Impact of heptadecance and octadecane on physical properties and SMD of kerosene

ZHOU Ting-ya; LI Jiang-hong; TAN Ruo-qiao; GAN Zhi-wen; YANG Xiao-yi

doi:10.13224/j.cnki.jasp.2016.05.015

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Impact of heptadecance and octadecane on physical properties and SMD of kerosene

更新时间：2026-07-07

- Impact of heptadecance and octadecane on physical properties and SMD of kerosene
- Vol. 31, Issue 5, Pages: 1133-1141(2016)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2016.05.015
  CLC：
- Published：2016
- 稿件说明：
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周婷雅, 李江弘, 谭若樵, 甘志文, 杨晓奕. 正十七烷与正十八烷对航空煤油理化性能及液滴平均直径的影响[J]. 航空动力学报, 2016, 31(5): 1133-1141.

doi: 10.13224/j.cnki.jasp.2016.05.015
周婷雅, 李江弘, 谭若樵, 甘志文, 杨晓奕. 正十七烷与正十八烷对航空煤油理化性能及液滴平均直径的影响[J]. 航空动力学报, 2016, 31(5): 1133-1141. DOI： 10.13224/j.cnki.jasp.2016.05.015.

doi: 10.13224/j.cnki.jasp.2016.05.015 DOI：

摘要

讨论了正十七烷与正十八烷(C17

C18)对燃料运动黏度、密度、表面张力理化性能的影响

探究了直链烷烃对SMD(Sauter mean diameter)的影响.将Key's混合规律、Tat混合规律和多项式拟合应用于密度公式的拟合

并将Key's混合规律与对数拟合应用于运动黏度公式的拟合

得出的理化性能拟合公式精度较高;通过测量纯煤油及C17

C18混合油雾化的SMD

实验发现随着直链烷烃的质量分数的增加

混合油的运动黏度增加

SMD也随之增加

雾化效果与纯航空煤油的相比较差

而C18混合油的SMD要比C17混合油要大

并且利用密度、运动黏度的拟合公式对SMD进行预测的偏差小于0.3%.

Abstract

The impact of n-alkanes (C17~C18) on the physical properties of kerosene

including kinematic viscosity

density and surface tension was dicussed

and the effects of n-alkanes (C17~C18) on SMD (Sauter mean diameter) were investigated. The density fitting equation used Key's blending law

Tat blending law and polynomial fitting. The viscosity fitting equation used Key's blending law and logarithmic fitting. This fitting equation in this investigation have optimal accuracy. The atomization experiment shows that the SMD of blending fuels increases with the mass percentage of n-alkanes

which means that the added n-alkanes have negative effect to the atomization performance. The SMD of C18 blending fuels is larger than C17 blending fuels'. The fitting equation of physical properties are used to predict SMD of the blending fuels

and its error is less than 0.3%.

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