Research on Smoke Removal Efficiency of High-Power Negative Ion Emitter Array in Fire Scene Space

According to the 2019 National Fire Statistics Analysis of the Fire Department of the Ministry of the Interior, “dense smoke obstruction” is the main reason for fire death after deducting the factors of “inadequate judgment and physical strength” such as disability and deep sleep. As toxic smoke spreads faster than flames, it often causes rescuers to lose their sense of direction until the oxygen runs out and prevent people from viewing an evacuation route hence inhale harmful smoke, which leads to regrettable incidents. Therefore, this research explores the smoke removal efficiency of a high-power Negative Ion Emitter Array (NIEA) in space. We created a 1:1 smoke chamber with high-concentration smoke to simulate the actual situation of the fire scene and installed high-power NIEA on the vertical or top surfaces of the smoke chamber. During the experiments, we recorded the changes in the concentration of negative ions, PM2.5, and the visibility to calculate the smoke removal efficiency of NIEA under different configuration modes. The expected goal of this research is that in the future, the NIEA could be pre-installed in the structures of buildings or temporarily mounted by rescuers along the escape routes to help people obtain cleaner air in a smoke-filled environment and to survive.