PREDICTION OF NOX EMISSIONS FOR FBC BOILERS BY EMPIRICAL MODELS ? THE INFLUENCE OF SCALE-UP

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F14%3A00224237" target="_blank" >RIV/68407700:21220/14:00224237 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
PREDICTION OF NOX EMISSIONS FOR FBC BOILERS BY EMPIRICAL MODELS ? THE INFLUENCE OF SCALE-UP
Original language description
Reliable prediction of NOX emissions can provide useful information for boiler design and fuel selection. The disadvantages and complexity of recently used kinetic NOX prediction models could be overcome by developing a simple empirical model. However, existing empirical models for prediction of NOX are used exclusively for PCC boiler. This paper aims to modify some commonly used PCC empirical NOX prediction models ? Pohl´s mdoel and Ibler´s model ? to fit the FBC boilers. The data from large scale FBCunits are used for empirical models modification and compared with the data from pilot scale 0,5 MWt FBC boiler. The reliability of proposed modifications to physical models and the influence of scale-up are discussed. The maximum reliability with R2= 60,86 % was achieved by modified Ibler´s model. If fuel mixtures were excluded the reliability increased to 81,36 %. The NOX emissions of pilot scale boiler were higher compared to large scale units. However, these values were in agreement
Czech name
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Czech description
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Type
O - Miscellaneous
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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