Abstract
Because of good cooling, heat absorption, attenuation of heat radiation and other functions, water mist is especially suitable for ship fire extinguishing and cooling. The CFD software is used to simulate water mist fire extinguishing and cooling in a ship cabin under the condition of six different parameter combinations. When the grain size is less than 150μm, the cabin temperature can be reduced to 25°C in three minutes after water mist intervention. The larger the flow rate, the smaller the grain size, the faster the cooling rate. Fire extinguishing efficiency test of water mist in small scale ship cabin is carried out. The result shows that water mist with grain size of 100μm-150μm can quickly extinguish fire and reduce cabin temperature to 25°C in two minutes.
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