Abstract
Sodium has unusual fire hazards, including autoignition when heated in air or exposed to liquid water. Owing to limitations of existing suppression agents for sodium pool fires, suppression using liquid nitrogen (LN2) is examined here. Sodium pools of 5–80g were heated in stainless steel beakers. At about 290°C, pool surface autoignition occurred and caused a rapid pool temperature increase. Vapor phase combustion occurred when the pools reached 320–450°C, ultimately leading to pool temperatures up to 700°C. For suppression tests, LN2 delivery (at 2.7g/s) began when the fires became fully-developed, near a pool temperature of 600°C. Liquid nitrogen was found to be an effective suppression agent. The minimum amount of LN2 required to suppress a fully-developed sodium pool fire was found to be about three times the initial sodium pool mass.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
