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当前在工程设计领域,对目标设备进行仿真模拟从而完成对系统功能、性能的验证。基于飞机燃油系统相关运行参数进行建模,建立实验系统,通过系统实验分析,研究了不同运行参数对系统的有效性的影响,包括惰性气体(富氮空气)的流量,惰性气体浓度,油箱的燃料负荷和不同的惰化方式。实验结果表明,在相同的运行条件下,随着惰性气体流量的增加,完全惰化过程的时间跨度下降;使用5%氧浓度的惰性气体的时间跨度比使用纯氮的时间长得多;当燃油箱使用空调清洗方式进行燃油时,时间跨度随着燃油负荷的减小而增加;当完全惰化过程的时间跨度是评估标准时,空载清洗方式显示出最佳的惰化性能,但是当燃料中溶解氧浓度的降低也被认为表征惰化有效性时,空载洗涤和燃料同时洗刷是最有效的。
Currently in the field of engineering design, the simulation of the target equipment to complete the system functions, performance verification. Based on the related operating parameters of aircraft fuel system, an experimental system was established, and the effects of different operating parameters on the effectiveness of the system were studied through systematic experimental analysis, including the flow of inert gas (nitrogen-rich air), inert gas concentration, Fuel load and different inerting methods. The experimental results show that under the same operating conditions, the time span of complete inerting process decreases with the increase of inert gas flow rate. The time span of inert gas with 5% oxygen concentration is much longer than that with pure nitrogen. When the fuel tank is air-conditioned, the time span increases as the fuel load decreases. The no-load cleaning method shows the best inerting performance when the time span of the complete inerting process is the evaluation criterion. However, when the fuel The decrease in dissolved oxygen concentration is also considered to be the most efficient when idling and fuel simultaneously scrubbing is validated.