- Author
- Mamoru, N. | Naoshi, S. | Yuko, S. | Yoshio, O.
- Title
- Fire Extinguishing Effect of Halon Replacement-Inert Gas-Mixed Agents.
- Journal
- Report of National Research Institute of Fire and Disaster, No. 86, 51-59, September 1998
- Keywords
- halon alternatives | extinguishing | inert gases | hydrocarbons
- Abstract
- ONLY ABSTRACT IN ENGLISH The effect of interaction between fluorinated hydrocarbon fire suppressants (HFC-23, HFC-227ea, FC-3-1-10) and inert gases (N₂CO₂) on fire extinguishing efficiency was examined in view of potential use of mixed agents. Flame extinguishing concentrations of these mixed agents for n-heptane were measured with the cup burner apparatus as a function of mole fraction of inert gas in the suppressant mixture, and were compared with thos estimated on the assumption of no interaction. The results show that the mixed agents of HFC-227ea or FC-3-1-10 with inert gses exhibit a negative multiplier effect on fire extinguishing efficiency.