摘要
根据燃油箱气相空间中各气体组分混合特性,采用数值积分方法,在综合考虑油箱载油率、环境温度、燃油中气体溶解度、燃油蒸汽及富氮气体浓度等因素的条件下,建立油箱惰化数学模型,并通过相关文献中的实验数据验证了该模型的正确性。在此基础上,分别对飞机滑行-爬升和俯冲-下降阶段的惰化流量需求开展研究,并分析了载油率、富氮气体浓度、温度等因素对惰化流量需求的影响。本文的研究成果可为飞机油箱惰化系统设计提供理论支持。
According to the characteristics of gas-component mixing in fuel tank vapor space, and considering the influences of several factors such as fuel loading rate, environment temperature, gas solu-bility in fuel, fuel vapor and nitrogen-enriched gas concentration, a mathematical model of fuel tank iner-ting is established by using the numerical integration method.The correctness of the model is verified by the experimental data published in related literatures.On this basis, This paper researches on inerting flow requirements for aircraft taxiing -climb and subducting-descent stages, and analyzes the impact of fuel loading rate, nitrogen-enriched gas concentration, temperature and other factors on the inerting flow re-quirements.The study can provide theoretical support for design of the aircraft fuel tank inerting system.
出处
《航空兵器》
2014年第6期45-49,54,共6页
Aero Weaponry
基金
航空科学基金(20122852038
20132852040)
江苏高校优势学科建设工程基金资助项目(PAPD)
关键词
油箱惰化
富氮气体(
NEA)
流量
计算方法
影响因素
fuel tank inerting
nitrogen-enriched air （ NEA）
flow rate
calculation method
influ-ence factor
作者简介
魏树壮（1987－），男，黑龙江牡丹江人，硕士研究生，研究方向是飞行器燃油系统设计。
