Direct Current (DC) Arc FurnaceCosts & Benefits
|Parent Process: Electric Arc Furnace|
|Energy Savings Potential||
Net energy savings over older AC furnaces are estimated to be 0.32GJ/t-steel. Compared to new AC furnaces, the savings are limited to 0.036-0.072 GJ/t-steel (US EPA, 2010. p.35).
|CO2 Emission Reduction Potential||
Emissions reduction potential of the technology is 52.9 Kg CO2/t-steel (US EPA, 2010. p.11).
The additional investment costs over that of an AC furnace are approximately $6.1/t capacity. The payback time is estimated as 0.7 years (US EPA, 2010. p.35).
Direct Current (DC) Arc FurnaceSchematic
Direct Current (DC) Arc Furnace Publications
The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.
This revised 2008 version of the publication from New Energy and Industrial Technology Development of Japan includes information on innovative Japanese technologies for energy efficiency and for the reduction of CO2 emissions.