Numerical Simulation of Physical and Chemical Processes in Fluidized Bed

D A Baturin,A V Gil

doi:10.1088/1757-899x/93/1/012003

Abstract

The paper presents a numerical simulation of the furnace with a circulating fluidized bed. Numerical study carried out for the bottom of the combustion chamber with the varying heights of volume filling. The results contours of particulate matter concentration and of velocities, as well as a graphical representation of changes in the concentration of particles on the bed height are shown. Simulation performed in Eulerian - Eulerian representation on a 2D model.

Highlights

Much attention is paid to technology for to achieving low harmful emissions during effective combustion of low-quality solid fuels
High-quality design of large stakes of a circulating fluidized bed depends on the analysis of dynamic processes in the furnace
The maximum speed of the solid phase is observed in the vicinity of the first row of air nozzles and reaches 2.92m/s

Summary

Introduction

Much attention is paid to technology for to achieving low harmful emissions during effective combustion of low-quality solid fuels. Boilers with circulating fluidized bed (CFB), widespread in the energy sector where fuel is supplied from both the burners and of returning ash chute, became in the bottom of the furnace there is a fluidized bed where a constant particle removal is organized [1]. High-quality design of large stakes of a circulating fluidized bed depends on the analysis of dynamic processes in the furnace.

Results

Conclusion