Abstract

This paper presents the results of creating and testing a numerical dynamic model of startup heating during induction melting in a cold crucible. The developed model allows one to determine the electric and thermal characteristics of induction furnace in a cold crucible in the dynamic mode, which include distribution of heat sources in the furnace elements, temperature distribution in the melt and the startup material, the distribution and direction of the velocity in the melt, the electrical parameters of the inductor, and the startup heating time and output time to steady state melting. The created model allows one to evaluate the thermal stability of melting without conducting experiments, which is especially important, for instance, in the development of high-level waste vitrification installations. The results of simulation of the startup heating of glass in a cold crucible with an internal diameter of 200 mm at a current frequency of 1.76 MHz are considered.

中文翻译：

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冷坩埚感应熔炼启动加热的三维动力学模型

摘要

本文介绍了创建和测试冷坩埚感应熔炼过程中启动加热数值动态模型的结果。开发的模型允许人们在动态模式下确定冷坩埚中感应炉的电和热特性，包括炉元件中热源的分布，熔体和启动材料中的温度分布，分布和方向熔体中的速度、感应器的电气参数以及启动加热时间和输出到稳态熔化的时间。创建的模型允许人们在不进行实验的情况下评估熔化的热稳定性，这在例如高级废物玻璃化装置的开发中尤为重要。