Cobra-IE Evaluation by Simulation of the NUPEC BWR Full-Size Fine-Mesh Bundle Test (BFBT)

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The COBRA-IE computer code is a thermal-hydraulic subchannel analysis program capable of simulating phenomena present in both PWRs and BWRs. As part of ongoing COBRA-IE assessment efforts, the code has been evaluated against experimental data from the NUPEC BWR Full-Size Fine-Mesh Bundle Tests (BFBT). The BFBT experiments utilized an 8 x 8 rod bundle to simulate BWR operating conditions and power profiles, providing an excellent database for investigation of the capabilities of the code. Benchmarks performed included steady-state and transient void distribution, single-phase and two-phase pressure drop, and steady-state and transient critical power measurements. COBRA-IE effectively captured the trends seen ... continued below

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Burns, C. J. and Aumiler, D. L. April 26, 2006.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 25 times . More information about this article can be viewed below.

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  • Bettis Atomic Power Laboratory
    Publisher Info: Bettis Atomic Power Laboratory (BAPL), West Mifflin, PA
    Place of Publication: West Mifflin, Pennsylvania

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Description

The COBRA-IE computer code is a thermal-hydraulic subchannel analysis program capable of simulating phenomena present in both PWRs and BWRs. As part of ongoing COBRA-IE assessment efforts, the code has been evaluated against experimental data from the NUPEC BWR Full-Size Fine-Mesh Bundle Tests (BFBT). The BFBT experiments utilized an 8 x 8 rod bundle to simulate BWR operating conditions and power profiles, providing an excellent database for investigation of the capabilities of the code. Benchmarks performed included steady-state and transient void distribution, single-phase and two-phase pressure drop, and steady-state and transient critical power measurements. COBRA-IE effectively captured the trends seen in the experimental data with acceptable prediction error. Future sensitivity studies are planned to investigate the effects of enabling and/or modifying optional code models dealing with void drift, turbulent mixing, rewetting, and CHF.

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  • OECD/NRC Benchmark based on NUPEC BWR Full-size Fine-mesh Bundle Tersts (BFBT) - Third Workshop (BFBT-3), Pisa, Italy, 04/26/2006 - 04/28/2006

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  • Report No.: B-T-3653
  • Grant Number: DE-AC11-98PN38206
  • Office of Scientific & Technical Information Report Number: 923318
  • Archival Resource Key: ark:/67531/metadc899770

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  • April 26, 2006

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Feb. 20, 2017, 2:18 p.m.

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Burns, C. J. and Aumiler, D. L. Cobra-IE Evaluation by Simulation of the NUPEC BWR Full-Size Fine-Mesh Bundle Test (BFBT), article, April 26, 2006; West Mifflin, Pennsylvania. (digital.library.unt.edu/ark:/67531/metadc899770/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.