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What data is available from the Research Report – Firing of Coal and Municipal Waste Sludges for Utility Boilers?
Date posted:
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Post Author
espadmin
1. Sources
The present Combustion File is part of the cluster of CFs produced within the literature survey phase of the industrial sponsored research and development project PowerFlam1 and is confidential to the participants registered for that project.
This CF is specifically concerned with the research project:
Morgan, D.J., Dacombe P., and van de Kamp W.L. (1997): Firing of Coal and Municipal Waste Sludges for Utility Boilers, which is published. AFRC spring meeting, April 1997, IFRF Doc No K70/y/113, IJmuiden, The Netherlands.
2. Background
· This combustion file is concerned with the provision of combustion related data to the sponsors.
· In this html file the source of the data is summarised in section 4 below, in order to give the reader a general overview of the way the data was collected.
· Fuel and related data, prepared for calculation, are presented in individual Microsoft Excel Worksheets, all contained within a Workbook.
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· All credits and sources, and where necessary, instructions/advice for data use, are presented in this html file. These are not necessarily reproduced in the Excel Work Sheets.
3. Abstract
The reduction of emission of pollutants such as NOx, SO2 and particulates from coal fired utility boilers, whilst maintaining food combustion efficiency, is one of the key issues in present utility boiler development. This paper presents the results of semi-industrial scale (2.5 MWth) furnace studies using swirl stabilized burners in a boiler chamber simulator with internal dimensions of 2x2x6.3 m. The experimental burners were designed to be flexible in terms of geometry and fuel-air staging. They incorporated a number of channels which were used for the primary fuel (in this case coal), and the reburn fuel, which included municipal sewage sludge, high of low volatile matter coal or natural gas.
4. Synopsis
Style: |
Experimental; |
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Scale: laboratory – [industrial Semi-industrial] |
Semi-industrial |
2.5 MWth furnace using swirl stabilised burners in a boiler chamber simulator with internal dimensions of 2x2x6.3 m. |
Data on combustor |
Schematic fig |
Facility used for firing blends Facility used for internal fuel staging with natural gas or coal Facility used for faring with municipal sewage sludge |
Company/Institute |
IFRF Research Station, IJmuiden, The Netherlands |
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Combustion type |
Co-firing; Pulverised coal combustion |
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Main fuel |
Coal |
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Substitute fuel |
Municipal Sewage Sludge, high or low volatile matter coal or natural gas |
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Fuel data |
Elemental analysis |
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Experiments |
Measurements of the following gases emissions: NOx, CO and CO2 under different parameters |
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Results |
Effect of the reburn fuel velocity and injection made on NOx Effect of internal and “classical” reburn on NOx Effect of coal properties on NOx Effect on primary stoichiometry (lp) on NOx Effect on co-firing ratio on NOx for type 1flames Effect of air staging on type 1flames with Göttelborn coal Effect of internal fuel staging on NOx Effect of fuel fraction on NOx Effect of high velocity air on NOx |