Hot ChargingCosts & Benefits
|Parent Process: Rolling Mills|
|Energy Savings Potential||
Energy savings of 0.06 GJ/t-rolled steel are estimated (US EPA, 2010. p.27).
In a Japanese plant, hot charging has reduced specific fuel consumption in the heating furnace by 0.21 GJ/t-product (NEDO, 2008. p. 86)
|CO2 Emission Reduction Potential||
Emissions reduction potential is estimated to be 30.2 Kg CO2/t-rolled steel.
Retrofit capital costs and savings are estimated as $23.5/t-rolled steel and $1.15/t-hot charged steel with payback times of 5.9 years (US EPA, 2010. p.27).
In a Japanese plant total retrofiting costs were ¥250 million. With a heavy oil price of ¥433/GJ, the payback time was 2 years.
Hot Charging Publications
Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Iron and Steel Industry
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.