Tuesday 27 May 2014

Flow Analysis Through APH to ESP Flue Path in 270MW Fuel Fired Boiler Using Fluent and CFX

This is about the analysis on Flue path through APH to ESP Duct. The following field values are taken as boundary conditions for this analysis. For 270 MW coal fired boiler there are 6 nos of APH Hoppers to collect the Fly ash and those are directly connected with pneumatic conveying system. Ducts are connected with ESP in two passes. In this analysis only one pass is taken into observation keeping the other pass blocked.


  • APH Outlet Pressure : -190 mmwc.
  • ESP Inlet Pressure : -214 mmwc.
  • Mass Flow Rate : 1161.9 TPH.
  • APH Outlet Temperature : 133 Deg Celcius.
  • Density of Flue : .834 kg/m3.

Results While Keeping Hopper Outlets Blocked


Pressure Analysis

Velocity Analysis


Velocity Pathlines in 2D View


Velocity Pathlines in 3D View



  • Now we are having Hopper Outlet Pressure : -200  mmwc.

Results While Keeping Hopper Outlets Opened


Pressure Analysis


Velocity Analysis


Velocity Pathlines in 2D View


Velocity Pathlines in 3D View



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