| 基于多普勒粒子分析仪的生物柴油喷雾特性试验 |
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| 引用本文： | 叶丽华,施爱平,袁银南,孙 平,张春丰. 基于多普勒粒子分析仪的生物柴油喷雾特性试验[J]. 农业工程学报, 2009, 25(12): 240-244. DOI: 10.3969/j.issn.1002-6819.2009.12.042 |
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| 作者姓名： | 叶丽华 施爱平 袁银南 孙 平 张春丰 |
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| 作者单位： | 1. 江苏大学汽车与交通工程学院,镇江,212013
2. 江苏大学能源与动力工程学院,镇江,212013 |
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| 基金项目： | 国家自然科学基金（50776042）；国家科技部科技人员服务企业项目（2009GJC10045）；江苏省科技厅科技创新与成果转化项目（BN2008018）；江苏省镇江市科技计划项目（zjczcxy200902，SH2008003，NY2008050）；江苏大学高级人才启动基金（07JDG075） |
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| 摘 要： | 柴油机燃烧过程直接决定了柴油机的动力性、经济性和排放性能，而燃油雾化的质量又是影响燃烧过程最重要的因素。该文研究了生物柴油及其调和油的雾化特性，在模拟气缸中，运用相位多普勒粒子分析仪（phase Doppler particle analyzer，PDPA）测量系统对生物柴油及矿物柴油不同比例调和油的喷雾场进行了测量，得到了喷雾场中油滴的速度矢量和油滴直径。结果表明：在油束的核心区过后，喷孔直径对雾化影响比较大，小孔径的雾化效果好；喷油器不同的较小启喷压力（在常用启喷压力范围内）对生物柴油没有很大的影响；生物柴油的雾化效果不如柴油好，直观表现就是索特平均直径较大；油泵转速高，油滴的脉动速度就大，索特平均直径就小。
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| 关 键 词： | 柴油机，生物柴油，喷雾，相位多普勒粒子分析仪 |
| 收稿时间： | 2009-02-27 |
| 修稿时间： | 2009-10-20 |
Experiments on spraying characteristics of biodiesel using phase Doppler particle analyzer |
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| Ye Lihu,Shi Aiping,Yuan Yinnan,Sun Ping and Zhang Chunfeng. Experiments on spraying characteristics of biodiesel using phase Doppler particle analyzer[J]. Transactions of the Chinese Society of Agricultural Engineering, 2009, 25(12): 240-244. DOI: 10.3969/j.issn.1002-6819.2009.12.042 |
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| Authors: | Ye Lihu Shi Aiping Yuan Yinnan Sun Ping Zhang Chunfeng |
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| Affiliation: | 1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China,2. School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China,1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China,1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China and 1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | The combustion process of diesel has a direct effect on engine power, economy and emissions. Moreover, theatomization quality of fuel injection is the most important factor affecting combustion process. Therefore, spraycharacteristics of bio-diesel, diesel and the mixture of bio-diesel and diesel were studied in this paper. Spray field ofbio-diesel and mixed fuel in a model cylinder were measured by PDPA (Phase Doppler Particle Analyzer). Test data suchas distribution of velocity, diameter of oil drop and concentration in the spray field were obtained. The results show thatthe diameter of nozzle orifice gives a great impact on atomization beyond the core area of the spray. The smaller theorifice diameter, the better the spray atomization. The injection pressure have little influences on the spray field ofbio-diesel. Compared with fossil diesel fuel, bio-diesel performed worse spray characteristics. SMD (Sauter meandiameter) of bio-diesel is bigger than that of fossil diesel fuel under the same condition. The higher the pump speed is,the smaller the diameter and fluctuation velocity of droplet are. |
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| Keywords: | diesel engines biodiesel spraying phase Doppler particle analyzer(PDPA) |
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