Skip to main content
Vai all'homepage della Commissione europea (si apre in una nuova finestra)
italiano italiano
CORDIS - Risultati della ricerca dell’UE
CORDIS
Contenuto archiviato il 2024-04-15

IDENTIFICATION OF CHARACTERISTICS WHICH PROVIDE MAXIMUM COMBUSTION EFFICIENCY

Obiettivo

DISCUSSIONS WITH COMPANIES WHICH BURN COAL IN STEAM GENERATOR UNITS INDICATE THE INADEQUACY OF COAL SPECIFICATIONS. THE COMBUSTION BEHAVIOUR OF COALS CANNOT BE PREDICTED.
IT IS EXPECTED THAT THE MORE DETAILED ANALYSIS OF STRUCTURES AND/BEHAVIOUR OF COAL MATERIAL AND ASSOCIATED MINERAL MATTER WILL INDICATE THE RELATIVE IMPORTANCE OF THE ADDITIONAL SPECIFICATIONS TOWARDS PREDICTIONS OF COAL COMBUSTION CHARACTERISTICS. MORE SO AS COAL SUPPLIES CHANGE MORE RAPIDLY THAN BEFORE ON MARKETS.
The possibility of using laboratory petrographic studies and thermogravimetric analysis (TGA) reactivities in predicting industrial combustion behaviour expressed by entrained flow reactor (EFR) experiments was examined. These come close to the conditions of power generation combustion and provide burn off measurements giving kinetic evaluation of the reaction rate.

The results suggest that in assessing a coal for pulverised fuel combustion, 3 factors should be considered:
rank for similar petrographic composition;
petrographic composition at the same rank;
weathering.
If petrographic composition is similar, rank is important because reactivity decreases as rank increases, particularly for values of %RO below unity; through the bituminous range the decrease is inversely proportional to %RO. On the other hand, at the same rank coals composed principally of vitrinite macreals can have a reactivity 50% greater than those which are mainly inertinite. This variation amounts to half of the change attributable to rank throughout the bituminous range.

Also, weathering can increase the reactivity of bituminous coals by up to 25% over periods of a year. The use of an oxidation quotient may aid in assessing the extent of weathering.
THE PURPOSE OF THE PROJECT IS TO IDENTIFY COAL PROPERTIES WHICH RELATE TO THE COMBUSTION CHARACTERISTICS OF COAL FEEDSTOCKS IN STEAM GENERATOR UNITS.

BECAUSE PROXIMATE AND ULTIMATE ANALYSES OF COALS, INCLUDING CALORIFIC VALUES, CANNOT PREDICT COMBUSTION BEHAVIOUR, IT IS NECESSARY TO EXTEND RESEARCH TO INCLUDE THE IMPORTANCE OF MICRO-LITHOTYPES AND MACERALS IN COALS AND COAL BLENDS. IN ADDITION, THE MANNER IN WHICH THE PARTICLE SIZE DISTRIBUTIONS AND CHEMICAL COMPOSITION OF MINERAL MATTER INFLUENCE THE STRUCTURE AND HENCE REACTIVITY OF CHAR/COKE SURFACES DURING COMBUSTION WILL BE ASSESSED.

Programma(i)

Programmi di finanziamento pluriennali che definiscono le priorità dell’UE in materia di ricerca e innovazione.

Argomento(i)

Gli inviti a presentare proposte sono suddivisi per argomenti. Un argomento definisce un’area o un tema specifico per il quale i candidati possono presentare proposte. La descrizione di un argomento comprende il suo ambito specifico e l’impatto previsto del progetto finanziato.

Dati non disponibili

Invito a presentare proposte

Procedura per invitare i candidati a presentare proposte di progetti, con l’obiettivo di ricevere finanziamenti dall’UE.

Dati non disponibili

Meccanismo di finanziamento

Meccanismo di finanziamento (o «Tipo di azione») all’interno di un programma con caratteristiche comuni. Specifica: l’ambito di ciò che viene finanziato; il tasso di rimborso; i criteri di valutazione specifici per qualificarsi per il finanziamento; l’uso di forme semplificate di costi come gli importi forfettari.

CSC - Cost-sharing contracts

Coordinatore

UNIVERSITY OF NEWCASTLE UPON TYNE
Contributo UE
Nessun dato
Indirizzo

NE1 7RU Newcastle upon Tyne
Regno Unito

Mostra sulla mappa

Costo totale

I costi totali sostenuti dall’organizzazione per partecipare al progetto, compresi i costi diretti e indiretti. Questo importo è un sottoinsieme del bilancio complessivo del progetto.

Nessun dato

Partecipanti (1)

Il mio fascicolo 0 0