I'm very sorry, but I could not finalize the episode to air this week in time, and in consequence, I have chosen to have a short technical break in the podcast. We will return next week with a (hopefully) really exciting episode on compartment fires! It will be kind of a birthday party, so I'm looking forward to that and trying to ensure the episode is worthy of the occasion.In the meantime, as you perhaps have a spare hour of your time and no podcast to listen to... I would love to invite yo...

A few weeks ago in Copenhagen, stepping onto the stage to open the SFPE Fire Safety Conference and Expo on Performance-Based Design, I took a bit of a gamble. I was invited to give an opening keynote, but instead of talking about my fire science and engineering, I've chosen to confront an often-overlooked cornerstone of our profession: communication. If you follow the podcast, it is not something new to you. I brought up this case multiple times - Fire safety is not just about the technical m...

In this episode, we dive into standardization efforts for fire safety. An entire universe of testing laboratories, committees, auditors, and certifiers work together to provide product end-user fire safety classification. So, in the end, the user does not have to worry about what the product will do, as its relevant characteristics are well known from the certificate and, to some extent, from the standards.But that's a perfect world. In the real world, it is perhaps not that simple. Crafting ...

The fire is detected in the building. Please evacuate. Do not use the elevator.I’ve heard this emergency message perhaps a thousand times. It is deeply engraved in my mind to the extent that the moment I hear the first beep of the fire alarm, I know this message will come up. I heard the chime sound, and I knew I should evacuate and not use the elevator.But in all seriousness, why? Why shouldn’t I use the elevator, and what would happen if I did (in case the building would not prevent me from...

Wind turbine fires - are they an issue, or are they not? In this episode, I am joined by Prof. Guillermo Rein of the Imperial College London, who raised this issue 10 years ago at the IAFSS conference, and I believe we still do not have a clear answer.In this episode, we discuss the fire safety of wind turbines using the layers of protection framework - from suppression, detection, and prevention to firefighting. We have discussed the challenges with evacuation and the subsequent fires trigge...

CROSS UK is Collaborative Reporting for Safer Structures in UK. CROSS is a confidential reporting system which allows professionals working in the built environment to report on fire and structural safety issues. These are then published anonymously to share lessons learned, create positive change, and improve safety. Find out more about the safety information we provide below.This initiative in the space of fire safety is lead by Neil Gibbins and Peter Wilkinson, who are my guests today. We ...

In this episode of the Fire Science Show we go in depth on the Building Integrated Photo-Voltaic systems (BIPV). It is a topic relevant to many fire engineers, and one on which it is very difficult to find a lot of information about. For this purpose I’ve invited Reidar Stølen from RISE and a PhD candidate at Norwegian University of Science and Technology – NTNU. Reidar has hands-on experience with fire testing BIPV façade, as he has performed such experiments with the Swedish test method for...

In this episode, we explore wildfire's impact on industrial fire safety with Professor Eulàlia Planas from Universitat Politécnica de Catalunya. Eulalia defines the term  Wildland Industrial Interface (WII), a realm where the forces of nature clash with safety and process engineering. In the episode, we highlight that it is not just the exposure to the fire itself but also to the secondary effects - ember storms, firebrand accumulation, strong winds or power shutdowns that may cause...

Depression and anxiety are on the rise in both academia and engineering consultancies. Everyone is constantly stressed and pushed to their limits. The system is built this way... And imagine that on top of the inadequate mental health related to the stressful environment, you also struggle with a mental illness. A health condition you did not choose, you may or may not be aware of, and may or may not be treating... Now, add trying to build a family and advance the most challenging part of the...

In this episode, we discuss the stark realities of fire safety engineering in South Africa (and beyond) as we sit down with Professor Richard Walls from Stellenbosch University. Our journey through the recent history of devastating fires, from truck blasts to the fire that took down the SA Parliament building, lays bare the critical gaps in resources, awareness and education that have catastrophic consequences.  Professor Walls's expertise guides us through the complexities of local building...

Imagine if we had a tool that we could use to design a design fire. Instead of simply assuming fire growth characteristics by slapping the alpha-t2 function, use a tool that could tell us which items in a compartment burn and what the characteristics of that fire are. I would say this dream is shared among many fire safety engineers - I think we can all agree that we could use such a tool. Today's guest, Dr Greg Baker, has shared this dream and built a tool like this within his PhD at the...

In today's fire fundamentals episode, I have chosen a difficult job: explaining how CFD modelling works without the ability to put a single equation out there! It's much tougher than I thought! I hope I've done a decent job, though. I am trying to fill out this niche of talking about CFD at an approachable level. I've noticed there is a ton of 'introductory' level resources about modeling. Still, they usually very quickly go into mathematical formulations instead of explaining in plain...

