This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Hot Surface Ignition and Aircraft Safety Criteria
Annotation ability available
Sector:
Language:
English
Abstract
A recently completed experimental program to quantify minimum hot aurface ignition temperatures for flammable fluids encountered in aircraft engine compartments is reviewed. A highly realistic test article composed of a segment of an F-100 engine was used to provide actual engine compartment (F-16) geometries and clutter. The hot surface was an air heated bleed air duct. The effects of many variables were investigated including pressure, temperature, fluid impingement scenario, and ventilation velocity. The paper reviews some of the results of the program, presents some results from other related efforts, suggests a “Safe Design Temperature”, presents a “probability of ignition” for various fluids as a function of surface temperature and outlines a methodology for hot surface hazard analysis.
Recommended Content
| Technical Paper | Ignition of Aircraft Fluids on High Temperature Engine Surfaces |
| Technical Paper | Gear Single Tooth Bending Fatigue Test |
Authors
Topic
Citation
Clodfelter, R., "Hot Surface Ignition and Aircraft Safety Criteria," SAE Technical Paper 901950, 1990, https://doi.org/10.4271/901950.Also In
References
- Johnson, A. M. Roth, A. J. Moussa, N. A. “Hot Surface Ignition Tests of Aircraft Fluids” AFWAL-TR-88-2101 November 1988
- Clodfelter, R. G. “Hot Surface Ignition Studies of Aviation Fluids” AGARD's 73rd Symposium on Aircraft Fire Safety 22-26 May 1989 Sintre, Portugal
- Beardsley, G. “Investigation of the Effect of Air Velocity on the Spontaneous Ignition Temperature of Kerosene Sprayed into a Heated Tunnel Having a Rectangular Obstruction (Flame-holder) in the Airstream” Rolls-Royce, Ltd. Aero Engine Division Technical Report Rbts/RI February 1967
- Myronuk, D. J. “Dynamic, Hot Surface Ignition of Aircraft Fuels and Hydraulic Fluids” AFAPL-TR-79-2095 October 1980
- Parts, L. “Assessment of the Flammability of Aircraft Hydraulic Fluids” Technical Report AFAPL-TR-79-2055 July 1979
- Strasser, A. Waters, N.C. Kuchta, J. M. “Ignition of Aircraft Fluids by Hot Surfaces Under Dynamic Conditions” AFAPL-TR-71-86 November 1971
- Johnson, A. M. Grenich, A. F. “Vulnerability Methodology and Protective Measure for Aircraft Fire and Explosion Hazards, Volume II, Part I - Fire Detection, Fire Extinguishment and Surface Ignition Studies” AFWAL-TR-85-2060 January 1986
- SRL, Inc. “Aircraft Engine Nacelle Fire Test Simulator, Volume I - Technical” AFWAL-TR-80-2055 May 1980