Title:
Experimental and numerical investigation of the thermal performance of the gas-cooled divertor plate concept

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dc.contributor.advisor Abdel-Khalik, Said I.
dc.contributor.advisor Yoda, Minami
dc.contributor.author Gayton, Elisabeth Faye en_US
dc.contributor.committeeMember Ghiaasiaan, S. Mostafa
dc.contributor.department Nuclear Engineering en_US
dc.date.accessioned 2009-01-22T15:42:17Z
dc.date.available 2009-01-22T15:42:17Z
dc.date.issued 2008-11-19 en_US
dc.description.abstract Experimental and numerical studies simulating the gas-cooled divertor plate design concept have been carried out. While thermo-fluid and thermo-mechanical analyses have been previously performed to show the feasibility of the divertor plate design and its ability to accommodate a maximum heat flux of up to 10 MW/m2, no experimental data have heretofore been published to support or validate such analyses. To that end, this investigation has been undertaken. A test module with prototypical cross-sectional geometry has been designed, constructed, and instrumented. Experiments spanning the prototypical Reynolds numbers of the helium-cooled divertor have been conducted using pressurized air as the coolant. A second test module where the planar jet exiting the inlet manifold is replaced by a two-dimensional hexagonal array of circular jets over the entire top surface of the inlet manifold has also been tested. The thermal performance of both test modules with and without a porous metallic foam layer in the gap between the outer surface of the inlet manifold and the cooled surfaces of the pressure boundary were directly compared. For a given mass flow rate, the slot design with the metallic foam insert showed the highest heat transfer coefficient, with a pressure drop lower than that of the array of circular jets without foam. Additionally, numerical simulations matching the experimental operating conditions for the two cases without foam were performed using the computational fluid dynamics software package, FLUENT® v6.2. Comparisons of the experimental and numerical pressure drop, temperature, and heat transfer coefficient were made. en_US
dc.description.degree M.S. en_US
dc.identifier.uri http://hdl.handle.net/1853/26517
dc.publisher Georgia Institute of Technology en_US
dc.subject Porous media en_US
dc.subject Jet-impingement en_US
dc.subject CFD en_US
dc.subject FLUENT en_US
dc.subject Divertors en_US
dc.subject Plasma facing components en_US
dc.subject Fusion en_US
dc.subject.lcsh Heat Transmission
dc.subject.lcsh Fusion reactors Cooling
dc.subject.lcsh Nuclear fusion
dc.title Experimental and numerical investigation of the thermal performance of the gas-cooled divertor plate concept en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor Abdel-Khalik, Said I.
local.contributor.advisor Yoda, Minami
local.contributor.corporatename George W. Woodruff School of Mechanical Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 196f5fb4-8c6b-4b41-add5-06b1d33b971c
relation.isAdvisorOfPublication d318e6bc-95be-4fd2-bb0a-19fe480686df
relation.isOrgUnitOfPublication c01ff908-c25f-439b-bf10-a074ed886bb7
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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