Study on The Influence of Air Conditioning Operation on Fire Evacuation in Non-fire Carriage
Subway fires are the most dangerous accidents in subway operations.In the event of a fire in the train,the fire smoke will spread to the non-burning car through the throughway,so it is necessary to control the fire smoke.As an important system for environmental regulation in subway cars,the operation of air conditioning has an important impact on the temperature field and smoke flow in the train during fire.At present,there are specifications that clearly stipulate the control method of air conditioning in the fire compartment during fire,but there is a gap in the control of the air conditioning system in the non-fire compartment during the fire.In this paper,we take a subway as an example,and use FDS to build three subway cars,and calculate the influence of air conditioning operation in adjacent cars on the flue gas flow in the carriage under the condition of baggage fire.In this paper,the calculation results of the fire are introduced into the evacuation calculation,the personnel evacuation coupled with the fire smoke flow is established,and the influence of the air conditioning operation of the adjacent carriage on the contact temperature,visibility and FED value of the personnel is analyzed,and finally it is concluded that the operation of the air conditioning system of the adjacent carriage is conducive to improving the safety of the personnel evacuation process of the adjacent carriage during the fire.
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