Adjustable Speed Drives (ASDs)

As flue gas flow varies over time, adjustable speed drives (ASDs) offer opportunities to operate dust collection fans in a more energy-efficient manner. Flue gas ASDs have been installed in various countries (e.g. Germany, UK).

Development Status Products
Commercial

Adjustable Speed Drives (ASDs)Costs & Benefits

Parent Process: Electric Arc Furnace
Energy Savings Potential

Total fan energy consumption can be decreased by 67%. Electricity savings are estimated to be 16.5 kWh or 0.06 GJ per ton of steel.
CO2 Emission Reduction Potential

Decreased energy consumption will lower emissions.
Costs

Retrofit capital costs are $2/tonne steel. The payback time is estimated as 2 to 3 years.

Adjustable Speed Drives (ASDs) Publications

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry

Date: 

Oct
2010

Source: 

United States Environmental Protection Agency

Format: 

PDF

Type: 

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.

http://www.energystar.gov/ia/business/industry/Iron_Steel_Guide.pdf?25eb-abc5

Page Number: 

91

Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Iron and Steel Industry

Date: 

Oct
2010

Source: 

United States Environmental Protection Agency

Format: 

PDF

Type: 

Publications
http://www.epa.gov/nsr/ghgdocs/ironsteel.pdf

Page Number: 

11

Adjustable Speed Drives (ASDs) Resources

10 Benefits Adjustable-Speed AC Drives Provide to Industrial Users

Date: 

May
2012
http://www.automation.com/resources-tools/articles-white-papers/motor-drives-con...