An experimental study of in-furnace processes and dynamic behaviour of a 235 MWe CFB boiler
Journal article, 2004

In a project funded by the 5th Framework Programme of the European Union, a 235 MWe Circulating Fluidized Bed (CFB) boiler is investigated with respect to in-furnace processes and dynamic response to load changes. The purpose of the project is to assess the insufficiently known features of large-scale CFB boilers. The furnace of the boiler has a cross-section of 21 x 10 meters and a height of 44 meters. The boiler is located in Turow, Poland, and is operated on a local brown coal. The project is unique in that several measurement ports were opened in the walls of the large CFB furnace for measurements in various locations inside the furnace. Also, a number of techniques were employed with new probes developed for this type of measurements to form a basis for studies of hydrodynamic processes as well as local variations in gas components (such as O2, CO, THC) and solid bed materials. The paper describes the measurement techniques and provides examples of results obtained from the in-situ measurements and from the dynamic response study.

Circulating fluidized bed boiler


Fluidized bed combustion


Filip Johnsson

Chalmers, Department of Energy Technology

A Johansson

Chalmers, Department of Energy Technology

Johan Sternéus

Chalmers, Department of Energy Technology

Bo G Leckner

Chalmers, Department of Energy Technology

U. Hartge

Fehr M.

J. Werther


VGB PowerTech

1435-3199 (ISSN)

Vol. 84 3 82-87

Subject Categories

Energy Engineering

Areas of Advance



Chalmers Power Central

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