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PODCAST

Fire Science Show

Wojciech Wegrzynski

Fire Science Show is connecting fire researchers and practitioners with a society of fire engineers, firefighters, architects, designers and all others, who are genuinely interested in creating a fire-safe future. Through interviews with a diverse group of experts, we present the history of our field as well as the most novel advancements. We hope the Fire Science Show becomes your weekly source of fire science knowledge and entertainment. Produced in partnership with the Diamond Sponsor of the show

science physics

All Episodes

56:36

238 - Fire Fundamentals pt. 19 - Defining fires in...

Fire Science Show ·

2026/02/11

Welcome to another fire fundamentals episode! Today we dig into how to place a fire in a model so results reflect real physics. From plume inputs to FDS burners, we show where HRRPUA, radiative fraction, and D* make or break smoke your calculations. Things considered in this episode: • why defining the design HRR is separate from placing the source • what a flame is and why we cannot resolve its chemistry • plume models compared by inputs: perimeter, Q, Qc • entrainment, virtual origin, and ...

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69:39

237 - Fire Fundamentals pt. 18 - Explosions with Ali...

Fire Science Show ·

2026/02/04

Welcome back to Fire Fundamentals! Today with prof. Ali Rangwala from WPI and dr Lorenz Boeck from Rembe and WPI we take the world of explosion protection engineering. In this episode we touch: • distinguishing fires and explosions by time scale and damage mode • taxonomy of explosions by energy density and deposition time • hybrid mixtures in coal mines and turbulent burning velocity • severity metrics for gases and dust deflagration index for reactivity • explosion sphere testing, ign...

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50:59

236 - Fitting an efficient smoke control system in a...

Fire Science Show ·

2026/01/28

A tight, historic cellar. Arched ceilings. Long corridors. Tiny shafts. We faced a design wall: to keep routes tenable, we needed twice the extraction that the building could carry. At that point, I've failed as an engineer - I've reached my limit and could not find a solution. Some time later, a solution appeared in my head from nowhere —what if the fan changed with the fire? Not in a crude on-off way, but by tracking temperature, exploiting density changes, and chasing constant mass flow in...

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68:43

235 - A Repeating Tragedy with Lazaros Filippidis

Fire Science Show ·

2026/01/21

A fire in a public venue happened again. No, I am not talking about the one in Switzerland. Since the tragic New Year celebration, we had one more near-miss in Madrid on Jan 10th 2026... In fact, who knows how many we actually had? It is a tragedy that feels like it is playing on repeat... In this podcast episode, we try to dig into why nightclub fires follow the same script decade after decade—what are the parts of the pattern, and what can we do through smarter design, honest modellin...

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59:33

234 - Building a fire safety culture with George...

Fire Science Show ·

2026/01/14

Today we sit down with safety science leader George Boustras - a professor at European University Cyprus, UNESCO Chair in Disaster Risk Reduction and Societal Safety in South East Mediterranean and founder of Centre of Excellence in Risk & Decision Sciences (CERIDES). With George we try to examine fire engineering from the wider safety lens, exploring why culture—not just compliance—decides outcomes. We unpack a practical definition of safety as managed risk and follow the hard-earned le...

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57:16

233 - Safety as a moving target with Danielle Antonelis

Fire Science Show ·

2026/01/07

Fires in informal settlements and humanitarian settings rarely make headlines, but they define daily life for millions. We sit down with Kindling founder Danielle Antonelis to trace a four-year arc from the non-profits early days and ideas to grounded results: a global shelter database, experimental campaign with 20 full-scale burns, and a learning model that puts residents first. The core shift is profound—safety isn’t a box to tick; it’s a practice repeated and refined across homes, lanes, ...

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52:41

232 - 2025 Wrap up episode - How fires turn into...

Fire Science Show ·

2025/12/31

Catastrophes don’t happen because of one bad decision; they happen when many small assumptions fail at the same time. I take this opportunity to talk about my thoughts related to the Wang Fuk Court fire in Hong Kong. I attempt to examine how a routine ignition escalated into hundreds of compartment fires across multiple buildings—and what that says about the limits of our current fire engineering. Keep in mind these are the opinions of myself! We start by challenging a comforting belie...

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4:21

Merry Christmas everyone!

Fire Science Show ·

2025/12/24

I would like to take this opportunity to wish you Merry Christmas, a great time with your families, a bit of rest and time to reflect, and an awesome 2026 to come! If you are desperate for fire science on Christmas Eve, check out the OFR report on open car park fires, which we were able to contribute to: https://www.gov.uk/government/publications/fire-safety-open-sided-car-parks ---- The Fire Science Show is produced by the Fire Science Media in collaboration with OFR Consultants. Thank you t...

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59:50

231 - BESS explosion prevention and mitigation with...

Fire Science Show ·

2025/12/17

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,...

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51:35

230 - Wind driven conflagration experiments with...

Fire Science Show ·

2025/12/10

A facility with 105 synchronized fans pushing hurricane-class wind across a full-size house while a live fire... This is not science fiction - this is a real research capacity that helps us re-shape our knowledge on the full scale building ignition, fire spread, and failure. That’s the stage at IBHS, where we dig into how wind-driven fire behave differently to small-scale and how tiny choices around a building can decide its fate. Together with my guest - dr Faraz Hedayati, we go from embers ...

