A study on flow analysis for smoke control equipment in Class B fires
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An explosion occurred during the ignition process of a Class B fire at a firefighting training facility for ship firefighting in N State, USA, resulting in injuries to an assistant instructor. Because this environment closely resembles fire scenarios on ships, it is essential to quantify safety measures to ensure occupant protection and establish operational standards. To evaluate fire safety, vector analysis was conducted using Pyrosim based on Fire Dynamics Simulator (FDS) to assess smoke and heat flow. The results were quantified and visualized to analyze the smoke control performance and its impact on occupant safety. To evaluate the effectiveness of the smoke control equipment, an automatic opening vent and exhaust nozzle were examined, and the smoke flow and temperature changes corresponding to each system were analyzed. Their findings demonstrated that both systems effectively prevented smoke and heat accumulation, thereby reducing additional risks. In particular, the automatic opening vents were confirmed to be more suitable for emergencies.
Abstract
An explosion occurred during the ignition process of a Class B fire at a firefighting training facility for ship firefighting in N State, USA, resulting in injuries to an assistant instructor. Because this environment closely resembles fire scenarios on ships, it is essential to quantify safety measures to ensure occupant protection and establish operational standards. To evaluate fire safety, vector analysis was conducted using Pyrosim based on Fire Dynamics Simulator (FDS) to assess smoke and heat flow. The results were quantified and visualized to analyze the smoke control performance and its impact on occupant safety. To evaluate the effectiveness of the smoke control equipment, an automatic opening vent and exhaust nozzle were examined, and the smoke flow and temperature changes corresponding to each system were analyzed. Their findings demonstrated that both systems effectively prevented smoke and heat accumulation, thereby reducing additional risks. In particular, the automatic opening vents were confirmed to be more suitable for emergencies.