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CO concentration
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Finding the best locations for diffuser to reduce CO concentration in an underground parking garage
using CFD technique
Background: Fully enclosed, underground, 7 level parking structure. Test scenario was that 125 cars are waiting to exit for a long time. These cars emit heat as well as CO into garage space. Main concerns were: CO concentration distributions, critical speed limitation, and speed distribution in the excavation area to prevent mold growth. Five different configurations of diffusers are employed to compare while total CFM is maintained. CFD data helped engineers to make the right configuration.
Design optimization