Abstract
The pressurization smoke control system has been commonly used as a smoke control system at the emergency stairs of high-rise buildings. However, a higher possibility of overpressure between the lobby and the accommodation or pressure drop in the lobby could lead to failure in achievement of the purpose of pressurization system, particularly when supplying the leakage and supplementary air flow through one air-supply path at a time. To improve this particular issue, the devise configurations, as well as the different ways to supply the leakage and supplementary air flow through the different flow passages have been proposed. The performance of the trial product was evaluated on the test bed, ultimately providing a safe evacuation environment if high-rise buildings fired.
Highlights
With increased advancement and integration of the cities, the demand for large-scale, high-rise and complex buildings has been on the rise, and the number of buildings vulnerable to fire has increased
To operate the pressurization smoke control system of separate air-supply type effectively, the air supply damper needs to be developed as a key component to provide and control the leakage and supplementary air flow depending on the pressure formation conditions
The pressurization smoke control system has been commonly used in Korea to prevent the penetration of the smoke from entering the emergency stairs
Summary
With increased advancement and integration of the cities, the demand for large-scale, high-rise and complex buildings has been on the rise, and the number of buildings vulnerable to fire has increased. The results drawn from the field performance evaluation were analyzed; and as a result, a separate air-supply method has been proposed as a way to improve the existing pressurization smoke control system of stairwell. The issues associated with the existing pressurization smoke control systems are the pressure drop or overpressure between the accommodation and the lobby upon the opened or closed condition of the door As to improve this issue, the devise configurations, as well as the different ways to supply the leakage and supplementary air flow through the different flow passages have been proposed as follows
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