Open AccessComputational Study of Heat Transfer Behavior in Fluid-Solid Fluidized Beds.
Author(s) -
Sherko Flamarz
Publication year - 2020
Publication title -
mağallaẗ al-sulaymāniyyaẗ li-l-ʿulūm al-handasiyyaẗ/sulaimani journal for engineering sciences
Language(s) - English
Resource type - Journals
eISSN - 2415-6655
pISSN - 2410-1699
DOI - 10.17656/sjes.10132
Subject(s) - computational fluid dynamics , heat transfer , fluidized bed , mechanics , materials science , cfd dem , fluid dynamics , heat transfer coefficient , reynolds number , thermodynamics , discrete element method , thermal , porosity , turbulence , physics , composite material
Heat transfer in fluid-solid fluidized beds is investigated using a combined of computational fluid dynamics (CFD) and discrete element method (DEM) approach, incorporated with a thermal model. The approach has taken into account almost all the mechanisms in heat transfer in fluidized beds. A comparison and validation of hydrodynamic and thermal data of fluidized bed obtained using CFD-DEM thermal approach with experimental and numerical results data in the literature is carried out. The simulations results reveal a good thermal steady state during the simulation time for calculating the thermal behaviors of fluidized beds like; the mean particle temperature, bed porosity, heat transfer coefficient and mean particle Reynolds number. The simulations results are showed a good agreement and consistency with the experimental and numerical data in the literatures. Thus, the integration of combined CFD-DEM with the thermal model is a step toward for the prediction, development the heat transfer efficiency in fluid-solid system, and the decrease of energy consumption of the industrial applications.