Experimental evaluation of the lateral mixing of fuel in a fluidized bed with cross-flow of solids - influence of tube banks
Paper in proceedings, 2014

This work investigates the lateral fuel mixing in fluidized beds with a crossflow of solids by means of experiments in a fluid-dynamically downscaled unit of the Chalmers indirect biomass gasifier. Fuel lateral mixing is expressed as the combined effect of fuel dispersion and drag from the solids cross flow, and the work evaluates quantitatively these two effects at two different fluidization velocities. In addition, the work investigates the influence of a bank of horizontal tubes. It is found that there is a significant increase in both lateral fuel dispersion and drag of the fuel particles with fluidization velocity. Furthermore, the two mechanisms for lateral fuel mixing are drastically lowered by the insertion of the tube bank.

Author

Jens Olsson

Joakim Larsson

Erik Sette

Chalmers, Energy and Environment, Energy Technology

David Pallarès

Chalmers, Energy and Environment, Energy Technology

Srdjan Sasic

Chalmers, Applied Mechanics, Fluid Dynamics

Filip Johnsson

Chalmers, Energy and Environment, Energy Technology

11th International Conference on Fluidized Bed Technology, CFB 2014; Beijing; China; 14 May 2014 through 17 May 2014

119-124

Subject Categories

Energy Engineering

Areas of Advance

Energy

More information

Created

10/8/2017