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Effects of water based Al2O3, TiO2, and CuO nanofluids as the coolant on solid and annular fuels for a typical VVER-1000 core.

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Title: Effects of water based Al2O3, TiO2, and CuO nanofluids as the coolant on solid and annular fuels for a typical VVER-1000 core.
Authors: Ghazanfari, V.1 vali.ghazanfari@gmail.com, Talebi, M.1, Khorsandi, J.1, Abdolahi, R.1
Source: Progress in Nuclear Energy. Aug2016, Vol. 91, p285-294. 10p.
Subjects: Nanofluids, Annular fuel elements, Nuclear reactor cooling, Solid fuel reactors, Nanoparticles, Temperature distribution, Nuclear power plants
Abstract: In this paper, the effect of nanofluids as the coolant on solid and annular fuels for a typical VVER-1000 core is analysed. The considered nanofluids are various mixture composed of water and particles of Al 2 O 3 , TiO 2 , and CuO. The fuel rod is modeled using a CFD code. To validate the calculated results, the present results of solid fuel with nanofluid and pure water are compared with other studies which have been done with visual FORTRAN language, DRAGON/DONJON code, COBRA-EN code and the mentioned analytical approaches have been validated by comparing with the final safety analysis report (FSAR). The comparison of the calculated results shows that the results are in good agreement with other studies. Thus, the accuracy of the validation is satisfactory. Radial and axial temperature distributions in various components of fuel are illustrated. Moreover, the temperature distributions of the fuel, clad and coolant are described for water based Al 2 O 3 , TiO 2 , and CuOnanofluids in solid fuel and annular fuel. The results are compared with base fluid and it is concluded the nanoparticles of Al 2 O 3 have good properties in comparison with other nanoparticles. By using the nanofluids, the central fuel temperature is reduced and the temperature of the coolant is increased. In addition, by increasing the heated surfaces in annular fuel, the heat flux on these surfaces is reduced, the minimum departure from nucleate boiling ratio (MDNBR) margin is increased, and therefore the critical heat flux can be increased. Finally, it is concluded the use of the annular fuel instead of solid fuel and also the use of the nanofluids as coolant in the core of the reactor, security and efficiency of the nuclear power plant will be increased. [ABSTRACT FROM AUTHOR]
Copyright of Progress in Nuclear Energy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 116522978
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  Data: Effects of water based Al2O3, TiO2, and CuO nanofluids as the coolant on solid and annular fuels for a typical VVER-1000 core.
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  Data: <searchLink fieldCode="AR" term="%22Ghazanfari%2C+V%2E%22">Ghazanfari, V.</searchLink><relatesTo>1</relatesTo><i> vali.ghazanfari@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Talebi%2C+M%2E%22">Talebi, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Khorsandi%2C+J%2E%22">Khorsandi, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Abdolahi%2C+R%2E%22">Abdolahi, R.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Nuclear+Energy%22">Progress in Nuclear Energy</searchLink>. Aug2016, Vol. 91, p285-294. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Nanofluids%22">Nanofluids</searchLink><br /><searchLink fieldCode="DE" term="%22Annular+fuel+elements%22">Annular fuel elements</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+reactor+cooling%22">Nuclear reactor cooling</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+fuel+reactors%22">Solid fuel reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+power+plants%22">Nuclear power plants</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: In this paper, the effect of nanofluids as the coolant on solid and annular fuels for a typical VVER-1000 core is analysed. The considered nanofluids are various mixture composed of water and particles of Al 2 O 3 , TiO 2 , and CuO. The fuel rod is modeled using a CFD code. To validate the calculated results, the present results of solid fuel with nanofluid and pure water are compared with other studies which have been done with visual FORTRAN language, DRAGON/DONJON code, COBRA-EN code and the mentioned analytical approaches have been validated by comparing with the final safety analysis report (FSAR). The comparison of the calculated results shows that the results are in good agreement with other studies. Thus, the accuracy of the validation is satisfactory. Radial and axial temperature distributions in various components of fuel are illustrated. Moreover, the temperature distributions of the fuel, clad and coolant are described for water based Al 2 O 3 , TiO 2 , and CuOnanofluids in solid fuel and annular fuel. The results are compared with base fluid and it is concluded the nanoparticles of Al 2 O 3 have good properties in comparison with other nanoparticles. By using the nanofluids, the central fuel temperature is reduced and the temperature of the coolant is increased. In addition, by increasing the heated surfaces in annular fuel, the heat flux on these surfaces is reduced, the minimum departure from nucleate boiling ratio (MDNBR) margin is increased, and therefore the critical heat flux can be increased. Finally, it is concluded the use of the annular fuel instead of solid fuel and also the use of the nanofluids as coolant in the core of the reactor, security and efficiency of the nuclear power plant will be increased. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Progress in Nuclear Energy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.pnucene.2016.05.007
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        Text: English
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        StartPage: 285
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      – SubjectFull: Nanofluids
        Type: general
      – SubjectFull: Annular fuel elements
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      – SubjectFull: Nuclear reactor cooling
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      – SubjectFull: Solid fuel reactors
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      – SubjectFull: Nanoparticles
        Type: general
      – SubjectFull: Temperature distribution
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      – SubjectFull: Nuclear power plants
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      – TitleFull: Effects of water based Al2O3, TiO2, and CuO nanofluids as the coolant on solid and annular fuels for a typical VVER-1000 core.
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              Text: Aug2016
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