MATHEMATICAL MODELING AND DYNAMIC SIMULATION OF TEMPERATURE DISTRIBUTION IN A CHAMBER FURNACE
MATHEMATICAL MODELING AND DYNAMIC SIMULATION OF TEMPERATURE DISTRIBUTION IN A CHAMBER FURNACE
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Date
2011-12
Authors
AJIBOLA, OLADOSU WASIU
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Abstract
ABSTRACT
Chamber furnaces are widely used in heat treatment. The correct prediction of the temperature
variation and distribution within the chamber is of high significance to ensure good quality of the
products being fired and reduce energy consumption. A software by trade name COMSOL was
used to model and simulate the temperature distribution in a chamber furnace at different
positions using finite element method (FEM) together with adaptive meshing and error control.
An experimental chamber furnace was employed with five thermocouples to measure
temperature values at different positions. In the chamber furnace, heat was transferred by both
conduction and radiation. The results of the modeling were compared with the experimental
values and it was found that there were disparities. The result of the simulated temperature at
position (-0.125, -0.15,0) after 10mins was 525K whereas the measured temperature at the same
position was 353K., Also the results of the simulated temperature at position (0,-0.15,0) after
10mins was 360K whereas the measured temperature at the same position was 358K.The average
temperature distribution of the simulated result was 442K whereas the measured temperature was
355.2K. The disparity was due to contamination and degradation of furnace refractory lining
which result from the reduction and re-oxidation of silica found in the refractory after lengthen in
duration of heating of the chamber furnace.
Description
DEPT OF CHEMICAL ENGINEERING
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
Keywords
MATHEMATICAL,, MODELING,, DYNAMIC,, SIMULATION,, TEMPERATURE,, DISTRIBUTION,, CHAMBER,, FURNACE