验研究 |
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| 引用本文： | 孙志新,王宪成,王建昕,何旭.一种含氧混合燃料喷雾特性的试验研究[J].装甲兵工程学院学报,2011,25(2):31-36. |
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| 作者姓名： | 孙志新 王宪成 王建昕 何旭 |
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| 作者单位： | 1. 装甲兵工程学院机械工程系,北京,100072
2. 清华大学汽车安全与节能国家重点实验室,北京,100084 |
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| 基金项目： | 清华大学汽车安全与节能国家重点实验室开放基金 |
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| 摘 要： | 针对柴油和所需的油料方案B20D10（即在柴油中掺混20%生物柴油和10%碳酸二甲酯,Dimethyl-Carbonate,DMC）,在某型重型车辆柴油机高压泵试验台上,采用定容弹和高速摄影技术,研究了掺混生物柴油和DMC后对燃油喷雾特性的影响。结果表明：在不同的背景压力下,燃料B20D10油束的贯穿距离低于柴油,最大降幅达到7.0%,锥角最大增加约15.2%;在非破碎阶段,燃料的贯穿距离与时间呈正比关系;在破碎阶段,贯穿距离与时间的关系为s∝tn,其中n约为0.57。试验结果为建立该混合燃料的喷雾模型,并进行缸内燃烧的数值模拟奠定了基础。
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| 关 键 词： | 生物柴油 柴油机 喷雾特性 锥角 贯穿距离 |
Experimental Study on the Spray Characteristics of an Oxygenated Blends |
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| SUN Zhi-xin,WANG Xian-cheng,WANG Jian-xin,He Xu.Experimental Study on the Spray Characteristics of an Oxygenated Blends[J].Journal of Armored Force Engineering Institute,2011,25(2):31-36. |
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| Authors: | SUN Zhi-xin WANG Xian-cheng WANG Jian-xin He Xu |
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| Institution: | SUN Zhi-xin1,WANG Xian-cheng1,WANG Jian-xin2,He Xu2(1.Department of Mechanical Engineering,Academy of Armored Force Engineering,Beijing 100072,China,2.State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China) |
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| Abstract: | In allusion to the diesel and the required fuel project B20D10(diesel blended with 20 biodiesel and 10%DMC,Dimethyl-Carbonate),on a testing bench of a high-pressure pump of a heavy-duty vehicle engine,a constant volume container and high-speed photographic technology are utilized to study the influence of blends of biodiesel and DMC on the fuel spray characteristics.Experimental results show that the penetration of B20D10 is about 7% shorter than that of diesel,cone angle increases by about 15.2%.In non-bro... |
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| Keywords: | Bio-diesel fuel diesel engine spray characteristic cone angle spray penetration |
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