The KEMA TRACE Model

The KEMA TRACE Model, together with the Annual Organic Components Specification model, can be used to forecast annual average emissions of inorganic components to the air from coal-fired plants.

In preparing annual environmental reports businesses can make use of two models:
- the Annual Organic Components Specification model (JOS in Dutch)
- the KEMA TRACE Model (KTM).

The JOS and KTM can be used to forecast annual average emissions of inorganic components to the air from coal-fired power plants. The model calculations are based on the plant’s fuel composition and a number of operational parameters, including the type of flue gas cleaning system in place. The KTM is also widely used to perform calculations for inclusion in environmental impact statements and permit applications, and for use in negotiations with governments.

Use of the models JOS and KTM is consistent with the conditions governing the determination and reporting of emissions under European and national regulations. Such documents indicate that the use of models and emission factors often yields a better and more accurate estimate of a plant’s emissions than occasional emission measurements.

KEMA’s TRACE Model is based on the broad experience acquired in the Netherlands during the past 25 years. The behavior of gaseous micro- and trace-elements can be best described by means of the relative parameters "vaporization percentage" and "FGD removal degree". These parameters appear to be general valid for Dutch coal-fired power plants. The KTM uses an extensive database with trace elements and is a collection of measured data of trace element concentrations in the various ingoing and outgoing streams of coal-fired power plants. The data are used to make predictions of residue composition and emissions to the air. The model has also been validated for co-firing at levels up to 25 per cent dry mass.

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.

You will benefit from the KTM modeling results by:
- knowing your emissions in advance
- knowing the effect of co-firing of secondary fuels
- having more accurate results than a one-time, calibrated measurement
- presenting results from a widely accepted model by producers and authorities.