Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, China.
The Boeing Company, Seattle, USA.
Indoor Air. 2016 Oct;26(5):806-19. doi: 10.1111/ina.12265. Epub 2015 Dec 29.
Gaspers installed in commercial airliner cabins are used to improve passengers' thermal comfort. To understand the impact of gasper airflow on the air quality in a cabin, this investigation measured the distributions of air velocity, air temperature, and gaseous contaminant concentration in five rows of the economy-class section of an MD-82 commercial aircraft. The gaseous contaminant was simulated using SF6 as a tracer gas with the source located at the mouth of a seated manikin close to the aisle. Two-fifths of the gaspers next to the aisle were turned on in the cabin, and each of them supplied air at a flow rate of 0.66 l/s. The airflow rate in the economy-class cabin was controlled at 10 l/s per passenger. Data obtained in a previous study of the cabin with all gaspers turned off were used for comparison. The results show that the jets from the gaspers had a substantial impact on the air velocity and contaminant transport in the cabin. The air velocity in the cabin was higher, and the air temperature slightly more uniform, when the gaspers were on than when they were off, but turning on the gaspers may not have improved the air quality.
安装在商业客机机舱内的气隙通风口用于改善乘客的热舒适度。为了了解气隙气流对机舱内空气质量的影响，本研究测量了 MD-82 商用飞机经济舱五排座位的空气速度、空气温度和气体污染物浓度分布。使用 SF6 作为示踪气体模拟气体污染物，其源位于靠近过道的坐姿人体模型的口中。过道旁的五分之二气隙通风口打开，每个通风口的供气流量为 0.66 l/s。经济舱的气流速率为每位乘客 10 l/s。之前关闭所有气隙通风口的机舱研究中获得的数据用于比较。结果表明，气隙通风口的射流对机舱内空气速度和污染物传输有很大影响。当气隙通风口打开时，机舱内的空气速度更高，空气温度略微更均匀，但打开气隙通风口可能不会改善空气质量。
