Micro-Spraying Characteristics of Biodiesel Based on Grey Correlation Analysis

doi:10.7652/xjtuxb202003018

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Micro-Spraying Characteristics of Biodiesel Based on Grey Correlation Analysis

更新时间：2025-07-09

- Micro-Spraying Characteristics of Biodiesel Based on Grey Correlation Analysis
- Vol. 54, Issue 3, Pages: 143-149(2020)
- 作者机构：
  
  江苏大学汽车与交通工程学院,江苏,镇江,212013
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202003018
  CLC： TK421.4
- Online First：10 March 2020，
  
  Published：2020
- 稿件说明：
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Micro-Spraying Characteristics of Biodiesel Based on Grey Correlation Analysis[J]. 2020, 54(3): 143-149.
DOI：

Micro-Spraying Characteristics of Biodiesel Based on Grey Correlation Analysis[J]. 2020, 54(3): 143-149. DOI： 10.7652/xjtuxb202003018.

摘要

为探究影响生物柴油雾化性能的主次因素

对B100(棕榈油生物柴油)、N10(生物柴油的体积分数为90%

正丁醇的体积分数为10%)和N20(生物柴油的体积分数为80%

正丁醇的体积分数为20%)的雾化特性进行了试验研究。采用定容弹高速摄影与多普勒粒子分析仪测量系统研究了3种燃油在不同喷孔直径、喷油压力及背压下的微观雾化特性

分析了雾化油滴的轴向速度和索特平均直径D

SMD

的变化趋势

并在此基础上通过灰色关联理论

计算得到了正丁醇掺混比、喷孔直径、喷油压力及背压对生物柴油D

SMD

的影响程度。结果表明:随着正丁醇掺混比的增加

雾化油滴的轴向速度与D

SMD

都有所减小

B100的D

SMD

从轴向长度5 mm处的106.74 μm降低到轴向长度70 mm处的57.98 μm; 随喷孔直径和背压减小、喷射压力增大

3种生物柴油的D

SMD

均呈下降趋势

雾化质量得到改善。通过D

SMD

的灰色关联计算

得到正丁醇掺混比、喷孔直径、喷射压力和背压与D

SMD

之间的关联度分别为0.507 2、0.755 8、0.607 7和0.789 5

说明背压对D

SMD

的影响最大

喷孔直径与喷射压力次之

正丁醇掺混比对D

SMD

的影响最小。

Abstract

To explore the primary and secondary factors affecting the atomi-ation performance of biodiesel

the micro-atomi-ation characteristics of B100(palm oil biodiesel)

N10(90% biodiesel plus 10% n-butanol in volume)andN20(80% biodiesel plus 20% n-butanol in volume)at different orifice diameters

injection pressures and back pressures were studied by high speed photography and phase Doppler particle analy-er(PDPA)measurement system. The axial velocity of the oil droplets and the variation trend of the Sauter mean diameter(D

SMD

)were analy-ed. Based on the grey correlation theory

the order of four influencing factors onD

SMD

of biodiesel was calculated. The results showed that theD

SMD

of B100 decreased from 106.74 -m at the axial length of 5 mm to 57.98 -m at the axial length of 70 mm; the axial velocity andD

SMD

of the oil droplet decreased with the percentage of n-butanol. With the increase of the injection pressure and the decrease of the back pr

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