Efficiency Discussion of Water Mist Fire Suppression Application in Naval Ship
Tseng-Hui , Sui
Chiun-Hsun , Chen
|關鍵字:||海軍艦艇;電腦模擬;FIREDASS;FDS;Naval Ship;Computer Simulation;FIREDASS;FDS|
In the past, all previous fire taken place of naval ships caused intolerable loss cost. So how to put out the intensity of a fire effectively in initial stage and control the smog to spread, in order to really guarantee navigation, personal and equipment safety is an important subject of this thesis. Because of water mist system providing the following advantages over other suppression systems, such as superior fire suppression, smoke absorption capability, minimal water damage, non-toxicity, safety and environmentally friendly, it has gained worldwide acceptance as an effective solution in many applications after the phase out of Halon production under the Montreal Protocol. In addition, because calculating speed of computer advance by leaps and bounds, hardware price goes down, PBD(Performance-Based Design) concept is rising, and computer modeling simulation technology getting maturity, those make computer modeling become an effective tool to evaluate the fire-proof function and simulate fire scenario. According to the characteristic and condition of the real environment, the computer can simulate different type of disasters by the way of numerical simulation and stipulate an appropriate fire protection and disaster relief plan following the conclusion. It’s not only save time and cost of physical test and evaluation, but also improves naval ship’s capability of fire protection which makes the lose cost of fire drop to the minimum degree and guarantee the maritime navigation safety. Computer simulation is a suitable tool to identify the systematic function and benefit of water mist system. In this thesis, we use computer simulation platform to prove the possibility of application of water mist system in naval ship’s main machinery spaces. According to the results of simulation, water mist system can suppresses the fire effectively under the situation of non- ventilation or forced ventilation. Another looks, relatively in other current fire extinguishing systems of naval ship, it is also comparatively excellent that its fire suppresses efficiency.