Novel air distribution systems for commercial aircraft cabins

The mixing air distribution system used in existing aircraft cabins create a uniform air temperature distribution and dilute contaminants in the cabin that could spread infectious airborne diseases. To prevent that problem, the authors proposed to compare with an under-floor displacement air distribution system and a personalized air distribution system . First a CFD progam was validated, then used to calculate the distributions of the air velocity, air temperature, and CO2 concentration in a section of Boeing 767 aircraft cabin with the mixing, under-floor displacement and personalized air distribution systems , respectively. The conclusions of that comparative study of the air and contaminant distributions in the cabin show that the personalize air distribution system provided the best air quality without draft risk.