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首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >AN ADVANCED MULTIBLOCK SOLUTION PROCEDURE AND ITS APPLICATION TO SILICON TUBE GROWTH BY EFG TECHNIQUE
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AN ADVANCED MULTIBLOCK SOLUTION PROCEDURE AND ITS APPLICATION TO SILICON TUBE GROWTH BY EFG TECHNIQUE

机译：先进的多块解法及其在EFG技术应用于硅管生长中的应用

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摘要

The Edge-defined Film-fed Growth (EFG) is a widely used technique for the growth of polycrystalline silicon from its melt in the form of ribbon and hollow cylinders. The current octagonal tube growth technique has been modified successfully to produce 50 cm diameter circular tube for photovoltaic application by ASE Americas, Inc. A comprehensive growth model has been developed that accounts for conduction, convection and radiation heat transfer in the growth system, electromagnetic heating, and solidification. To improve the efficiency and accuracy of the model, two sets of grid system have been employed. A single structured grid system is used to calculate the magnetic potential field generated by radio-frequency induction heater, and a non-matching multi-block grid system to solve the temperature field with fine grids in the vicinity of the die-tip and silicon tube. Two sets of grid system overlap each other. A multi-block solution procedure has been developed satisfying the flux conservation at the block interfaces. The new solution procedure is used to simulate the existing octagonal silicon tube growth. The results obtained by different solvers, e.g., TDMA, CGSTAB, BiCGSTAB, SIP solver, are compared. It is evident that the CPU time is reduced dramatically if a fast solver, such as SIP or multigrid method, is used in the multi-block system.
机译：边缘限定的薄膜进料生长（EFG）是一种广泛使用的技术，用于以带状和空心圆柱体的形式从熔体中生长多晶硅。 ASE Americas，Inc已成功修改了当前的八边形管生长技术，以生产直径为50 cm的光伏应用圆形管。已开发出一种综合的生长模型，该模型考虑了生长系统中的传导，对流和辐射传热，电磁加热和固化。为了提高模型的效率和准确性，采用了两组网格系统。使用单一结构的网格系统来计算射频感应加热器产生的磁场，使用不匹配的多块网格系统来解决在芯片尖端和硅管附近具有细网格的温度场。两组网格系统相互重叠。已经开发出满足块接口处的通量守恒的多块求解程序。新的解决方案过程用于模拟现有的八边形硅管生长。比较了由不同的求解器（例如TDMA，CGSTAB，BiCGSTAB，SIP求解器）获得的结果。显然，如果在多块系统中使用快速求解器（例如SIP或多网格方法），则可大大减少CPU时间。

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