摘要
考虑到飞机座舱引气污染物传播的问题,为对比座舱不同送风方式的排污及舱内通风效果,在5排模拟座舱中通过实验测量方法展开研究。分别在天花板和混合送风方式下测量了瞬时和持续两种形式的引气污染物在座舱内的浓度分布情况,并对座舱内的空气品质进行评价。实验结果表明:天花板送风时引气污染物会先到达靠近窗户的位置,混合送风时引气污染物先到达中间座椅位置;混合送风更容易加快污染物的扩散,但其污染物浓度更低,排污速率也更高,送风量相同时混合送风下飞机座舱的通风效果及空气品质更佳。
In order to compare the effect of both contaminant removal and ventilation inside the aircraft cabin un der differentair supply modes considering the issue ofbleedingair contaminant transmission,an experimental meas urement was performed in a cabin mockup which contains five rows of seats.The concentration diffusion of both instantaneous and continuous bleeding air contaminant were measured under air supply modes of ceiling and mix ture type respectively insidethe cabin mockup,and the coo-esponding air qualities in the cabin were evaluated.The results of experiment indicated that bleeding air contaminant arrived earlier at the seat near the window of cabin than other places under the air supply mode of ceiling while arrivedearlier at the middle seat undermixture air supply.Mixture air supply is more likely toaccelerate the transmission of contaminant but with a lower concen tration and a higher rate of contaminant removal.More effective ventilation and better air quality exist under the mixture air supply mode while the ventilation volume is equal.
作者
王振斌
徐刚
陈希远
Zhen-bin WANG;Gang XU;Xi-yuan CHEN(Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan 618307,China;Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance,Civil Aviation University of China,Tianjiri 300300,China)
出处
《机床与液压》
北大核心
2020年第18期104-109,共6页
Machine Tool & Hydraulics
基金
四川省科技厅中国民用航空飞行学院民航科普实践教育基地项目(2019JDKIO075)
中国民航飞行学院科研基金(青年基金)(Q2020-073)。
关键词
引气污染
座舱环境
空气品质
空气龄
Bleed air contaminant
Cabin environment
Air quality
Age of air
