Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Pentti Kupari"'
Autor:
Ville-Valtteri Visuri, J Kaisto, Topi Ikäheimonen, Riku Mattila, Eetu-Pekka Heikkinen, Pentti Kupari, A Harju, Timo Fabritius
Publikováno v:
SSRN Electronic Journal.
The refining of ferrochrome with a ferrochrome converter permits the use of molten ferrochrome in an integrated stainless steel mill. During this process, the carbon and silicon contents of the ferrochrome are reduced using oxygen-blowing. To keep th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0974430e93bb93644a1b66e8d1268c4
https://doi.org/10.2139/ssrn.3926727
https://doi.org/10.2139/ssrn.3926727
Autor:
Timo Fabritius, Mika Järvinen, Aki Kärnä, Petri Sulasalmi, Pentti Kupari, Ville-Valtteri Visuri, Eetu-Pekka Heikkinen
Publikováno v:
Metallurgical and Materials Transactions B. 48:1850-1867
In an earlier work, a fundamental mathematical model was proposed for side-blowing operation in the argon–oxygen decarburization (AOD) process. The purpose of this work is to present a new model, which focuses on the reactions during top-blowing in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a602b64934163f0ef2d7c2f8d06a077
https://doi.org/10.1007/s11663-017-0960-6
https://doi.org/10.1007/s11663-017-0960-6
Autor:
Aki Kärnä, Petri Sulasalmi, Eetu-Pekka Heikkinen, Ville-Valtteri Visuri, Timo Fabritius, Mika Järvinen, Pentti Kupari
Publikováno v:
Metallurgical and Materials Transactions B. 48:1868-1884
In earlier work, a fundamental mathematical model was proposed for side-blowing operation in the argon oxygen decarburization (AOD) process. In the preceding part “Derivation of the Model,” a new mathematical model was proposed for reactions duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56c98e201643c2de2bc00e50d4abc334
https://doi.org/10.1007/s11663-017-0961-5
https://doi.org/10.1007/s11663-017-0961-5
Publikováno v:
steel research international. 82:650-657
A fundamental mathematical model for AOD process has been developed and proposed in “Fundamental Mathematical Model for AOD Process. Part I: Derivation of the Model” 1. Validation of the model with process data, measured from full scale AOD proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cd899e2df24a3a9e0c42866c9dee53c
https://doi.org/10.1002/srin.201000266
https://doi.org/10.1002/srin.201000266
Publikováno v:
steel research international. 82:638-649
This paper presents a new simulation model for the AOD process that takes the local variations into account but is still computationally efficient. The new idea here was to model AOD reactor as a combination of a plug flow reactor for the plume zone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8faff9f8962698acc29571cfecf8c93b
https://doi.org/10.1002/srin.201000265
https://doi.org/10.1002/srin.201000265
Publikováno v:
ISIJ International. 49:1468-1473
A computational model based on mass transfer and thermodynamic data as well as kinetic information from the industrial AOD process has been created in order to simulate the nitrogen content of the stainless steel melt as a function of blowing time. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b762b14b5d049f53df1c1c5aa3b153e8
https://doi.org/10.2355/isijinternational.49.1468
https://doi.org/10.2355/isijinternational.49.1468
Publikováno v:
Steel Research. 72:237-244
Traditionally, in stainless steelmaking converters, oxygen has been blown by a one-hole lance (1 HL) and sidewall tuyeres. In order to reduce the tap-to-tap time, the multi-hole lance has been used for oxygen blowing. The aim of this work was to deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eb1595f87f907e2766666b2fc168ede
https://doi.org/10.1002/srin.200100111
https://doi.org/10.1002/srin.200100111
Publikováno v:
Scandinavian Journal of Metallurgy. 30:57-64
The flow patterns of the chromium converter (CRC) during top and side-wall blowing have been studied using a physical model (1:7). The dynamic similarity between model and real system has been determined by the Froude number and specific mixing energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f878d582c4c023dd0c9e749e6301edb
https://doi.org/10.1034/j.1600-0692.2001.300201.x
https://doi.org/10.1034/j.1600-0692.2001.300201.x