1. Sources

The present Combustion File is part of the cluster of CFs produced within the literature survey phase of the industrial sponsored research and development project PowerFlam1 and is confidential to the participants registered for that project.

This CF is specifically concerned with the research project:

L. Bonfanti, S.Pasini, N. Pintus. (2000): Co-combustion of Coal and RDF in Large Utility Boilers, which is published within “The Use of Coal in Mixture with Wastes Residues” ll conference, Cottbus, 19-20 October 2000.

2. Background

·         This combustion file is concerned with the provision of combustion related data to the sponsors.

·         In this html file the source of the data is summarised in section 4 below, in order to give the reader a general overview of the way the data was collected.

·         Fuel and related data, prepared for calculation, are presented in individual Microsoft Excel Worksheets, all contained within a Workbook.

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·         The data in these worksheets are protected – thus the reader cannot change the worksheet without knowledge of the protection password.

·         However the reader can copy and paste the data into his/her own project work book as required – at this point the accuracy and integrity of the data becomes the responsibility of the reader. Included in this workbook are copies of the abstract and synopsis for reference purposes.

·         All credits and sources, and where necessary, instructions/advice for data use, are presented in this html file. These are not necessarily reproduced in the Excel Work Sheets.

3. Abstract

ENEL is carrying out a project to demonstrate the technical and economical feasibility of co-firing RDF (Refuse Derived Fuel) with coal in a large utility boiler, unit 4 of Fusina power station (320 MW_e). The project is conducted with the financial support of the EU within the framework of the THERMIE programme (contract n^o SF/00115//96/) and with the collaboration of European partners: Draukraft (Austria), Elsamproject (Denmark), RWE and University of Stuttgart (Germany).

The project will make it possible to define the maximum fraction of RDF, in terms of energy input, that can be co-fired with coals without affecting boiler performance or damaging the existing components and respecting at the same time the mission limits fixed by the Italian law.

This paper describes the activities conducted so far, with a particular emphasis given to pilot scale co-firing tests conducted at Stuttgart University, to evaluate inorganic and organic micro-pollutant emissions.

It is expected to start full-scale co-firing test at Fusina by the end of 2000.

4. Synopsis