Fire Science Show
Fire Science Show
Wojciech Wegrzynski
231 - BESS explosion prevention and mitigation with Lorenz Boeck and Nick Bartlett
59 minutes Posted Dec 17, 2025 at 10:00 am.
Why Talk About Explosions Now
What Causes BESS Explosions
Scale, Free Volume, And Enclosure Effects
Gas Composition And Surrogates
From UL 9540A Data To Design
NFPA 855, 68, And 69 Explained
Ventilation Triggers And CFD Validation
Detection, BMS, And System Independence
Fire Tests And Late Deflagrations
Deflagration Venting: Panels And Limits
Sidewall Venting And External Hazards
Taller, Denser BESS And New Risks
Training, Standards, And What’s Next
Closing Thoughts And Listener Invite
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Show notes
Today we cover another branch of safety of Battery Energy Storage Systems (BESS), that is explosion prevention in mitigation. I always thought you can either end with a fire or with an explosion, and boy I was wrong... but we will go back to this later. Now I bring on Dr. Lorenz Boeck (REMBE) and Nick Bartlett (Atar Fire) to unpack how gas released during thermal runaway turns a container into a deflagration hazard, and what it takes to design systems that actually manage the pressure, flame,...