QRA / SSR
Ventilation / Dispersion Assessment
Toxic Cloud Footprint and Flammable Exclusion Distances
Ventilation System Design and Analysis in Enclosed Spaces
Gas Building Infiltration Assessment
BC uses powerful and modern tools for addressing external and/or internal ventilation-dispersion assessment within complex geometries.
BC capability of ventilation / dispersion modeling accounts for both steady-state and transient simulations, and simulations near source behavior with or without momentum, and far-field behavior without momentum.
Accurate Toxic Cloud Footprints and Flammable Exclusion Distances provide precise information to decision-makers when addressing key topics such as human vulnerability, implementation of prevention/mitigation measures, and emergency preparedness.
Ventilation, which can be defined as air moving through an enclosed space, is the main mechanism for HVAC (Heating - Ventilation - Air Conditioning) systems to provide the desired indoor conditions.
Gas infiltration, along with ventilation, has a major influence on a building and its internal environment. The outdoor gas being infiltrated impacts the indoor air quality and the distribution of indoor air pollutants. The effectiveness of the ventilation is considered as part of a safety case or risk assessment, and it is used as a means for preventing the build-up of flammable or toxic gases in enclosed spaces.
Additionally, the proper design of the compartment system is an important requirement in industrial enclosures such as the gas turbine industry. Poor ventilation may cause non-uniform casing temperature distribution, and also allow the formation of hazardous gas pockets inside the enclosure.
Traditionally, rules of thumb and approximate hand calculations are used to dimension ventilation equipment capacities and parameters. However, this approach relies on established safety margins and late-stage physical testing and adjustments to guarantee requirements compliance. The typical result of this approach is the specification of oversized equipment and, consequently, an increase in upfront costs and energy consumption.
BC assessment allows precise forecasting of the performance of an external dispersion and/or ventilation system by modeling the physical phenomena, ambient conditions and the detailed complex geometry of the area.