Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics
Abstract This study focuses on the viscosity calculation of molten slags using computational thermodynamics. Different slag systems and their measured viscosities from different references were used and compared with those obtained through FactSage software. To calculate the viscosity of each slag t...
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| Format: | Article |
| Language: | English |
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Fundação Gorceix
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| Series: | REM: International Engineering Journal |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000200243&lng=en&tlng=en |
| _version_ | 1818137652545716224 |
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| author | Vinicius Cardoso da Rocha Miguel Lahr da Silva Wagner Viana Bielefeldt Antônio Cezar Faria Vilela |
| author_facet | Vinicius Cardoso da Rocha Miguel Lahr da Silva Wagner Viana Bielefeldt Antônio Cezar Faria Vilela |
| author_sort | Vinicius Cardoso da Rocha |
| collection | DOAJ |
| description | Abstract This study focuses on the viscosity calculation of molten slags using computational thermodynamics. Different slag systems and their measured viscosities from different references were used and compared with those obtained through FactSage software. To calculate the viscosity of each slag the Viscosity module available in FactSage 6.4 was used. In order to perform the evaluation of computational thermodynamics in viscosity calculation, six different slag systems were presented, all of which were formed of calcium-silicate melts. In total, 162 slags, in temperatures ranges from 1423 K (1150 ºC) to 2089 K (1816 °C) were presented for all slag systems. The software showed a tendency to produce viscosity values lower than those found in the literature measured by an experimental method. The relative deviation between the measured and calculated viscosity values is in the range of 13.31 to 37.53% for evaluated systems. Considering all references and systems, the average deviation between measured and calculated viscosities is 23.61%, which, according to literature, is an acceptable value. The CaO-SiO2-Al2O3 and CaO-SiO2-FeO systems showed the best agreement between the experimental method and the method calculated through FactSage 6.4 with a very good fitting between viscosity values. |
| first_indexed | 2024-12-11T09:59:42Z |
| format | Article |
| id | doaj.art-c07d8cb7d2da48ef8de0fcc9f6945a7a |
| institution | Directory Open Access Journal |
| issn | 2448-167X |
| language | English |
| last_indexed | 2024-12-11T09:59:42Z |
| publisher | Fundação Gorceix |
| record_format | Article |
| series | REM: International Engineering Journal |
| spelling | doaj.art-c07d8cb7d2da48ef8de0fcc9f6945a7a2022-12-22T01:12:10ZengFundação GorceixREM: International Engineering Journal2448-167X71224325210.1590/0370-44672017710029S2448-167X2018000200243Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamicsVinicius Cardoso da RochaMiguel Lahr da SilvaWagner Viana BielefeldtAntônio Cezar Faria VilelaAbstract This study focuses on the viscosity calculation of molten slags using computational thermodynamics. Different slag systems and their measured viscosities from different references were used and compared with those obtained through FactSage software. To calculate the viscosity of each slag the Viscosity module available in FactSage 6.4 was used. In order to perform the evaluation of computational thermodynamics in viscosity calculation, six different slag systems were presented, all of which were formed of calcium-silicate melts. In total, 162 slags, in temperatures ranges from 1423 K (1150 ºC) to 2089 K (1816 °C) were presented for all slag systems. The software showed a tendency to produce viscosity values lower than those found in the literature measured by an experimental method. The relative deviation between the measured and calculated viscosity values is in the range of 13.31 to 37.53% for evaluated systems. Considering all references and systems, the average deviation between measured and calculated viscosities is 23.61%, which, according to literature, is an acceptable value. The CaO-SiO2-Al2O3 and CaO-SiO2-FeO systems showed the best agreement between the experimental method and the method calculated through FactSage 6.4 with a very good fitting between viscosity values.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000200243&lng=en&tlng=enViscosityslagscomputational thermodynamicsFactSage 6.4 |
| spellingShingle | Vinicius Cardoso da Rocha Miguel Lahr da Silva Wagner Viana Bielefeldt Antônio Cezar Faria Vilela Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics REM: International Engineering Journal Viscosity slags computational thermodynamics FactSage 6.4 |
| title | Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics |
| title_full | Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics |
| title_fullStr | Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics |
| title_full_unstemmed | Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics |
| title_short | Assessment of viscosity calculation for calcium-silicate based slags using computational thermodynamics |
| title_sort | assessment of viscosity calculation for calcium silicate based slags using computational thermodynamics |
| topic | Viscosity slags computational thermodynamics FactSage 6.4 |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000200243&lng=en&tlng=en |
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