Computational Fluid Dynamics (CFD) of Optimised Industrial Distillation System with Confined-Unconfined Dual-Reducer from Primary Dryer Evaporated Water in Iron Pelletizing Production Lines

Iron Pelletizing is a common process found in varies industries related to Iron concentrate systems, where hot steam from industrial chimney under varies temperature and steam types ranges are widely recorded in the literature. Nonetheless, research on changing of hot steam from chimney to water under low pressure in any industry is still relatively rare. In this study computational fluid dynamics carried and compared by both ANSYS Heat Transfer and COMSOL Multi-Physics analysis software. The computational fluid dynamics (CFD) is one of the best solutions because it might provide high quality results with low cost, observing that to achieve this purpose it is necessary refinements in the models and mainly perform an extended study of the boundary conditions. Also, using two analysing software’s might provide high quality and authentic results and to compare CFD results to show performance, efficiency and validity of industrial optimised distillation system. Thus, ANSYS workbench ۱۵ was used to study the heat flux of distillation system with different models and boundary conditions. To provide valid results only pipeline network system under cooling section was selected. The Heat Flux research CFD analysis carried on follow parameters for both analysis systems. Material chose as copper, Initiate temperature ۲۹۳ k, Thermal conductivity ۸۰۰ w/(m.k), Outlet temperature ۲۷۳ k, Bounari temperature ۲۷۳ k and Heat Flux with general inward heat flux q۰=۵۰۰w/m۲. The results from CFD analysis under both analysis systems show the temperature reduction from about ۲۰۰ C to over ۳۰ C. As can be seen a minor discrepancy might found in the initiate of section two of cooling systems. The temperature reduction of COMSOL Multi-Physics analysis occurred from ۱۳۰ to ۱۲۰ C while the analysis of ANSYS Heat Transfer shows the range of ۱۵۰ to ۱۳۵ C.

کلیدواژه ها:

CFD ، Comsol ، Fluid Dynamics ، Heat Transfer ، Heat Flux