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PHOENICS在建筑环境和消防安全设计上的应用

CFD Applications of PHOENICS on Building Environment and Fire Safety Design

ARUP has been using PHOENICS software for many years to deal with various CFD modellings in building thermal comfort design, indoor environment, fire safety control strategy and so on and have gained good results recognised by the clients. This paper summarises some selected CFD studies carried out by PHOENICS recently in Arup.

The project introduced in this paper is an urban underground railway station. As the station will be occupied heavily by trains with diesel engines, the mechanical ventilation control system becomes critical in order to satisfy the thermal comfort air quality requirement inside the platform environment.

PHOENICS was applied to simulate air quality and the temperature under different pollutant emission rates by diesel engines during peak hours. The proper ventilation design including opening size,location and airflow rate were therefore identified for the assist of the mechanical ventilation system
design.

PHOENICS was also employed in the smoke control simulation during an emergency fire occurring at the sloped tunnel which connects the end of the platform and the outside ground railway. Two ventilation shafts were located at both ends of the connecting tunnels and results show how the two shafts can work efficiently under different operating strategies to prevent the platform from being effected by the backlayering of hot fume (smoke) from the fire.


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