This paper presents the results of experimental studies of heat transfer in electric arc furnaces, which showed that heat fluxes incident from arcs on a heating surface comprise 85%–95% of thermal radiation fluxes. The thermal radiation laws of ionized and nonionized gas volumes are stated, according to which the heat transfer in electric arc furnaces is calculated. The experimental and calculated data on the heat fluxes of arc radiation on a heating surface differ by no more than 5%–8%, indicating that the thermal radiation laws of gas volumes correspond to real heat transfer processes in electric arc furnaces. The heat exchange of arcs in an electric arc furnace bath was calculated. When the arcs are completely buried in the recesses of the bath, their slag and heat radiation fluxes are converted in the recesses into convective heat fluxes and heat conduction flows, heating the entire volume of the metal bath and slag.

本文介绍了电弧炉传热的实验研究结果，结果表明电弧入射到加热表面的热通量占热辐射通量的85%~95%。阐述了电离和非电离气体体积的热辐射定律，根据该定律计算电弧炉中的传热。受热面电弧辐射热通量的实验数据与计算数据相差不超过5%~8%，表明气体体积的热辐射规律符合电弧炉中真实的传热过程。计算了电弧炉熔池中电弧的热交换。当电弧完全埋入熔池的凹槽中时，它们的熔渣和热辐射通量在凹槽中转化为对流热通量和热传导流，加热金属熔池和熔渣的整个体积。