Objectif
The scientific objective of this proposal is to develop an integrated On-line tool to locally monitor and detect slagging and fouling in the whole boiler including convective and radiative part in order to allow selective cleaning of the heat exchangers.
The main elements of the integrated tool will be:
- Utilisation of process data like flow rates, temperatures etc. of the power plant, existing signals of the heat flux sensors of the Teruel power station (Spain) and acoustic pyrometry measurements of the furnace exit temperature (distribution)
- New fouling sensors for convective heat exchangers
- 3-dimensional CFD-modelling of the combustion, fluid flow and heat transfer in the radiative and convective heat exchangers of the boiler and calculation of ash deposition to indicate areas of ash deposition
- Combination of the CFD-modelling with thermodynamic modelling of the water steam cycle