RP-3航空煤油物理替代燃料模型及应用研究

doi:10.13675/j.cnki.tjjs.190203

推进技术 ›› 2020, Vol. 41 ›› Issue (4): 934-941.DOI: 10.13675/j.cnki.tjjs.190203

RP-3航空煤油物理替代燃料模型及应用研究

姚长鑫¹，禹进²

1.重庆建筑工程职业学院城市轨道交通与机电工程系，重庆 400072;2.重庆交通大学机电与车辆工程学院，重庆 400074

发布日期:2021-08-15
作者简介:姚长鑫，硕士，讲师，研究领域为动力设备内流动及传热特性研究。E-mail：YCX1623@163.com
基金资助:
重庆市教委科学技术研究项目（KJQN201800735）。

A Physical Surrogate Fuel Model for RP-3 Aviation Kerosene and Applications

1.Department of Urban Rail Transit and Electromechanical Engineering,Chongqing Jianzhu College,Chongqing 400072,China;2.School of Mechatronics & Automobile Engineering,Chongqing Jiaotong Univeristiy,Chongqing 400074,China

Published:2021-08-15

摘要/Abstract

摘要： 针对现有物理替代燃料构建方法需要大量实验数据来完成多目标优化计算，导致替代燃料构建成本过高的问题，提出了基于分子结构相似来构建物理替代燃料的方法。基于直接匹配分子结构和官能基团的思路，构建了一个能描述RP-3航空煤油主要物理性质的三元替代燃料模型。以正十二烷、2,5-二甲基己烷和甲苯为基础燃料，用以匹配目标燃料的四种官能基团：CH₃,CH₂,CH和苯基。在不同压力、温度条件下测试了替代燃料模型计算密度、黏度、比热容和导热系数等物性参数的精确性，结果表明该替代燃料模型能很好地反映RP-3航空煤油在亚临界到超临界状态下的主要物理性质。最后将得到的替代燃料模型应用于管道对流换热数值模拟中，用以模拟航空煤油再生冷却过程。模拟值与实验值吻合良好,证明了本文替代燃料构建方法的有效性和实用性。

关键词: RP-3航空煤油;替代燃料;官能团;物理性质;再生冷却

Abstract: In order to solve the problem that spend too much time and work to measure experimental data and calculate optimal functions in traditional surrogate fuel methods, a three-component surrogate for emulating the physical characteristics of RP-3 aviation kerosene has been developed by the methodology of directly matching the molecular structure and functional groups. The components of n-dodecane, 2,5-dimethylhexane and toluene were chosen to provide comparable molecular sizes and the representative functional groups, , , and phenyl of the target fuels. Several important physical properties including density, specific heat capacity, viscosity and thermal-conductivity of present surrogate fuel were validated under different temperature and pressures covering sub- and supercritical conditions. The present surrogate fuel model was also used in the numerical simulations of a tube flow, which mimic the process of regenerative cooling. The effectiveness and practicability of the present surrogate fuel were also validated by the comparisons between the simulation and experiment results.

Key words: RP-3 aviation kerosene;Surrogate fuel model;Functional group;Physical properties;Regenerative cooling technology

姚长鑫，禹进. RP-3航空煤油物理替代燃料模型及应用研究[J]. 推进技术, 2020, 41(4): 934-941.

YAO Chang-xin¹, YU Jin². A Physical Surrogate Fuel Model for RP-3 Aviation Kerosene and Applications[J]. Journal of Propulsion Technology, 2020, 41(4): 934-941.

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RP-3航空煤油物理替代燃料模型及应用研究

A Physical Surrogate Fuel Model for RP-3 Aviation Kerosene and Applications

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