Fire Safety Engineering

Fire safety engineering is a multidisciplinary field dedicated to understanding, preventing and mitigating risks posed by fire within the built environment. It integrates the science of combustion, heat and mass transfer, smoke movement and structural response under elevated temperatures with the design of both active systems (such as detection, suppression and ventilation) and passive measures (including fire-resistant materials and compartmentation). Through experimental testing, computational fluid dynamics and thermostructural analysis, fire safety engineers develop performance-based solutions that balance life safety, property protection and operational continuity. Central to this discipline are risk assessment frameworks that address occupant evacuation, fire growth control, structural resilience and interdependencies with emerging technologies and climate-driven hazards. Collaboration with architects, emergency services and regulators ensures that codes and standards evolve in step with innovations in fire-resistant construction, integrated hazard modelling and adaptable retrofit strategies.

Research from Nature Portfolio

A holistic engineering framework has been proposed that embeds advanced fire analysis and structural design within bridge engineering, enabling the development of sustainable retrofits and new constructions capable of withstanding fire alongside other environmental stresses.

A machine learning-accelerated approach has been introduced to predict mine roadway fire behaviour in real time, using neural networks trained on computational fluid dynamics simulations to forecast temperature, toxic gas concentrations and visibility for emergency decision-making.

Research from all publishers

Detailed fluid-dynamic simulation coupled with transient thermal analysis has been applied to hydrogen fuel cell vehicle fires in semi-open car parks, revealing how nozzle geometry and inter-vehicle spacing govern heat-release rates and concrete slab temperatures, and guiding passive ventilation and structural protection measures for emerging energy vehicles.

A “stick-by-stick” computational fluid dynamics model, originally calibrated on isolated wood cribs, has been successfully scaled up to predict large-scale travelling fires in compartmented spaces, capturing spatially varying heat-release evolution and radiant fluxes to inform compartment design and fire load management.

The Travelling Fires Methodology has been refined with improved analytical expressions for near-field and far-field temperature distributions that incorporate flame oscillations and variable fire sizes, demonstrating that peak structural temperatures shift according to fire spread rates and heat-release profiles in concrete and steel enclosures.

Fire Safety Engineering publication trend

The graph below shows the total number of articles in fire safety engineering across all publications each year (not limited to Nature Index journals).

Technical terms

Heat release rate (HRR): The rate at which a fire emits thermal energy, typically expressed in kilowatts or megawatts, which dictates thermal loading on structures.

Flashover: The rapid transition in a compartment fire when all combustible surfaces ignite almost simultaneously, leading to a sudden temperature spike.

Travelling fire: A non-uniform fire that propagates across a compartment, producing spatially varying temperature fields along its path.

Computational Fluid Dynamics (CFD): A numerical technique for modelling fluid flow, heat transfer and combustion to predict fire dynamics and boundary conditions.

Performance-based design: An approach that uses quantitative analysis and modelling to achieve predefined safety objectives rather than relying solely on prescriptive code measures.

References

1. Thermal responses of a concrete slab under hydrogen fuel cell vehicle fires in a semi-open car park. International Journal of Hydrogen Energy (2024).
2. “Scaling-up” fire spread on wood cribs to predict a large-scale travelling fire test using CFD. Advances in Engineering Software (2024).
3. Integrating fire safety into bridge design is essential for resilient infrastructure. Nature Communications (2024).
4. Improved Formulation of Travelling Fires and Application to Concrete and Steel Structures. Structures (2015).
5. A study on rapid simulation of mine roadway fires for emergency decision-making. Scientific Reports (2024).