Effectiveness of Hot Aerosol Extinguishing Agent in Suppressing Oil Fires at Different Locations

As a suitable candidate for the next halon alternative gaseous fire-extinguishing agent, it is very meaningful to investigate how to improve the fire-extinguishing capacity of hot aerosol fire extinguishing agents for local fires. When fire breaks out, the actual fire location is unpredictable, and the extinguishing efficiency of hot aerosol extinguishing agent will be observably affected by the fire locations due to different flame patterns and intensities at different fire locations. In this work, the use of the hot aerosol extinguishing agent in suppressing oil fires at different locations, including open, partially open, and fully closed locations, has been investigated in order to obtain the regularity of the effectiveness of the hot aerosol extinguishing agent in suppressing a local fire. The results have shown that the hot aerosol extinguishing agent is more effective in suppressing an oil fire in a fully closed system than in an open system or partially open system. The shortest fire-extinguishing time was for the fire in the corner, followed by the one in the middle, and the fire against the wall took the longest time to extinguish for fire locations in a partially open system and a fully closed system, respectively. In addition, the fire extinguishing process involves varying degrees of flame enhancements.