Parking (Car park) Ventilation by Jet Fan

Construction and operation of commercial and office complex are highly booming, according to the optimal use of existing spaces in major cities. Due to the compression of space in such complexes, parking’s are designed with the assumption to use the most space possible. With large numbers of cars in car-park and enclosed spaces, it will be certainly necessary to design a very powerful ventilation system.
Design and implementation of the ventilation system are necessary for enclosed parking and car park, because of vehicle density. During normal operation in a car park, vehicles produce pollutant gases like carbon monoxide and NOx may cause serious damage to people inside the parking lot. There is also another risk in car parks, which is the possibility of fire. Considering the enclosed area inside the parking’s, the Incidence of fire will produce deadly gases and a huge amount of smoke. According to this situation, parking ventilation systems must have the capability to control the smoke and deadly gases and provide the required time for people to escape from danger. 

Air flow diagram inside a parking 

The old method for parking ventilation was using ventilation ducts in the roof. This method causes many limits in design and operation and in a fire situation, ventilation was not good enough.
New technology in this field is the application of jet fans for normal ventilation and smoke extraction in case of fire in parking. In fact, this technology represents the most innovative and cost-effective alternative to traditional ducted mechanical extraction systems. Carefully managing the project in all its development stages, which requires the fundamental use of fluid dynamics calculation programs - CFD - and also ensures that the system is working correctly. The jet Fan system provides either normal ventilation and can also be provided for smoke extract in case of fire in the parking lot.
After the final design, the performance of the jet fan can be evaluated using CFD in normal operation. Also by using PyroSim and FDS software the function of the installed jet fan could be tested during a simulated fire.
PyroSim is a graphical user interface for the Fire Dynamics Simulator (FDS). PyroSim helps companies to create and manage the details of complex fire models.

Car park ventilation-CFD simulation result- Air speed plot

PyroSim and FDS are both using as main software to simulate the fire reaction in different environments like buildings, parking lot, Car park, Subway, Tunnel, Cinema, Commercial office complex, and …
Using PyroSim we could define smoke detectors and sprinklers in a 3D model, in order to examine the current design in case of fire with both software.

 

 

ARA Co

Car park (parking) Ventilation Design 

Tunnel ventilation design

Parking CFD projects 

Fire simulation project using PyroSim (FDS) for Tunnel, Parking lot, Stadium and ....

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Tunnel ventilation and Industrial ventilation : http://tunnel-industrial-ventilation.blog.ir/page/Tunnel-Ventilation-design-Pyrosim-CFD-project