Last February, a wood chip storage silo at a biomass plant in northern Europe collapsed without warning or visible flame. Authorities ruled out a conventional fire, but the steel deformation was evident. Thanks to a digital forensic analysis using FLACS-CFD, Revit, and Artec Studio, engineers were able to reconstruct the failure: a hot spot generated by internal fermentation that weakened the structure from within, causing an asymmetric collapse.
Reconstruction of the hot spot with FLACS-CFD and Revit 🔥
The forensic team began by scanning the silo remains with Artec Studio to obtain an accurate point cloud of the deformed steel. With this real geometry, the original structure was modeled in Revit, integrating the material's thermal properties. The simulation in FLACS-CFD allowed recreating the internal heat flow generated by the anaerobic decomposition of the biomass. The results showed a localized thermal accumulation on the south wall of the silo, where the temperature exceeded 400 degrees Celsius. This hot spot reduced the structural steel's resistance by 60%, initiating a plastic deformation that propagated asymmetrically until the total collapse.
Lessons for preventing industrial catastrophes ⚙️
This case demonstrates that self-heating in biomass not only causes fires but also silent structural failures. The combination of digital twins and CFD allows anticipating these critical points before a disaster occurs. Implementing thermal sensors and predictive models in wood silos could prevent million-dollar losses and, above all, protect lives. Forensic simulation technology not only explains the past; it builds a safer industrial future.
It is possible to predict the exact point of structural failure in a biomass silo by simulating the kinetics of self-heating and thermal propagation within the wood chip mass.
(PS: Simulating catastrophes is fun until the computer melts down and you are the catastrophe.)