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CFD Case Study

Improved Flow Distribution in Wind Box for Air Flor Uniformity at Burner Exit, Mexico

The Client
Power Plant Equipment Manufacturer, Mexico

The Objective

To improve air flow uniformity at each burner exit by design modification of the wind box.

The Solution

The wind box consisting of burner arrangements were first modeled through CAD tools and uniformity across the burner exits was measured. In order to improve the uniformity, use of baffles at several different locations around the burners were suggested. The simulation for the new configuration reduced the flow rate difference below 2 percent, proving the significance of the optimized wind box design.

ANSYS Fluent 14


Engineering Solution

Fluid dynamicists at Hi-Tech provided a cost-effective solution to improve the uniformity in air flow distribution across the burners, through design modification and subsequent CFD simulations. In order to achieve uniformity in flow, the wind box was modified with additional baffles surrounding the burners, to direct the flow uniformly at each burner.

It was observed that through different baffle arrangements, the velocity distribution across all the burners improved significantly. The difference in flow rates between the top and bottom burners were reduced by half, indicating better mass flow rate availability for complete combustion.


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