Optimization And Simulation Experimental Research Of The Inlet Chamber Structure For3-D Mesh Type Fluidized Bed

With the continuous development and research of the renewable energy, thetechnology of solar energy has been made adequate progress, and been promoted bycountries all over the word. The key components of solar energy technology is crystallinesilicon whose production consumes lots of energy. Therefore, the important targetrepresented in this work is how to decreases the power consumption in the fluidized bedthat is a reactor in production process of crystalline silicon.Combining numerical method and experiments, the three dimension mesh-structureinlet chamber of fluidized bed is studied in this paper. It is an aim to guarantee even gasdistribution and great fluidized function as the pressure loss of fluidized bed is decreased.As a whole, the shortage that bad function of traverse adjustment would be avoided, ifboth low pressure drop and nice fluidized function owned by the three dimension meshstructure panel are used in fluidized beds.Aiming to optimize the structure of inlet chamber, there are two methods puttedforward, and both of them are simulated through Fluent. The relevant geometry conditionand structures are compared based on results of numerical simulations. Then the optimalscheme is assured, and relevant experiments are also conducted to validate this method.There are some conclusions made according to experimental results as follows. Comparedwith the original inlet chamber, the flow residence is decreased greatly, and the pressureloss is dropped by96%in the scope of fluidization without particles stacked in bed. Theflow field is also optimized in experiments, which makes fluidization area increased from16%to43%. However, there is some area called ’dead zone’ existed in experiments,which is not completely consistent with simulation. So some works are needed to be doneto optimize the geometry condition and improve the uniformity of flow field in inletchamber.