THERMODYNAMIC ANALYSIS OF AN ELECTRIC-ARC FURNACE

被引：3
|
作者：
HO, JC
CHANDRATILLEKE, TT
机构：
[1] Department of Mechanical and Production Engineering, National University of Singapore, Singapore, 0511
来源：
ENERGY CONVERSION AND MANAGEMENT | 1991年 / 31卷 / 02期
关键词：
ARC FURNACE; STEEL; SCRAP IRON; ENERGY CONSERVATION; THERMODYNAMIC ANALYSIS; THERMODYNAMIC EFFICIENCIES; SCRAP PREHEATING; RECOVERY; SCRAP CHARGING;
D O I：
10.1016/0196-8904(91)90070-Y
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A thermodynamic analysis was performed on a 44-tonne capacity electric arc furnace. The results obtained showed that this process of billet steel manufacture from scrap iron has a specific energy consumption of 520 kWh/tonne of billet steel. First- and second-law efficiencies, based on electric energy input, were 84.7 and 58.6%, respectively. Modified first- and second-law efficiencies which considered the chemical energy from exothermic reactions as inherent energy input were 54.9 and 36.3%, respectively. Several areas in the production process were examined for the purpose of energy conservation and production cost reduction. The scrap charging and preheating sub-processes offered potential for energy saving for the steel mill.
引用
收藏
页码：179 / 186
页数：8
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