Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Carbon Monoxide Dispersion in Enclosed Car Parks: Pollutant Source Modelling Methods

Jason Gaekwad1
1Mott MacDonald, Melbourne, Australia

Abstract: Adequate ventilation of enclosed car parking areas is required to ensure concentrations of vehicle exhaust pollutants (e.g. Carbon Monoxide) do not reach a level high enough to threaten the safety of car park occupants. With the development of accessible Computational Fluid Dynamics (CFD) tools, car park ventilation design is shifting from a code-based approach to a performancebased approach, with CFD methods used to confirm the safety of the proposed design. A comparison of three pollutant source modelling methods for underground car parks has been conducted using CFD methods. The modelling shows that pollutant concentration results vary considerably (maximum concentration variation of over 24 times) between modelling methods. This work represents an initial study into underground car park pollutant source modelling methods with the view of improving the safety and accuracy of performance based underground car park ventilation designs.
Pages: 654 - 661