The Simulation of Flow and Heat Transfer in a New Polycrystalline Silicon Reduction Furnace

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Abstract

In order to meet the demand for the development of the solar industry, this paper proposed a new type of polycrystalline silicon reduction furnace. The new reduction maked several improvements on the basis of the traditional Siemens reduction furnace: 1)Add heat pipes with highly polished outside faces; 2)Add a sleeve inside the furnace at the central outlet; 3)Add three interpolation inlets. The velocity and temperature fields were simulated by using computational fluid dynamic method. The simulation result of the flow field showed that the sleeve structure played an important role in collecting reductive gas making it easier to come through the central outlet; the result of the temperature simulation showed that the interpolation inlet promoted the update of the reductive gas at the top of the furnace; the highly polished surfaces of the thermotube reflected heat radiation by silicon rod, reduced the environment temperature of the reduction furnace,prevented the production of silicon powder successfully and was more conducive to the growth of silicon rods.

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	Articles by authors
	Wang Xiaojing
	Zhang Can
	Huang Yiping
	Chen Zhou
	Lu Xiaoyong
	Xu Yiming

Keywords： polycrystalline silicon reduction furnace； temperature field； velocity field

Received 2014-10-12;

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Cite this article:

Wang Xiaojing, Zhang Can, Huang Yiping, Chen Zhou, Lu Xiaoyong, Xu Yiming.The Simulation of Flow and Heat Transfer in a New Polycrystalline Silicon Reduction Furnace[J] Chemcial Industry and Engineering, 2016,V33(4): 56-60

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