- Author
-
Eklund, T. I.
- Title
- Effects of Ventilation and Panel Properties on Temperature Rise from Aircraft Fires. Technical Note. May-November 1983.
- Coporate
- Federal Aviation Administration, Atlantic City Airport, N.J.
- Sponsor
- U.S. Department of Transportation, Atlantic City Airport, New Jersey
- Report
-
DOT/FAA/CT-TN83/63
January 1984
23 p.
- Contract
- T1702C
- Keywords
-
ventilation; properties; aircraft
|
potential heat
- Abstract
- A simple model is developed to describe the performance of interior aircraft honey-comb panels in a fire environment. A perfect stirrer analysis is applied to an aircraft cabin in-fight fire of constant size. Heat addition from the fire is offset by heat losses through the aircraft ventilation system and heat transfer through wall and ceiling panels. The ventilation rate is generalized into an effective ventilation rate that includes the panel heat transfer losses. The analysis demonstrates that conduction heat transfer and convection heat transfer can play comparable roles in lowering asymptotic values of enclosure temperature rise. The analysis leads to the definition of both a characteristic ventilation time and a characteristic burning time. The ratio of these times is a dimensionless variable that dominates asymptotic values of temperature. Pyrolysis of panels is further demonstrated as a potential heat sink. An experimental technique is proposed to determine the thermal inertia of a fuselage interior in a non-destructive fashion.