Comparison of Hydrogen Generation Rate between CORA-13 Test and MELCOR Simulation: Clad Solid-Phase Oxidation Models Using Self-Developed Code MYCOAC
| Autor: | Wenxi Tian, Suizheng Qiu, Qing Lu, Yapei Zhang, Troy Haskin, Guanghui Su, Michael L. Corradini, Jun Wang |
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| Rok vydání: | 2015 |
| Předmět: |
Nuclear and High Energy Physics
Materials science 020209 energy Nuclear engineering 02 engineering and technology Condensed Matter Physics 020303 mechanical engineering & transports 0203 mechanical engineering Nuclear Energy and Engineering MELCOR Phase (matter) Heat transfer 0202 electrical engineering electronic engineering information engineering Test data Hydrogen production |
| Zdroj: | Nuclear Technology. 192:25-34 |
| ISSN: | 1943-7471 0029-5450 |
| DOI: | 10.13182/nt14-96 |
| Popis: | To better understand the MELCOR oxidation and degradation models, past work compared the MELCOR model to a CORA experiment (CORA Test 13). These MELCOR analyses specifically focused on fuel bundle heatup and clad oxidation when compared to CORA test data. The comparison allowed the authors to investigate differences between hydrogen generation data and simulation results. Several potential reasons were considered for hydrogen generation rate differences, including MELCOR input power, heat transfer modeling, the clad solid-phase oxidation model, and the gaseous steam diffusion model. This work focuses on the possible uncertainty in the clad oxidation models used in MELCOR. First, the MELCOR nodalization approach for the CORA test was reviewed. Then, the temperature history and spatial variation were examined. One main focus was to consider other clad solid-phase oxidation models to compare the MELCOR models. This was accomplished by developing a separate model, MYCOAC, using MELCOR temperature pred... |
| Databáze: | OpenAIRE |
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