Abstract
ABSTRACT
A computational modelling study is performed for a full-scale rotary kiln incinerator, using the commercial fluid mechanics code FLUENT. The coordinate system is three-dimensional, and turbulence and buoyancy are also modelled. A global one-step reaction is used for methane combustion. Heat transfer modelling is limited to conduction and convection. The leak air locations and flowrates, as well as the heat flux at the kiln walls are varied to study their effects on the kiln operation. A comparison is made with full-scale kiln data [1-3], and good qualitative agreement is reached. The issue of grid dependence is addressed but not resolved.
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