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Model Development of a Blast Furnace Stove
Department of Process Integration, Swerea MEFOS AB.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
SSAB EMEA Oxelösund.
Siemens VAI Metals Technologies.
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2015 (English)Conference paper, Meeting abstract (Refereed)
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 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 to represent the heat transfer inside the stove during operation. The developed model was calibrated by using the process data from the stove V26 at SSAB Oxelösund, Sweden. 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 the OxyFuel technique, it is possible to maintain the blast temperature while removing the usage of coke oven gas. Additionally, the hot blast temperature increases while the flue gas temperature decreases, which allows for an increase of the blast temperature, leading to improved energy efficiency for the hot stove system.

Place, publisher, year, edition, pages
2015. Vol. 75, 1758–1765- p.
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-37123DOI: 10.1016/j.egypro.2015.07.454Local ID: b0725fb8-b4dc-43c6-9700-2e3d6d536596OAI: oai:DiVA.org:ltu-37123DiVA: diva2:1010621
Conference
International Conference on Applied Energy : 28/03/2015 - 31/03/2015
Note
Validerad; 2015; Nivå 1; 20150901 (andbra)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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