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ECSC-111
Improvement of the Availability and Reduction of the Operating Costs of Coal Combustion Plants (ECSC COAL TECH)
Title of Programme
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TECHNICAL COAL RESEARCH PROGRAMME
TARGET AREA B4.A PREDICTION OF ASH SLAGGING AND FOULING
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Financing Code for Project
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7220-ED753
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Project start year - end year | 1997 - 2000 |
Financing organisation |
EUROPEAN COMMISSION RESEARCH
DIRECTORATE-GENERAL XVII, ENERGY
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Coordinator | Insituto Nationales de Carbon (INCAR-CSIC) |
Other partners |
CIRCE
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Budget / APTL Budget | (NA) € / 110.000,00€ |
Scientific Manager / Project researcher | A. G. Konstandopoulos |
Project website | - |
Summary description |
The effects associated to the mineral matter contained in the coal are the main single-factor affecting the efficiency and availability of coal-fired boilers. Their consequences include the fouling of convective surfaces, formation of slag deposits and high-temperature fireside corrosion, all of which result in efficiency losses, high maintenance costs and reduced availability of the unit.
Prediction and control of fouling rates and resulting deposit properties are essential for optimal power plant maintenance planning, improved energy efficiency and the development of rational methods to assess the fouling tedency of different fuels. Traditional approaches have been mainly based on the use of empirical indices for the assessment of the severity of fouling/slagging problems. These simplified methods can be effective in certain cases, but their lack of generality prevent their use with any type of coal (or mixtures of different coals) or in any combustion configuration.
The present project is aimed at the development and utilisation of testing and modeling tools for the analysis and prediction of the behaviour of the mineral matter in coal combustion. The proposed research addresses the imperative need for experimentally validated, engineering optimisation tools, able to predict the transformations of the inorganic material along the combustion chamber, and the dynamics of net deposit properties for surfaces exposed to the high temperature products of ash-bearning coal combustion.
The main objectives of the work are:
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