Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español español
CORDIS - Resultados de investigaciones de la UE
CORDIS
Contenido archivado el 2024-04-15

ADVANCED ATOMISER DEVELOPMENT FOR COAL WATER SLURRY COMBUSTION

Objetivo

THE OBJECT OF THIS WORK IS TO IMPROVE ATOMISATION TECHNIQUES FOR SLURRIES AND, BY A BETTER UNDERSTANDING OF PARTICLE BEHAVIOUR AND HEAT TRANSFER IN THE NEAR FIELD MIXING REGION LOCAL TO THE ATOMISER TIP, TO LEAD TO THE DEVELOPMENT OF A RANGE OF BURNERS THAT REQUIRE LESS SUPPORT FUEL AND THUS EXTEND THE POSSIBILITY FOR SUCCESSFUL OIL FIRED BOILER CONVERSIONS.
Coal water slurry burners have achieved only a limited success in small applications because of problems caused by lower flame temperatures, especially at turndown, where a supplementary fuel may be required to ensure continuous combustion. Small industrial and shell boilers are the most appropriate size for conversion from oil to coal water slurry firing. It was considered that, by using modern atomiser development and measurement techniques together with advances in the field of computational fluid dynamics, improvements could be made if a better understanding of the atomization of, and heat transfer to, the fuel particles in the region close to the burner tip was achieved. A programme of work has been completed which used both analytical and experimental techniques to examine atomiser performance, the interaction of fuel particles which takes into account turbulence and mixing in the combustion air stream and the heat transfer in the fuel dry out region. A twin register burner design was successfully fired, using a coal water mixture fuel, in a test facility which represented the typical combustion chamber size found in small industrial and shell boilers.

An atomiser has been developed to fire coal water mixtures in the form of a slurry. This can be used as a replacement for fuel oil.
Development of the atomiser and aerodynamic design using a combination of modern physical modelling and mathematical modelling techniques has led to the the design of a coal water slurry burner which has fired successfully on a commercial fuel without the need for gas support. The combustion performance was satisfactory with emissions lower than required by current European Economic Community (EEC) legislation. It was hoped to evaluate this burner on a wider range of fuels but these have not been made commercially available as a result of the relatively low oil prices.
A prototype was made available on 06/22/92
THE PROJECT IS DESIGNED TO IMPROVE THE UTILIZATION OF HEAT FOR PARTICLE DRYOUT IN THE NEAR FIELD REGION LOCAL TO THE BURNER NOZZLE. THIS IS NECESSARY BECAUSE PRESENT SYSTEMS CAN REQUIRE UNECONOMIC QUANTITIES OF SUPPLEMENTARY FUEL OR ATOMISING STEAM TO MAINTAIN FLAME STABILITY ESPECIALLY DURING START-UP OR PART LOAD OPERATION. THE PROJECT WILL EXTEND NEI EXPERIENCE IN SLURRY COMBUSTION TECHNOLOGY AND IMPROVE TECHNIQUES OF HEAT UTILIZATION AT THE FLAME ROOT AND ATOMIZATION SO THAT CARBON BURNOUT AND COMBUSTION EFFICIENCY ARE IMPROVED. LIAISON WITH SHEFFIELD UNIVERSITY IN THE COMPUTATIONAL MODELLING OF PARTICLE DYNAMICS AND HEAT TRANSFER WILL ENSURE TECHNOLOGY TRANSFER AND THE EFFECTIVE USE OF MODERN PREDICTIVE TECHNIQUES TO GUIDE THE EXPERIMENTAL WORK. THE RESULTS OF THE EXPERIMENTAL PROGRAMME WILL BE EXTENDED INTO THE DESIGN OF A RANGE OF SLURRY FIRING EQUIPMENT LEADING TO A PROTOTYPE TEST USING THE COMBUSTION RIG AT DERBY.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..

Para utilizar esta función, debe iniciar sesión o registrarse

Programa(s)

Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.

Tema(s)

Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.

Datos no disponibles

Convocatoria de propuestas

Procedimiento para invitar a los solicitantes a presentar propuestas de proyectos con el objetivo de obtener financiación de la UE.

Datos no disponibles

Régimen de financiación

Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.

CSC - Cost-sharing contracts

Coordinador

NEI International Combustion Ltd
Aportación de la UE
Sin datos
Dirección
NEI House
NE3 3SB Newcastle upon Tyne
Reino Unido

Ver en el mapa

Coste total

Los costes totales en que ha incurrido esta organización para participar en el proyecto, incluidos los costes directos e indirectos. Este importe es un subconjunto del presupuesto total del proyecto.

Sin datos
Mi folleto 0 0