Exhaust gas analysis
The objective of the exhaust gas study is to ensure that the exhaust gas from turbines etc. does not conflict with helicopter operations on the installation, or impact on the working and living environment on the installation. GexCon recommends this type of study to be performed as follows:
- Establish a realistic geometry model of the installation. This is important to be able to take into account the local wind flow patterns in the areas of interest. The basis for the FLACS geometry model may well be the project CAD model of the installation, as this may be converted into FLACS format.
- Run a set of FLACS dispersion simulations. This may be done for different exhaust gas properties (composition, temperature, rate, etc.), different wind conditions, different exhaust stack layouts, etc.
- Extract results from the exhaust gas simulations. A wide range of results may be produced from the dispersion simulations: temperature plots, concentration plots for different exhaust gas products (CO, CO2, NO2, etc.), etc.
Evaluate the results against any specified requirements or regulations.
The example figure below is a 3D plot that shows areas with a temperature of 5 degrees C or more above the ambient temperature.

Contact
Lars Rogstadkjernet
Phone no: +47 55 57 43 22
Email: larsr(at)gexcon.com
