The tracer gas measurement indicates how air actually flows between different compartments in the aircraft. Both for mixing and displacement ventilation, it could be shown that there is an important airflow path between crown, cockpit and bilge. Contrarily to common design expectations, there was no proof of airflow between triangle areas and bilge under the investigated pressure distribution. The tracer gas showed to be sufficiently mixed in other compartments than the emitting one. In the latter, even the supply of tracer gas at several points did not lead to a sufficiently homogeneous concentration. The used measurement hardware only allowed for six measurement points. Using a second device could enhance resolution by extending measurement locations to avionics bay, cargo, galley and lavatories. The entire measurement procedure to estimate airflows in the fuselage took approximately four hours. Therefore, it would be applicable to a real long range flight too. This could be an interesting extension of the suggested method to a real application case in order to assess how air actually flows in the fuselage or whether unwanted leakages are present.
Full-scale qualitative measurements of airflow paths to assess the thermal performance of a long-range twin-aisle aircraft section in the flight test facility
2013
9 Seiten, 7 Bilder, 1 Tabelle, 7 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
Luftströmung , Messung , Wärmeleistung , Flugzeug , Prüfstand , Tracer , Druckverteilung , Konzentration , Avionik , Küche , Flugzeugrumpf , Leckage
Optimizing contaminant sensor locations in a twin-aisle aircraft cabin
British Library Conference Proceedings | 2007
|TWIN AISLE FOR SHORT RANGE OPERATIONS - AN ECONOMICALLY ATTRACTIVE ALTERNATIVE?
British Library Conference Proceedings | 2012
|An Aisle Displacement Ventilation System for Twin-Aisle Commercial Airliner Cabin
DOAJ | 2023
|