Some practical application of natural smoking ventilation system in civil buildings is put forward according to the practice of smoking ventilation in China,based on the local standards in Beijing.

Study and application of natural smoke evacuation mode for metro section tunnel fire;

In this paper,performance-based fire safety design concept was adopted to analyze the fire safety objective that the smoke evacuation system of Laoshan bicycle racing centre should achieve,fire scenarios were designed and the performance of natural smoke evacuation system was studied by using CFD techniques.

It illustrates the importance and main contents of designing smoke abatement and evacuation facility in building,introduces the installation method of natural smoke evacuation and mechanical smoke evacuation,analyzes the causes of irrational installation in practical engineering,and proposes supervision management measures in its construction.

Numerical simulation and evaluation of natural smoke exhaust for straight corridor in high-rise buildings;

Describes briefly the basic concept about natural smoke exhaust calculation, such as thermal pressure,steady state fire, neutral level, flow coefficient, etc.

Quasi-steady state of natural smoke exhaust with natural air makeup under surrounding winds was studied using a simple two-layer zone model.

Describes the design approach to gravity smoke venting .

Analyses the restrictions on the installing scope and condition of some extraction devices and the condition of the natural smoke extraction and the design of secondary air.

Deals with heating, natural smoke extraction and natural ventilation problems.

By using the natural smoke extraction theory,based on the theoretical calculation parameter,and with a view to the architectural style,application safety and other factors,analyses and calculates the large space smoke extraction system of the theater,working out the technical parameters for natural smoke extraction.