Experiment of effects of supply and exhaust air on smoke temperature in atria

Explores the height range of fire source subareas for the atrium without sprinkling devices and the changing trend of smoke temperature with atrium height by theoretical analysis. Obtains the relationship curves of smoke temperature with the height of model atrium by smoke tests under natural ventilation, supply air in upper zone, exhaust smoke in lower zone and combined with upper supply and lower exhaust conditions. A comparison shows that there is minor deviation between the experiment results and theoretical analysis results.