Fire Safety Science Digital Archive

IAFSS Symposiums

IAFSS Symposiums All Symposiums Symposium 1 Symposium 2 Symposium 3 Symposium 4 Symposium 5 Symposium 6 Symposium 7 Symposium 8 Symposium 9 Symposium 10 Symposium 11 Fire Research Notes AOFST Symposiums
Cold Discharge Of CF3I In A Simulated Aircraft Engine Nacelle

Yang, J.C., Manzello, S.L., Nyden, M.R. and Connaghan, M.D., 2003. Cold Discharge Of CF3I In A Simulated Aircraft Engine Nacelle. Fire Safety Science 7: 715-726. doi:10.3801/IAFSS.FSS.7-715


An aircraft engine nacelle simulator was built to study the dispersion behavior of CF3I, a potential Halon 1301 (CF3Br) replacement, at temperatures below ?22 °C (normal boiling point of CF3I). The experimental fixture consists of a simulated engine nacelle with baffles, an agent release port, observation windows, and two measurement locations. The simulator has a configuration and dimensions commensurate with a typical small engine nacelle. The entire facility was placed inside a large environmental test chamber. Agent discharge experiments were conducted at –40 °C. The dispersion of CF3I was assessed by measuring the concentration at the two measurement locations in the simulator using fiber-optic-based UV spectrometers. Baseline agent dispersion performance was also established at room temperature. Compared to the measurements obtained at room temperature, there was a significant reduction in the peak agent concentration in the cold temperature release, and a fire suppression system designed based on room-temperature test data may fail to provide adequate fire protection at –40 °C.


halon replacement, engine nacelles, uv spectrometers, fire suppression

View Article

Member's Page | Join IAFSS | Author's Site

Copyright © International Association for Fire Safety Science