Abstract:

In accordance with the current relevant national standards and with reference to the foreign standards, the mass flow rate and temperature of the plumes have been elaborately calculated and compared under two typical fire scenarios in atrium of buildings. It is suggested that designers should fully understand and utilize the development and change rules of the atrium smoke plume, taking the building characteristics into account,adopt pertinent technical measures to optimize the atrium smoke exhaust system design, so as to improve the effectiveness of the system.

Key words: atrium, plume, mass flow rate, temperature change, smoke exhaust system optimization