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Contenido archivado el 2024-04-30

A POWER GENERATION PLANT TO PRODUCE 5 MWE BY UTILISING FLUIDISED BED COMBUSTION TECHNOLOGY TO BURN FORESTRY AND MUNICIPAL RESIDUES

Objetivo

The proposed study aims at installing a power station to produce 5 MWe of electricity utilising the biomass waste obtained from the annual cleaning of the forestry areas. In addition, up to 15% of non-toxic MSW will be added because there is too much excess in this zone for which there is no immediate solution. It will use a fluidised bed boiler which will be connected to a condensing steam turbine with a bleed to extract at low pressure to utilise for central heating. The project will be located in the zone of Ourém, which is 100 km to the North of Lisbon. The main reason for forestry fires is the accumulation of residues, which are left unattended because the amounts involved are large and consequently their disposal creates difficulties. The collection of forestry biomass needs to be organised by local authorities and in that direction there are already important initiatives being taken by municipal authorities. Furthermore, the government intends to subsidise those that are willing to start cleaning of forestry areas.

The project aims at installing a small-scale power station to produce 5 MWe of electricity utilising forestry biomass waste. The process involves direct combustion of wastes in a fluidised bed boiler which will be designed to raise steam at 40 bar and 450°C. The thermal capacity of the boiler will be 24 MW. The amount of fuel required for this system is 42000 tonnes of biomass with 15% of humidity or 71500 tonnes of biomass with 50% humidity. In addition an amount of 9000 tonnes of MSW with a humidity level of 50% will be added whenever such waste is delivered to the plant. The turbine will be of the bleed type and at 2 bar, 50% of the steam will be extracted for use in different locations that belong to the Municipal Authority. The rest of the steam will be condensed and will be recirculated back to the boiler.
Main components of the system are: 1) the biomass preparation system, 2) the daily storage and the feeding, 3) the boiler, 4) the gas cleaning involving a cyclone and bag filters, 5) the water treatment system, 6) the condensing steam turbine with a bleed, 7) the connection to the national grid, 8) the chimney.

Convocatoria de propuestas

Data not available

Régimen de financiación

DEM - Demonstration contracts

Coordinador

CAMARA MUNICIPAL DE OUREM
Aportación de la UE
Sin datos
Dirección
PRACA DO MUNICIPIO
2490 OUREM
Portugal

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Coste total
Sin datos