State Key Laboratory of Fire Science

Flame spread over flowing fuel under ignition delay: Spread and merging of flame front and fuel flow front

This paper investigates the flame spread over flowing liquid fuel under different ignition delays ( x ig ), substrate slopes ( θ ) and fuel discharge flow rates ( Q ). Focusing on flame front and fuel flow front, their spread and merging behavior, are concerned herein. Results sh...

Enhancing thermal safety of lithium-ion battery modules via optimized insulation layout and advanced composite phase change material

The thermal safety of lithium-ion batteries (LIBs) remains an unresolved challenge. In this study, a series of thermal runaway propagation (TRP) tests were conducted on ternary LIBs. Aerogel layers were inserted between each battery or every two batteries to construct individual...

Rapidly deployable bio-based chitosan/phytate polyelectrolyte hydrogel coatings for flame retardancy and short-term thermal protection of cotton fabrics

Cotton fabrics are highly flammable cellulose-based textiles that are prone to rapid flame spread and smoldering, creating serious fire safety risks. Hydrogel coatings offer a promising route for textile fire protection because their water-rich networks can absorb heat through ev...

Analysis of Smoke-Spread Characteristics in Electric Vehicle Fires in a Two-Lane Tunnel with an Arched Ceiling

With the rapid increase in electric vehicle ownership, fire risks associated with electric vehicles in tunnels have attracted increasing attention. In this study, a numerical model of an electric vehicle fire in a two-lane tunnel with an arched ceiling was established using the F...

Facile Fabrication of Double-Shell PA-MEL@PU@CFO Microcapsules and Their Fire Suppression Performance in Confined Spaces

Novel double-shell PA-MEL@PU@CFO microcapsules were successfully prepared by further coating the as-prepared PU@CFO microcapsules with the outer shell of phytic acid-melamine salt (PA-MEL). The fire suppression performance was then investigated in a simulated confined space exper...

In Situ Generation of Gel Foam via Heat‐Accelerated Calcium Ion Release From Nano‐CaCO 3 for Lithium‐Ion Battery Fire Suppression and Prevention

ABSTRACT Thermal runaway and its propagation in lithium‐ion battery packs pose significant safety risks to energy storage systems. While complete immersion in water‐based agents is an effective suppression strategy, conventional agents often fail to achieve sustained battery enca...