Our CFD services are provided in partner with ANSYS Startup Program
Benefits of CFD Modeling
- Reduces costs—CFD modeling allows designers to predict results before installation, avoiding costly errors
- Saves time—CFD modeling eliminates time consuming on-site trial and error situations and unnecessary costs
- Provides detailed insights—CFD modeling gives insight into furnace operation that cannot be obtained through testing/measurement
- Identifies furnace operational problems and solutions
- Enables pre-installation testing of fuels, equipment, and accessories
Our Experience
CFD modeling is used to: 1) validate the baseline furnace combustion performance and 2) facilitate design of the air pollution control system for a particular unit.
We have developed our own modelling team and capability. The types of models include: 1) non-reacting flow; 2) fuel combustion and reacting flow; and 3) pollutant formation (i.e., NOx, SOx, LOI, CO, etc), with fuel ranging from coal, biomass, oil to natural gas. We have also analyzed a wide range of boiler types from pulverized fuel (p.f.) boilers (tangential or wall-fired) with a wide range of burners to fluidized bed and stoker units. Our models have addressed a variety of chemical-reacting flows associated with fuel combustion and reacting flow:
- Solid fuel combustion chemistry (devolatilization, char oxidation kinetics)
- Gas volatiles (i.e. gaseous fuel) combustion
- CO finite rate chemistry
- Soot formation chemistry (heavy oil combustion)
- NOx formation chemistry (thermal NOx, fuel-N conversion chemistry)
- SOx formation chemistry (SO2 and SO3) and reduction by limestone (CaO+SO2)
- Urea and ammonia chemistry to reduce NOx
- Sorbent chemistry for SO2, Mercury, and HCl capture.
RAS’s PhD level experts have modeled over 90 models on a wide variety of boiler configurations:
- Circulating fluidized bed (CFB)
- Tangential-fired
- Wall-fired
- Cyclone
- Stoker/grate fired
- Kilns
- Various burner types
and fuel types:
- Variety of coals
- Biomass
- Biomass co-fired with coal
- Waste products
- Oil
- Natural Gas
- Waste and landfill gases