In particular, the process of the solids tumbling within the drum is difficult to reconcile with 1-dimensional treatment. This identified several key parameters which could not be well characterised by hand calculations alone. Given the extreme temperatures, the radiation was predicted to be the largest but not dominant.Ī MathCAD model was created to describe the complex network of heat transfers along with some basic chemistry using a one-dimensional treatment. There are many heat transfer mechanisms both within the furnace and the reactor, including several heat paths for convection, conduction and radiation. The vessel sits within a furnace to heat the solid and gaseous products.Ī major area of concern for the process is the limitations of heat transfer into the reactor. A horizontal drum admits a solid discrete product which is pushed along the drum axis via an Archimedean screw with mixing paddles. DC White were commissioned to provide analytical support for an extreme temperature Archimedean screw reactor vessel.
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