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| Application: CFD Used to Optimize Paper Mill Burner |
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Posted Thu May 24, 2001 @10:28AM
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Pulp & Paper Online is running an
article detailing how the Coen Company was called in to an Alabama pulp and paper mill to increase burner coke firing and correct flame impingement problems on the kiln refractory. In addition, to reduce operating costs, the mill wanted to use a combination of fuels including natural gas and waste oil with particulates.
Using CFD, Coen modeled the existing burner's temperature contours, coke firing rate, flame shape and radiative heat flux to the kiln refractory.
The CFD modeling persuaded the customer that a properly designed burner system could eliminate flame impingement, increase coke firing, and meet their production requirements.
Within 16 weeks, Coen delivered a multi-fuel dual air zone kiln burner, which successfully started up in a week. The new burner conveyed the coke in an outer air zone while an inner air zone spinner created a strong recirculation zone to stabilize the difficult to burn coke fuel. For precise flame shape control, CFD modeling created unique drillings for the gas and oil firing nozzles.
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