Abstract:Currently, gas-based firefighting systems tend to release fire extinguishing agent at pressures of around 100 bar or more for quick firefighting. The flow noise produced by the agent discharge is approximately 140 dB, which is similar to fireworks. This powerful sound pressure level (SPL) results in equipment failure during the fire suppression process, accelerating the movement studies to reduce flow noise. Most previous studies have selected design parameters such as packing density, porosity, and absorbent … Show more
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