Numerical Analysis of Coolant Flow and Heat Transfer in ITER Diagnostic First Wall

Khodak, A.; Loesser, G.; Zhai, Y.; Udintsev, V.; Klabacha, J.; Wang, W.; Johnson, D.; Feder, R.

doi:10.13182/fst14-955

Title: Numerical Analysis of Coolant Flow and Heat Transfer in ITER Diagnostic First Wall

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Abstract

We performed numerical simulations of the ITER Diagnostic First Wall (DFW) using ANSYS workbench. During operation DFW will include solid main body as well as liquid coolant. Thus thermal and hydraulic analysis of the DFW was performed using conjugated heat transfer approach, in which heat transfer was resolved in both solid and liquid parts, and simultaneously fluid dynamics analysis was performed only in the liquid part. This approach includes interface between solid and liquid part of the systemAnalysis was performed using ANSYS CFX software. CFX software allows solution of heat transfer equations in solid and liquid part, and solution of the flow equations in the liquid part. Coolant flow in the DFW was assumed turbulent and was resolved using Reynolds averaged Navier-Stokes equations with Shear Stress Transport turbulence model. Meshing was performed using CFX method available within ANSYS. The data cloud for thermal loading consisting of volumetric heating and surface heating was imported into CFX Volumetric heating source was generated using Attila software. Surface heating was obtained using radiation heat transfer analysis. Our results allowed us to identify areas of excessive heating. Proposals for cooling channel relocation were made. Additional suggestions were made to improve hydraulic performance of the coolingmore » system.« less

Authors:

^[1]; Loesser, G. ^[1]; Zhai, Y. ^[1]; Udintsev, V. ^[2];

^[1]; Wang, W. ^[1];

^[1]; Feder, R. ^[1]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
ITER Organization, St. Paul Lez Durance (France)

Publication Date:: Fri Jul 24 00:00:00 EDT 2015

Research Org.:: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1258799

Resource Type:: Accepted Manuscript

Journal Name:: Fusion Science and Technology

Additional Journal Information:: Journal Volume: 68; Journal Issue: 3; Journal ID: ISSN 1536-1055

Publisher:: American Nuclear Society

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 97 MATHEMATICS AND COMPUTING

Citation Formats


                    Khodak, A., Loesser, G., Zhai, Y., Udintsev, V., Klabacha, J., Wang, W., Johnson, D., and Feder, R. Numerical Analysis of Coolant Flow and Heat Transfer in ITER Diagnostic First Wall.  United States: N. p., 2015. 
Web.  doi:10.13182/fst14-955.

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                    Khodak, A., Loesser, G., Zhai, Y., Udintsev, V., Klabacha, J., Wang, W., Johnson, D., & Feder, R. Numerical Analysis of Coolant Flow and Heat Transfer in ITER Diagnostic First Wall.  United States.  https://doi.org/10.13182/fst14-955

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                    Khodak, A., Loesser, G., Zhai, Y., Udintsev, V., Klabacha, J., Wang, W., Johnson, D., and Feder, R. Fri .  
"Numerical Analysis of Coolant Flow and Heat Transfer in ITER Diagnostic First Wall".  United States.  https://doi.org/10.13182/fst14-955.  https://www.osti.gov/servlets/purl/1258799.

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@article{osti_1258799,

  title        = {Numerical Analysis of Coolant Flow and Heat Transfer in ITER Diagnostic First Wall},

  author       = {Khodak, A. and Loesser, G. and Zhai, Y. and Udintsev, V. and Klabacha, J. and Wang, W. and Johnson, D. and Feder, R.},

  abstractNote = {We performed numerical simulations of the ITER Diagnostic First Wall (DFW) using ANSYS workbench. During operation DFW will include solid main body as well as liquid coolant. Thus thermal and hydraulic analysis of the DFW was performed using conjugated heat transfer approach, in which heat transfer was resolved in both solid and liquid parts, and simultaneously fluid dynamics analysis was performed only in the liquid part. This approach includes interface between solid and liquid part of the systemAnalysis was performed using ANSYS CFX software. CFX software allows solution of heat transfer equations in solid and liquid part, and solution of the flow equations in the liquid part. Coolant flow in the DFW was assumed turbulent and was resolved using Reynolds averaged Navier-Stokes equations with Shear Stress Transport turbulence model. Meshing was performed using CFX method available within ANSYS. The data cloud for thermal loading consisting of volumetric heating and surface heating was imported into CFX Volumetric heating source was generated using Attila software. Surface heating was obtained using radiation heat transfer analysis. Our results allowed us to identify areas of excessive heating. Proposals for cooling channel relocation were made. Additional suggestions were made to improve hydraulic performance of the cooling system.},

  doi          = {10.13182/fst14-955},

  journal      = {Fusion Science and Technology},

  number       = 3,

  volume       = 68,

  place        = {United States},

  year         = {Fri Jul 24 00:00:00 EDT 2015},

  month        = {Fri Jul 24 00:00:00 EDT 2015}

}

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