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61:15

229 - Learning from 900 fires with Björn Maiworm

Fire Science Show ·

2025/12/03

What can you learn after processing observations across 900 severe fires? A lot. Actually, I will send you to the paper straight away: Evaluating 900 Potentially Harming Fires in Germany: Is the Prescriptive Building Code Effective? German Fire Departments Assessed Fire Safety Measures in Buildings Through On-Site Inspections And now let's dissect this. We sit down with Björn Maiworm of the Munich Fire Department to unpack a decade of structured observations from more than 2,000 signifi...

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53:21

228 - Quantifying the expected utility of fire tests...

Fire Science Show ·

2025/11/26

What do you expect from running a fire test? I would hope that it improves my state of knowledge. But do they do this? We often pursue them blindly, but it seems there is a way to do this in an informed way. In this episode we explore a rigorous, practical way to select and design experiments by asking a sharper question: which test delivers the most decision-changing information for the least cost, time, and impact. With Dr. Andrea Franchini of Ghent University, we unpack a Bayesian fr...

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54:47

227 - The differences between EV and ICEV fires in...

Fire Science Show ·

2025/11/19

A viral clip of an EV igniting was what started my worries about safety in car parks I have been designing. Are we ready for fast growing fires? Since 2019 I've learned and studied a lot, I've relaxed on some aspects of it and was able to identify they areas where a lot more engineering considerations should be placed. In this episode I would like to take you inside the engineering choices that shape outcomes: ceiling height, smoke control, structural details, and how fast systems wake up whe...

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62:24

226 - New Swiss fire safety code with Gianluca De...

Fire Science Show ·

2025/11/12

It is a massive effort to rewrite a national fire safety code around measurable risk, explicit targets, and cost-effectiveness. But sometimes, there are great reasons to do so. In this episode, together with Gianluca De Sanctis and Sofia Kourgiantaki we take you inside Switzerland’s sweeping reform, where a new federal law sets a maximum individual risk for life safety, ties property protection to a clear marginal cost rule, and harmonises practice across cantons. Together, we trace how the f...

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52:10

225 - Battery Energy Storage Systems with Noah Ryder

Fire Science Show ·

2025/11/05

Demand for the energy storage is as high as ever, and is about to triple-quadruple. The development of technology is at unprecedented phase, and even within a single project you may face different cell, battery or container generations. This pace reshapes how we think about battery energy storage safety, from enclosure design to emergency response. We sat down with Noah Ryder from the Fire and Risk Alliance to unpack how BESS has evolved from walk-in containers to dense, modular “refrigerator...

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67:38

224 - Navigating the complexities to change our field...

Fire Science Show ·

2025/10/29

This week, in the Fire Science Show, we host a roundtable discussion on complexities in fire safety science and engineering. Most safety failures don’t come from a single mistake—they emerge when people, technology, and institutions misalign. In an ever-changing field in which complexities just go up, we open up a debate on how to cope with that so that the entire field goes in the right direction. For this podcast roundtable debate, I've invited Steve McGuirk, who represents Fire Sector Conf...

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59:07

223 - Heat-induced delamination in CLT with Antonela...

Fire Science Show ·

2025/10/22

In this episode of the Fire Science Show we invite dr. Antonela Čolić from the OFR Consultants, to break down the performance of adhesives used in CLT in fire, what differences between the glues are observable at the microscale and how they show up in real structure fires. We compare common polyurethane adhesives: one that softens near 200–220 C and one that resists softening, crosslinks, and ultimately chars. Through thermogravimetric and calorimetric testing, we map pivotal transition...

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71:33

222 - Integrating WUI risk management and fire safety...

Fire Science Show ·

2025/10/15

In this episode we try to demonstrate another step in integrating fire engineering into WUI risk management, and vice versa. These two areas together form some sort of fire engineering method, which I strongly believe will be an important part of our profession in the future. Today I got to sit down with Dr. Pascale Vacca from UPC to unpack a practical, end-to-end framework for wildland–urban interface risk that engineers can use today, which she has shared in her keynote at the ESFSS Confere...

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62:59

221 - Fire experiments at the ISS (SoFIE-MIST) with...

Fire Science Show ·

2025/10/08

Fire doesn’t play by Earth’s rules once you leave gravity behind. In this deep dive with Professor Michael Gollner, we unpack what the recent experiments at the ISS called SoFIE-MIST taught us about solid fuel flammability in microgravity—how tiny ventilation, oxygen levels, and pressure shifts determine whether a flame spreads, stalls, or vanishes. The details are surprising: blue “bubble” flames, two distinct extinction points, and sustained burning at oxygen levels that would fail to ignit...

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60:36

220 - Test vs experiment with David Morrisset

Fire Science Show ·

2025/10/01

In this episode we dive into the ap between standardized tests and experiments, trying to figure out (a) is there a difference and (b) if there is, could not understanding the difference quietly erode safety. With guest David Morrisset (Queensland University), we unpack furnace ratings that read like time but aren’t, cladding classifications that were never meant for façades, and the infamous bird-strike test that shows how any standard bakes in choices and consequences. The throughline: cont...

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247 results

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