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Consulting Services > Power generation > Environment > Environmental services > Modelling

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Environmental models

KEMA STACKS and the KEMA TRACE MODEL®


KEMA-STACKS: the National Dispersion Model for air quality

In the European Union stricter standards for emission of fine particulates have been effective since 1 January 2005. In 2010 a new guideline for NO2 emissions takes effect. As of that date, all member states must comply with the new regulations.

KEMA has developed a numerical model that generates a more realistic and more detailed image of the distribution of air pollution. KEMA-STACKS quickly and effectively calculates the local environmental impact of plans such as new industrial areas and traffic corridors. The model also predicts the long term effects and incorporates the newest physics insights into air quality.

Using KEMA-STACKS, you can support your expansion plans and permit applications with solid figures.

The model provides insight into the emission of:

  • fine particulates (PM5 and PM10)
  • oxides of nitrogen
  • sulphur dioxide
  • aromatics. 

 

References
Our references are outstanding. In 2004 and 2005 we performed dispersion calculations for 20 projects and tested the results to the environmental Bill. A selection of the most recent projects speaks for itself.

  • development of industrial estates and housing estate Stadshagen in Zwolle
  • effect of 80 kilometre zones for 10 highway bottlenecks
  • development of industrial estates Lorentz-Oost and Waterfront in Harderwijk
  • industrial estates WEOM, Ominsport and Zuidbroek in Apeldoorn
  • traffic intensity in Amersfoort, Tilburg and Landsmeer
  • housing estate Hornbach and highway near Nieuwegein. 



KEMA TRACE MODEL®: for the calculation of residue and flue gas composition

The KEMA TRACE MODEL® is an empirical and statistical model. It is developed on the basis of more than 20 years of experience with mass balance studies at coal-fired power plants in the Netherlands. In the eighties 16 mass balance studies were conducted for 100% coal firing and from the nineties on more than 25 during co-combustion. In 2006 an update of the model is released (version 5.0).

Features

  • calculation of the composition of residues and flue gases of coal-fired power plants
  • 4 main components, 10 macro elements and 36 micro and trace elements

The composition of bottom ash and fly ash is examined according to aspects like:

  • technical demands V1, V2 andV3
  • the EWC (European Waste Catalogue) (EURAL)
  • leaching demands (BSB)
  • radioactivity and occupational health aspects (TLV-values)

The composition of the emitted flue gases is examined according to the limits of the LCP, the (Dutch implementation of the) EU Directive 2000/76/EC on the incineration of waste and of the permit. Via simple interaction between the model and an Excel spreadsheet, the results of model calculations are easily available for further use.

Experience
The KEMA TRACE MODEL® for pulverized coal combustion plants is used by KEMA to calculate the consequences of coal firing and co-combustion with respect to ash quality and emissions. Results of the model calculations are used in official documents in discussions with governmental authorities for environmental impact statements and in license applications.

Version 5.0 for Pulverized Coal Firing
System requirements: Pentium 2, Excel 2000 or higher

For more information please contact us.









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