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|a (OCoLC)ocn867865160
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|a (OCoLC)867865160
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|a (TxCM)http://hdl.handle.net/1969.1/148227
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|a TXA
|c TXA
|b eng
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|a TXAM
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|a 2012
|a Thesis
|a 1969.1/148227
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|a McDermott, Patrick Brian,
|e author.
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|a Thermal-Hydraulic Analysis of Seed-Blanket Unit Duplex Fuel Assemblies with VIPRE-01 /
|c by Patrick Brian McDermott.
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|a [College Station, Texas] :
|b [Texas A & M University],
|c [2013]
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|a 1 online resource.
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| 336 |
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|a text
|b txt
|2 rdacontent
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|a computer
|b c
|2 rdamedia
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| 338 |
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|a online resource
|b cr
|2 rdacarrier
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| 347 |
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|a text file
|b PDF
|2 rda
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| 500 |
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|a "Major Subject: Nuclear Engineering"
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| 500 |
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|a Includes vita.
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|b Master of Science
|c Texas A & M University
|d 2012
|o http://hdl.handle.net/1969.1/148227
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|a Includes bibliographical references.
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|a Text (Thesis)
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|a One of the greatest challenges facing the nuclear power industry is the final disposition of nuclear waste. To meet the needs of the nuclear power industry, a new fuel assembly design, called DUPLEX, has been developed which provides higher fuel burnups, burns transuranic waste while reducing minor actinides, reduces the long term radiotoxicity of spent nuclear fuel, and was developed for use in current light water reactors. The DUPLEX design considered in this thesis is based on a seed and blanket unit (SBU) configuration, where the seed region contains standard UO₂ fuel, and the blanket region contains an inert matrix (Pu,Np,Am)O₂-MgO-ZrO₂ fuel. The research efforts of this thesis are first to consider the higher burnup effects on DUPLEX assembly thermal-hydraulic performance and thermal safety margin over the assembly's expected operational lifetime. In order to accomplish this, an existing burnup-dependent thermal-hydraulic methodology for conventional homogeneous fuel assemblies has been updated to meet the modeling needs specific to SBU-type assemblies. The developed framework dramatically expands the capabilities of the latest thermal-hydraulic evaluation framework such that the most promising and unique DUPLEX fuel design can be evaluated. As part of this updated methodology, the posed DUPLEX design is evaluated with respect to the minimum departure from nucleate boiling ratio, peak fuel temperatures for both regions, and the peak cladding temperatures, under ANS Condition I, II, and III transient events with the thermal-hydraulic code VIPRE-01. Due to difficulty in the fabrication and handling of minor actinide dioxides, documented thermal conductivity values for the considered IMF design are unavailable. In order to develop a representative thermal conductivity model for use in VIPRE-01, an extensive literature survey on the thermal conductivity of (Pu,Np,Am)O₂-MgO-ZrO₂ component materials and a comprehensive review of combinatory models was performed. Using the updated methodology, VIPRE-01 is used to perform steady-state and transient thermal hydraulic analyses for the DUPLEX fuel assembly. During loss-of-flow accident scenarios, the DUPLEX design is shown to meet imposed safety criteria. However, using the most conservative thermal conductivity modeling approach for (Pu,Np,Am)O₂-MgO-ZrO₂, the blanket region fuel temperatures remain only slightly below the design limit. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/148227
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|a Description from author supplied metadata (automated record created 2013-12-06 12:46:38).
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|a Major Nuclear Engineering.
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|a Heterogeneous Fuel Assembly
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|a DUPLEX
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|a Nuclear
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|a Thermal-hydraulic
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|a VIPRE
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|a VIPRE-01
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|a Seed-Blanket Unit
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| 653 |
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|a SBU
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|a Ragusa, Jean Concetto,
|d 1973-
|e thesis advisor.
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|a Vierow, Karen,
|e thesis advisor.
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| 710 |
2 |
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|a Texas A & M University,
|e degree granting institution.
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| 856 |
4 |
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|u http://hdl.handle.net/1969.1/148227
|z Link to OAK Trust copy
|t 0
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| 948 |
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|a cataloged
|b h
|c 2014/1/10
|d o
|e jolivare
|f 12:33:04 pm
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| 994 |
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|a C0
|b TXA
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|a Texas A&M University
|b College Station
|c Electronic Resources
|d Available Online
|t 0
|e 2012 Thesis 1969.1/148227
|h Other scheme
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| 998 |
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|a 2012 Thesis 1969.1/148227
|t 0
|l Available Online
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