Review and Simulation Process of Deposition in Fluidize Bed(Focus on Heat Transfer)

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Kanai Aghkand, Hamid | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44161 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Roosta Azad, Reza; Yaghmaei, Soheyla
Abstract:
This project related to gas purification according to difference in the deposition point in the fludized bed.The main reason for choosing fluidized bed is increasing overall heat transfer coefficient compare in to other heat exchangers. Separation process, by cooling the wall causes the self- deposition gas phase shifts to solid phase. Solid formed on the wall, act as an insulating layer and greatly reduces the heat transfer. To solve this problem, the fluidized bed system is offered because fluid particles in addition to remove the insulating layer, improving convection heat transfer coefficient . Laboratory tests show the feasibility of preventing the formation of insulating layer by particles and also show that the fluid particles in vitro model doubles the convection heat transfer coefficient and the overall heat transfer coefficient increases four times. Of course the overall heat transfer coefficient can be increased up to eightfold in more realistic model
Keywords:
Consolidation ; Fluidization Flow ; Gas Purification ; Overall Heat Transfer Coefficient ; Wear

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