Authors :
Kewal Singh; Navdeep Singh Grewal; Sukhdeep Singh
Volume/Issue :
Volume 9 - 2024, Issue 3 - March
Google Scholar :
https://tinyurl.com/yc3nu8pj
Scribd :
https://tinyurl.com/3bxcdnhx
DOI :
https://doi.org/10.38124/ijisrt/IJISRT24MAR1834
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
Erosion-induced failure of pulverized coal
burner nozzles (PCBN) presents a significant challenge
in pulverized coal-based thermal power plants.
Investigations have identified multiple causative factors
leading to the accelerated degradation and consequent
reduced lifespan of PCBN. These factors include the
erosive impact of solid fuel particles carried at high
velocities and angles, as well as the high-temperature
conditions within the combustion zone. To mitigate
erosion, strategies often revolve around enhancing
material resistance or optimizing aerodynamic profiles
to minimize drag forces. This study employs
Computational Fluid Dynamics (CFD) via the CFX code
to model and analyze the erosion dynamics within
PCBN. By adjusting the geometry of the inner plates
within the PCBN, simulations indicated a notable
improvement in erosion resistance. The optimized
design achieved this by expanding the flow area
between the innermost bifurcated plates without
altering their angle, leading to a more uniform flow
distribution and favorable velocity and pressure
gradients. These modifications have the potential not
only to prolong nozzle life but also to contribute to more
efficient combustion in tangentially fired furnaces.
Keywords :
Erosion Behavior, Pulverized Coal Burner Nozzles (PCBN), Aerodynamics Effects, Computational Fluid Dynamics (CFD), Impact Angle.
Erosion-induced failure of pulverized coal
burner nozzles (PCBN) presents a significant challenge
in pulverized coal-based thermal power plants.
Investigations have identified multiple causative factors
leading to the accelerated degradation and consequent
reduced lifespan of PCBN. These factors include the
erosive impact of solid fuel particles carried at high
velocities and angles, as well as the high-temperature
conditions within the combustion zone. To mitigate
erosion, strategies often revolve around enhancing
material resistance or optimizing aerodynamic profiles
to minimize drag forces. This study employs
Computational Fluid Dynamics (CFD) via the CFX code
to model and analyze the erosion dynamics within
PCBN. By adjusting the geometry of the inner plates
within the PCBN, simulations indicated a notable
improvement in erosion resistance. The optimized
design achieved this by expanding the flow area
between the innermost bifurcated plates without
altering their angle, leading to a more uniform flow
distribution and favorable velocity and pressure
gradients. These modifications have the potential not
only to prolong nozzle life but also to contribute to more
efficient combustion in tangentially fired furnaces.
Keywords :
Erosion Behavior, Pulverized Coal Burner Nozzles (PCBN), Aerodynamics Effects, Computational Fluid Dynamics (CFD), Impact Angle.
