ETUII boiler chamber
MORE, s.r.o. successfully designed primary measures (target below 200 mg/Nm3) for reduction of NOx pollutions in project of EPRII or ETUII power-plant total renewal.

CFD models

We offer specialized calculations with the help of mathematical flow modelling, so-called CFD (Computational Fluid Dynamics).
CFD is a branch of mechanics that uses numerical analysis and algorithms to solve difficult problems concerning internal and external flow of fluids (liquids, gases, their mixtures or mixtures with particles).
CFD uses numerical methods and computers to solve equations describing a specific physical problem, which enables the engineers to significantly shorten production time of a product or its optimization. Savings are achieved by the design of a solution with an optimized function, comparison of several possible solutions, parameter optimization of a selected solution or by analysis of difficult cases before realization of the actual equipment or before changes to the equipment are made.
MORE, s.r.o. applies this modern approach to support the development of its own solutions in classic power generation and other fields.
Our CFD services provide added value to the production quality of the equipment that is used by our customers.

MORE, s.r.o. also provides specialized CFD analyses to the areas listed below.
For pulverized coal-fired boilers, we apply the CFD analyses for optimization and new designs for the following areas of technology:

  • Grinding in the beater wheel mill circuit
  • Classifier in the beater wheel mill circuit
  • Pulverized coal pipeline that transfers powdered fuel to the burners
  • Flue gas recirculation suctions
  • Blending of air masses, junctions
  • Furnace with heating surfaces and combustion
  • Rear ducts, second paths, dust sedimentation, abrasion
  • Flue gas pipes in front and behind an electrostatic precipitator (ESP) and circulation in an ESP
  • Flue gas and air tract
  • Influx of flue gas into cooling towers
  • Burners internals or detailed analysis of burners including combustion

CFD analyses of the units mentioned above typically focus upon:

  • Prove of concept of an furnace firing system design of primary measures to reduce NOx pollutions
  • Modelling and disposition of boiler furnaces with burners and zoning of combustion air
  • Modelling of construction solutions for a coal mill classifier to improve the performance and fineness of grinding
  • Modelling of pulverized coal concentrators to redistribute pulverized coal into burners
  • Modelling of heating surfaces with respect to thermal usage and suppression of abrasion and transfer
  • Modelling of space under the grate, flue gas and air pipes, chimneys
  • Modelling of modifications and construction solutions of separation equipment to increase performance
  • Modelling of desulfurization equipment or measures to reduce fouling and improve the performance
  • Modelling and optimization of pressure losses in flue gas and air tracts

We have a flexible team that can address problems in addition to those listed above.