The purpose of mechanical ventilation analysis is to assure that ventilation rates in mechanically ventilated areas fulfil applicable requirements for operation.

The CFD tools FLACS or FLUENT may be used in these analyses, where a 3D model of the installation is made and ventilations simulations are run for relevant ventilation rates. The simulation results, given as air changes per hour for a given enclosed area, are evaluated against requirements (e.g. minimum 12 air changes per hour). Further, it can be important to consider so-called “stagnant zones” in mechanically ventilated areas, where ventilation is very low.