Abstract
Decreasing the temperature of fire field is one of the most important technologies of metro fire emergency rescue. It is calculated that the total heat is released in metro fire and the mass of ice, liquid nitrogen and dry ice are needed when the temperature is decreased to 60°C. Ice is the best option among the three through comprehensive analysis from mass, volume, transportation, storage and so on. Research on cooling technology of emergency rescue in metro fire can do contribution to reduce metro fire casualties.
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