Experimental Study on Species Generation in an Enclosed Compartment Fire

摘要

when fire start from an enclosed space (viz. ventilation is confined), air in the space will be consumed quickly and smoke containing fatal level of species as CO will be accumulated in a very short period. Two series of experiments were conducted in a compartment attached with a long hallway, in order to study features of species generation in an enclosed compartment and its influences on adjacent space. Results indicated that CO concentration level increased three times in 40 seconds intervals and fatal level of CO flowed into the adjacent hallway after the door was suddenly opened. As burning going on in an enclosed fire, more CO but less CO2 was generated out of the same amount of fuel consumed. In addition, the burning area effects on species generation were studied as well and data demonstrated that a critical value of burning area existed which could makes the fire most dangerous.