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Fire Science Show

Fire Science Show

Wojciech Wegrzynski 265 Episodes Aug 19, 2026

Fire Science Show connects fire researchers and practitioners with a society of fire engineers, firefighters, architects, designers, and others interested in creating a fire-safe future. Through interviews with diverse experts, it presents the history of the field as well as the most novel advancements. The show is produced in partnership with OFR Consultants.

Episodes

265 - How fires can lead to a nuclear winter? with Stephen Welch
265 - How fires can lead to a nuclear winter? with Stephen Welch Aug 19, 2026 4031 As a kid of 80s and 90s, a lot of the pop culture was around the post-apocalyptic scenarios following a nuclear exchange. I always thought a nuclear winter is a consequence of atomic bombs falling down, but now as a fire researcher I've learnt it is mostly about fires, after all. Today I sit down with Dr Stephen Welch (University of Edinburgh) to trace the fire-engineering-heavy pathway from
264 - Engineering Firebrand Showers with Samuel L. Manzello
264 - Engineering Firebrand Showers with Samuel L. Manzello Aug 12, 2026 3984 A wind-driven ember shower is a key wildfire exposures a building can face, but we have not yet fully understood or accounted for them in making our communities wildfire resilient. Today we sit down with Samuel L. Manzello of Tohoku University and Reax Engineering to unpack how in the last 20 years the firebrand science went from not being able to characterize the features of them well to being ab
263 - Developments in modelling WUI fires with Arnaud Trouvé
263 - Developments in modelling WUI fires with Arnaud Trouvé Aug 5, 2026 3791 Wildland-Urban Interface fires are a class of fires that deserves own models, own studies and a lot of research focus. This is what I discuss today with prof. Arnaud Trouvé from the University of Maryland, shortly before he has given his plenary talk at the recent Combustion Symposium in Kyoto. In this interview, Arnaud explains what makes wildland urban interface (WUI) fires and urban conflagrati
262 - Fire Fundamentals pt. 22 - Optical diagnostics in fire with Elizabeth Weckman
262 - Fire Fundamentals pt. 22 - Optical diagnostics in fire with Elizabeth Weckman Jul 29, 2026 3706 In todays episode of fire fundamentals we talk with Professor Elizabeth Weckman from University of Waterloo about advanced optical diagnostics that let fire researchers read temperature, chemistry, soot, and velocity from light without relying only on probes. We break down what cameras, infrared imaging, spectroscopy, lasers, and PIV can reveal, plus the calibration and interpretation pitfalls tha
261 - The story of the Cone Calorimeter with Vyto Babrauskas
261 - The story of the Cone Calorimeter with Vyto Babrauskas Jul 22, 2026 5624 The cone calorimeter sits in thousands of labs, shaping what we know about flammability, smoke production, and heat release rate. This essential piece of equipment comes with quite a story of how it was engineered or why its “obvious” design choices were anything but obvious. We wanted that history from the source, so we invited Professor Vyto Babrauskas to walk us through the decisions, constrain
260 - Fire safety in a carbon budget with Cecilia Wetterqvist and Axel Mossberg
260 - Fire safety in a carbon budget with Cecilia Wetterqvist and Axel Mossberg Jul 15, 2026 4389 A carbon budget can feel like a hard wall in modern building design, and once you treat CO2 as currency, everything starts competing for a slice of it. The problem is that fire safety systems often show up in those spreadsheets only as a penalty: extra embodied carbon for sprinklers, alarms, and protection. What gets ignored is the payoff. A serious fire can erase years of “sustainable” choices th
259 - Communicating fire science with politicians with Birgitte Messerschmidt
259 - Communicating fire science with politicians with Birgitte Messerschmidt Jul 8, 2026 3725 Fire safety is a tough “product” to sell because the best outcome looks like nothing happened. That’s exactly why we sat down with Birgitte Messerschmidt (NFPA) to talk about communicating fire science to politicians, regulators, grant bodies, and other people in positions of power who can approve policies, permits, and funding, often with only a few minutes to spare. We share what changes when yo
258 - e-mobility fires in trains with Adam Barowy
258 - e-mobility fires in trains with Adam Barowy Jul 1, 2026 3397 A battery fire on a train is not “just another small fire.” When a lithium-ion battery in an e-scooter or e-bike fails, the rail car can behave like a long pipe that moves smoke fast, limits escape options, and compresses decision-making into minutes.We sit down with Adam Barowy from UL Research Institutes FSRI to unpack new full-scale passenger rail car burn tests using real micro-mobility device
257 - Fire Fundamentals pt. 21 - Radiation with Simo Hostikka
257 - Fire Fundamentals pt. 21 - Radiation with Simo Hostikka Jun 24, 2026 3791 In this episode of fire fundamentals we sit down with Professor Simo Hostikka from Aalto University to cover radiation in fires, both from the angle of physical phenomena and ways to model it. In this episode we cover following topics: feel less mysterious, from blackbody basics and role of radiation actually does inside the CFD N-S equation. Spectrum and emissivity to real engineering outcomes li
256 - Modelling turbulent combustion in fire CFD with Bart Merci
256 - Modelling turbulent combustion in fire CFD with Bart Merci Jun 17, 2026 4363 While we can get pretty far with a very simple approximation of what a fire is in our fire cfd, at some point our simplications are not enough. And there is a plenty of features and phenomena, for which we simply need a better tool to handle -  carbon monoxide, soot, extinction, flashover behavior, and what happens when ventilation disappears. At the IAFSS symposium, we sit down with Professor Bar
255 - Timber load bearing capacity in fire from nano- to megascale with Felix Wiesner
255 - Timber load bearing capacity in fire from nano- to megascale with Felix Wiesner Jun 10, 2026 3657 A timber column can survive the heating phase of a fire resistance test and still collapse later, after the flames are gone. We know there is so much more to structures in fires than the test demonstrates, but how much exactly do we know about timber nowadays? In this episode we try to dive deeper and discuss mass timber fire safety, structural fire engineering, and what a fire resistance rating d
254 - Communicating fire science with firefighters, with Steve Kerber
254 - Communicating fire science with firefighters, with Steve Kerber Jun 3, 2026 3622 Fire science should have its place at the fireground, yet I've learned how hard it is to communicate it with the key stakeholder - the firefighters. It's not my isolated experience, and that tension drives our conversation with Steve Kerber, Vice President at UL Research Institutes Fire Safety Research Institute (FSRI). Today we dig into the real craft of communicating fire dynamics to f

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