Characteristic features of heat transfer in circulating fluidized bed boilers
Journal article, 1992

The characteristic features of heat transfer in circulating fluidized bed boilers are described. First, the conditions for heat transfer are listed. Then, examples of measurements from the research boiler at Chalmers University of Technology are presented, including thermal and fluid-dynamic boundary layers as well as heat transfer coefficients measured with a heat flow meter and with thermocouples mounted on the tube walls of the boiler. Differences in heat transfer efficiency of the fins and of the tubes of a membrane tube wall are shown. Finally, heat transfer mechanisms are briefly discussed, and the influence of the macroscopic flow pattern caused by exit, secondary air, etc. is indicated.

Circulating fluidized beds

Boiler

Heal transfer

Author

Bo G Leckner

Department of Energy Conversion

Bengt-Åke Andersson

Department of Energy Conversion

Powder Technology

0032-5910 (ISSN)

Vol. 70 3 303-314

Subject Categories

Energy Engineering

Areas of Advance

Energy

Infrastructure

Chalmers Power Central

More information

Created

10/8/2017