Investigation of a gas turbine-modular helium reactor using reactor grade plutonium with 232Th and 238U |
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| Affiliation: | 1. ATILIM University, Faculty of Engineering, Department of Mechanical Engineering 06836, İncek, Gölbaşı, Ankara, Turkey;2. BAŞKENT University, Faculty of Engineering, Department of Mechanical Engineering, Etimesgut, Ankara, Turkey;3. GAZİ University, Faculty of Technology, Department of Energy Systems Engineering, Teknikokullar, Ankara, Turkey;1. Department of Energy Engineering and Physics, Tehran Polytechnic University, 424 Hafez Ave., P.O. Box: 15875-4413, Tehran, Iran;2. Nuclear Science and Technology Research Institute, End of North Karegar Ave., P.O. Box: 14359-836, Tehran, Iran;1. Department of Nuclear Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-N1-9 Ookayama, Meguro-ku, Tokyo 152-8550, Japan;2. Laboratory for Advanced Nuclear Energy, Institute for Innovative Research, Tokyo Institute of Technology, 2-12-1-N1-9 Ookayama, Meguro-ku, Tokyo 152-8550, Japan;1. State Scientific Center ‘Institute of Immunology’, 115478 Moscow, Russian Federation;2. Institute of Fine Chemical Technologies, Moscow Technological University, 119571 Moscow, Russian Federation;1. Graduate School of Frontier Science, The University of Tokyo, Kashiwanoha, Chiba 277-8568, Japan;2. Department of ITER Project, Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan |
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| Abstract: | Utilization of natural uranium (nat-U) and thorium as fertile fuels has been investigated by in a Gas Turbine – Modular Helium Reactor (GTMHR) using reactor grade plutonium as driver fuel. A neutronic analysis for the full core reactor was performed by using MCNP5 with ENDF/B-VI cross-section library. Different mixture ratios were tested in order to find the appropriate mixture ratio of fertile and fissile fuel particles that gives a comparable keff value of the reference uranium fuel. Time dependent calculations were performed by using MONTEBURN2.0 with ORIGEN2.2 for each selected mixture. Different parameters (operation time, burnup value, fissile isotope change, etc.) were subject of performance comparison. The operation time and burnup values were close to each other with nat-U and thorium, namely 3205 days and 176 GWd/MTU for the former and 3175 days 181 GWd/MTU for the latter fertile fuel. In addition, the fissile isotope amount changed from initially 6940.1 kg–4579.2 kg at the end of its operation time for nat-U. These values were obtained for thorium as 6603.3 kg–4250.2 kg, respectively. |
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| Keywords: | GT-MHR Fertile fuel comparison Natural uranium Thorium Palladium production |
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