Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Dynamic modelling for the hot blast stove
RISE - Research Institutes of Sweden, Swerea, Swerea MEFOS AB. Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
SSAB Special Steels, Sweden.
Siemens VAI Metals Technologies, USA.
Visa övriga samt affilieringar
2017 (Engelska)Ingår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 185, s. 2142-2150Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A large amount of energy is required in the production of steel where the preheating of blast in the hot blast stoves for iron-making is one of the most energy-intensive processes. To improve the energy efficiency of the steelmaking it is necessary to investigate how to improve the hot blast stove operation. In this work a mathematic model for evaluating the performance of the hot blast stove was developed using a finite difference approximation for the heat transfer inside the stove during operation. The developed model was calibrated and validated by using the process data from hot blast stove V26 at SSABs plant in Oxelösund, Sweden. The investigation shows a good agreement between the measured and modelled data. As a case study, the developed model was used to simulate the effect of a new concept of OxyFuel technique to hot blast stoves. The investigation shows that, by using this OxyFuel technique, it is possible to maintain the blast temperature while removing the usage of coke oven gas (COG). The saved COG can be used to replace some fossil fuel, such as oil and LPG. Furthermore, the effect of the cycle time on the single stove was studied. As expected, both the hot blast and flue gas temperatures are increased when increasing the cycle time. This shows that it is a good strategy for the hot blast stove to increase the blast temperature if the stove is currently not operated with the maximum allowed flue-gas temperature.

Ort, förlag, år, upplaga, sidor
2017. Vol. 185, s. 2142-2150
Nyckelord [en]
Blast furnace stove, Flame temperature, Flue gas, Heat transfer, Hot blast, Blast furnaces, Coke ovens, Energy efficiency, Finite difference method, Flue gases, Flues, Fossil fuels, Blast temperature, Developed model, Finite difference approximations, Flame temperatures, Flue gas temperatures, Hot blast stoves, Large amounts, Mathematic model, Stoves
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-29382DOI: 10.1016/j.apenergy.2016.02.128Scopus ID: 2-s2.0-84959554159OAI: oai:DiVA.org:ri-29382DiVA, id: diva2:1093754
Tillgänglig från: 2017-05-08 Skapad: 2017-05-08 Senast uppdaterad: 2018-02-26Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus
Av organisationen
Swerea MEFOS AB
I samma tidskrift
Applied Energy
Naturvetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 59 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7