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Modified Three-Phase Modeling of Fluidized Bed Dryer of KOLZA SeedsKeywords: Modified three phase modeling , drying , fluidized bed , heat transfer coefficient , geldart D , kolza seeds Abstract: Heat transfer phenomena in batch fluidized bed dryer have been studied and analyzed using modified three-phase model including solid phase, interstitial gas phase and bubble phase based on Rizzi model. Modifications have been done according to the state of flow and particle properties. New experimental research for kolza seeds belong to Geldart group D particles has been done to investigate the distribution of solid and outlet gas temperature. According to this experimental data and some modification in equations new correlations of convection heat transfer coefficient between solid and interstitial gas is being proposed. Numerical results of heat transfer such as solid and gas temperature distributions have been compared with the available experimental data and good agreement between them is observed.
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