Standards of Cabin Air Quality in Commercial Passenger Airplanes and Evaluations of Field Studies
Citation
Kafalı, H., Güçlü, İ. (2023). Standards of Cabin Air Quality in Commercial Passenger Airplanes and Evaluations of Field Studies. KILIÇ B.(Ed.), Academic research and reviews in engineering sciences, ss. 571 -588, Platanus PublishingAbstract
Airplanes generally contain a higher density of people, unlike indoor
environments, and cannot be ventilated by natural means, as the outdoor
conditions during flight are not favorable for life. At the altitude level of
airplanes, the ambient temperature reaches below -45oC, and the outsideSince the
drop in ambient pressure below approximately 5 psi [1] is below the levels that a
human can withstand, the aircraft cabin is pressurized and air-conditioned by the
system. During pressurization and air conditioning, arrangements are made
within the limits that will ensure the suitability of human life. In these
arrangements, a pressure difference within the limits that the cabin structure can
withstand is taken into consideration when pressurizing. Because the pressure
inside the cabin at high altitudes will be higher than the ambient pressure outside,
a pressure force will occur, and the resistance of the aircraft structures to external
pressure is less than the resistance to internal pressure. Other considerations are
generally temperature, pressure, CO2, O3, humidity, and respirable volatile
particles. In the system cycle applied by considering these criteria, it is aimed at
ensuring a healthy and trouble-free flight by providing a suitable environment for
passengers and flight crew.