Characterization and quantification of deposits build up and removal in straw suspension fired boilers

Peter Arendt Jensen, Muhammad Shafique Bashir, Stig Wedel, Flemming Jappe Frandsen, Johan Wadenbäck, Søren Thaaning Pedersen, Kim Dam-Johansen

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Abstract

This project deals with ash deposit formation in suspension fired biomass power plant boilers. The project has been conducted in a tight collaboration between Vattenfall and the CHEC Research Centre at DTU Department of Chemical Engineering. A large part of the project has been performed by conducting
advanced probe measurements at the Amagerværkets Vattenfall owed boilers. It was the objective of the project to provide an improved understanding of ash deposit formation and removal in biomass suspension fired boilers. The project have provided a large amount of knowledge on the following issues: 1) The
influence of local boiler conditions on deposit formation in suspension fired boilers using wood or co-firing straw and wood, 2) quantification of deposit removal in biomass suspension firing boilers with regards both to natural shedding and soot blower induced shedding, 3) established relations of the properties of fuel ash, fly ash and deposits, 4) use of coal ash to remedy biomass ash induced boiler deposit problems.
Original languageEnglish
PublisherTechnical University of Denmark, Department of Chemical and Biochemical Engineering
Number of pages216
Publication statusPublished - 2013

Bibliographical note

Energinet.dk project no. 7217 - CHEC no. R1301

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