Impact of Ventilation on Fire Patterns
Changes in home construction materials, contents, and geometry have resulted in changes on the fire scene. Today, structure fires are predominantly fueled by synthetic fuels and commonly become ventilation-controlled. How and where the fire receives oxygen impacts the fire dynamics and resulting fire patterns. This presentation will include videos, photos, and data from full-scale fire experiments conducted at the UL Large Fire Laboratory. A one-story and a two-story structure were used for the experiments. The test scenarios ranged from room fires with no exterior ventilation, to room fires with flow paths that connected the fires with remote intake and exhaust vents throughout the structures. Elevated fires originating in the kitchens were also examined. This project was supported by a grant from the U.S. DoJ NIJ.