Detail publikace

Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature

MAUDER, T. BŘEZINA, M.

Originální název

Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Production of overall CO2 emissions has exhibited a significant reduction in almost every industry in the last decades. The steelmaking industry is still one of the most significant producers of CO2 emissions worldwide. The processes and facilities used at steel plants, such as the blast furnace and the electric arc furnace, generate a large amount of waste heat, which can be recovered and meaningfully used. Another way to reduce CO2 emissions is to reduce the number of low-quality steel products which, due to poor final quality, need to be scrapped. Steel product quality is strongly dependent on the continuous casting process where the molten steel is converted into solid semifinished products such as slabs, blooms, or billets. It was observed that the crack formation can be affected by the water cooling temperature used for spray cooling which varies during the year. Therefore, a proper determination of the cooling water temperature can prevent the occurrence of steel defects. The main idea is based on the utilization of the waste heat inside the steel plant for preheating the cooling water used for spray cooling in the Continuous Casting (CC) process in terms of water temperature stabilization. This approach can improve the quality of steel and contribute to the reduction of greenhouse gas emissions. The results show that, in the case of billet casting, a reduction in the cooling water consumption can be also reached. The presented tools for achieving these goals are based on laboratory experiments and on advanced numerical simulations of the casting process.

Klíčová slova

steelmaking process; quality improvement; waste heat utilization; numerical simulations; optimal control

Autoři

MAUDER, T.; BŘEZINA, M.

Vydáno

25. 5. 2021

Nakladatel

MDPI

ISSN

2071-1050

Periodikum

Sustainability

Ročník

13

Číslo

11

Stát

Švýcarská konfederace

Strany od

1

Strany do

12

Strany počet

12

URL

https://www.mdpi.com/2071-1050/13/11/5957

Plný text v Digitální knihovně

http://hdl.handle.net/11012/200420

BibTex

@article{BUT171630,
  author="Tomáš {Mauder} and Michal {Březina}",
  title="Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature",
  journal="Sustainability",
  year="2021",
  volume="13",
  number="11",
  pages="1--12",
  doi="10.3390/su13115957",
  issn="2071-1050",
  url="https://www.mdpi.com/2071-1050/13/11/5957"
}