FPEC performs explosion, fire spread, smoke generation and diffusion, leakage gas dispersion simulation by using FDS developed by NIST and CFD solvers .

1. Our company has deep knowledge and abundant experience about petrochemical plant disasters and fire prevention systems, which allow us accurately understanding on what a customer is requesting us and reflecting them in the numerical analysis model. We will discuss with a customer with technical terms commonly used in petrochemical plants, not only with technical terms specific to numerical analysis.
2. Indoor gas dispersion and explosions can only be done by numerical simulations, and in such a case, we are proposing solutions to problems with combination of the numerical solution and our leak / evaporation program.
3. Even outdoors, numerical analysis is suitable for local dispersion areas.  We will propose an appropriate method on a case-by-case basis.
   As an example, please see Example 1 [Jet Flow from an Atmospheric Vent and Gas Dispersion]
4. In addition to the standard output such as movies and gradation maps like below figure-1, we also submit in a concentration contour map as below figure-2 , that makes it easy to use the simulation results.Our proposed concentration contour map is created by AutoCAD, based on the calculation results obtained by numerical analysis. 
5. For numerical analysis calculation, we are cooperating with Advancesoft Corporation , or Institute of Computational Fluid Dynamics.

The figures below are the example of a concentration map.

Our proposed concentration contour map (Figure-2) is the map created by AutoCAD, based on the calculation results obtained by numerical analysis.  Each color shows a range above a certain input concentration and is very clear, so we think it is very effective in use.

Example 1 [Jet Flow from an Atmospheric Vent and Gas Dispersion]

By opening the vent valve, gas is rushed into the empty pipe and its pressure and temperature vary with flowing up to the outlet and discharged to the atmosphere. The jet velocity, temperature and the gas density in the pipe were calculated thermodynamically and the gas dispersion in the atmosphere were simulated by numerical method.
Usually, a jet velocity will be over sonic velocity, the dispersion behavior will be seriously affected by the jet velocity.