Objective
THIS RESEARCH PROJECT COVERS THE DESIGN, CONSTRUCTION AND OPERATION OF A FAST EXTERNAL CIRCULATING FLUIDIZED BED FOR THE COMBUSTION OF A WIDELY SPREAD FUEL RANGE FOR STEAM RAISING. HERE THE LIGHTER PARTICLES ARE ENTRAINED BY THE AIR FLOW THROUGH THE BED, SEPARATED FROM THE AIR BY A CYCLONE AND RETURNED TO THE FLUIDIZED BED. THE EMPHASIS IN THIS PROJECT IS ON A LOW DEGREE OF FUEL TREATMENT (BOTH SMALL AND LARGE PIECES CAN BE BURNT EFFICIENTLY SO THAT CRUSHING OF THE FUEL IS NOT NEEDED) AND A GOOD BURN OUT WHICH IS ENSURED BY LONGER AND MORE EFFECTIVE MIXING IN THE BED. THE SYSTEM IS ALSO CHARACTERISED BY LOW EMISSION VALUES OF NOXIOUS POLLUTANTS AND SIMPLE CONSTRUCTION.
THE PILOT PLANT HAS A CAPACITY OF 1 MW, CONTAINS DESULPHURIZATION FACILITIES, PRODUCES STEAM AT 450 DEGREES C AND 20 BARS AND CAN BE FIRED WITH COAL AND LOW GRADE FUELS.
THE EXPERIMENTAL PROGRAMME INVOLVED THE DETERMINATION OF : THE HEAT TRANSFER ACROSS THE BOILER SURFACES; THE REQUIRED AUXILIARY POWER OF THE PLANT; THE EFFICIENCY; THE RESPONSE RATE OF LOAD ALTERATION; THE BEHAVIOUR WITH RESPECT TO EROSION AND TO CORROSION; AND THE EMISSIONS PRODUCED.
THE ENLARGEMENT OF THE CROSS SECTION OF THE FURNACE IN THE LOWER PART RENDERED ANY FUEL AND ADDITIVE CONTITIONING UNNECESSARY. WIDELY DIFFERENT COAL GRADES COULD BE BURNT IN THIS SYSTEM WITH HIGH EFFICIENCY AND MODERATE POLLUTANT EMISSION.
WITHIN A PERIOD OF 768 OPERATING HOURS, THE BOILER PLANT, THE PRIMARY/SECONDARY AIR-RATIO AND THE CALCIUM/SULPHUR RATIO WERE VARIED. ALL PLANT COMPONENTS HAVE GIVEN PROOF OF THEIR FUNCTIONAL CAPABILITY. THE RESULTS ALSO DEMONSTRATE THAT THE SYSTEM WAS ECONOMICALLY ATTRACTIVE.
Fields of science (EuroSciVoc)
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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Coordinator
5270 GUMMERSBACH
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.