If the word 'uncertainty' sounds extremely boring to you, this episode will prove you wrong. I have invited David Morrisset from the University of Edinburgh to discuss his research on the subject. Whereas in fact David is establishing standard deviations, means and other statistical means of quantifying uncertainty in core fire measurements, the really impactful and important part of his research is on explaining WHY those uncertainties are there. Through physical explanation of processes...

This week, I am meeting up with Imperial Hazelab's Harry Mitchell, who is finalizing his PhD thesis on mass timber fires and, quite uniquely - including the smouldering phenomena in those fires. As a part of Code Red experiments run by Arup, Imperial College London and Cerib (which you can learn more about from episode 111 with Panos Kotsovinos)  Harry has performed observations of formation, growth and decay of smouldering "hot spots" for up to 2 days after the fire. Based on that,...

Tests in the world of reaction to fire are supposed to be representations of real fire scenarios, allowing us to grasp the characteristics of building products against them. While for the worst scenario (flashover fire) or the smallest ignition source (small flame), the definition is pretty straightforward. However, creating the intermediate method that the entire Europe would agree on was a bumpy ride. Our latest episode is a treasure trove of knowledge detailing the birth and maturation of...

I've finished my first large research grant! I guess that makes me a 'real' scientist now. Came here today to share some most interesting aspects of this project with you. Not going to bore you all about the wind and fire interaction physics (hey, there is an entire episode 50 devoted to that!), but rather talk about challenges and stuff that perhaps will matter if you would like to engineer a case similar to one we have studied. So in this podcast episode, we will go into: How our framework...

It is interesting to see changes in our profession that happen directly in front of our lives. Climate change and in consequence the changes in the wildfire patterns are one such obvious shift. In Poland, we do not ever have a ‘wildfire’ season, and I was kind of surprised when I discovered this is a thing in the South or in other parts of the world. Unfortunately, we do not have it *yet*. Some years ago devastating wildfire season happened in Sweden. There has been an emergency in northern...

This episode of the Fire Science Show welcomes once again Adam Barowy from the Fire Safety Research Institute to shed light on the pressing issue of fire hazards in electric mobility devices. In this episode, we give a follow-up to ep. 085 with Adam, which was published one year ago. One year in the world of e-mobility is a lot of time, so we have a lot of catching up to do! We tackle the complexities of standardizing explosion protection for large-scale energy storage and the...

In this episode of Fire Fundamentals, we dive into the life-saving choreography of fire detection and building automation systems that must work together in case of a fire. We discuss the roles and challenges related to: fire detection and signalling;control panels and fire scenarios;smoke control and compartmentalization;power and water supply and management.We also discuss the sources of potential delays in device operation, and how some of those are consciously built into the system as a...

In episode 48, my guest Mike Spearpoint said that in mid '90s, he participated in experiments on vehicle fires, as at that time, there were doubts if the design fires of that time (developed in the '80s) were representative of modern cars. Fast forward 30 years ahead, and we seem to be in a very similar situation. We have limited knowledge on vehicle fires, most coming from very old studies that have used even older vehicles... And we have a fleet that consists of larger vehicles, gravitating...

It's time to learn about "the evacuation equation" from one of its creators. This week I interview prof. David Purser about the elements that go into the evacuation process that help us determine the fire safety of buildings. We go through the components of the Required Safe Evacuation Time (RSET) one by one: detection timealarm timepre-movementoccupant movement and congestion.We discuss how those were initially defined, what the assumptions behind establishing them as a part of the...

As we close the curtains on 2023, take a walk with me through the unforgettable milestones that have shaped the Fire Science Show. This isn't just a recap; it's a treasure trove of insights and a roadmap to the innovations just over the horizon. We've come so far together, with download numbers soaring and our influence deepening within the fire science community. My gratitude overflows for the steady support from OFR Consultants in 2023, and the future looks very bright with this...

Welcome aboard a journey through the challenges of managing electric vehicle fires at sea with Elena Funk of DBI and Magnus Arvidson from RISE. In this podcast episode, we discuss two large projects devoted to understanding how we can mitigate, suppress and manage EV fires - project Elbas at DBI and project Lash Fire at RISE. Even though the aim of those were ferries and ro-ro ships, the findings are very important and relevant for civil infrastructure like car parks or tunnels. In the...

This is an important episode. Our guest for today, UK fire engineer Mary Button, who uses a wheelchair herself, shares some of her own stories and feelings describing the reality for many disabled individuals. Drawing from her own experiences, Mary shares invaluable insights into the cognitive complexities individuals with mobility issues face, physical barriers, and psychological burdens related to the fire evacuation process. But most importantly, I think we touch on the essence here of how...

In this part 8 of Experiments that changed fire science series we revisit Cardington (previously covered in part 2 - https://www.firescienceshow.com/078-experiments-that-changed-fire-science-pt-2-bre-cardington-with-tom-lennon/), but this time from the perspective of modeling the structure. My guest prof. Asif Usmani of the HK PolyU takes us on how simplifying the model led them to some fundamental discoveries on the thermo-mechanical response of structures to fires. We discuss material...