Search Results
Keyword：fast breeder reactor
Japan's Monju Fast Breeder Reactor Sodium Coolant Overseas Transport Planned to Start in Fiscal 2028
Japan's Ministry of Education, Culture, Sports, Science and Technology plans to include 23.7 billion yen in its fiscal 2027 budget request to advance decommissioning work for the Monju fast breeder reactor in Tsuruga City, Fukui Prefecture, including preparation costs for overseas transport of sodium coolant. The amount represents an increase of 4.9 billion yen over the previous fiscal year's budget, including supplementary budgets. Under the plan, overseas transport of sodium coolant from the Monju reactor will begin in fiscal 2028. Unlike conventional light water reactors, Monju uses metallic sodium rather than water as a coolant to remove heat from the reactor. Sodium has a boiling point of approximately 880 degrees Celsius and does not easily pressurize at high temperatures, but it can burn upon contact with water or air, making handling and management highly difficult...
2026-09-11
JAEA Plans to Adjust Decommissioning Plan for Monju Fast Breeder Reactor
The Japan Atomic Energy Agency (JAEA) announced on August 21 that it plans to adjust the decommissioning plan for the Monju fast breeder reactor in Tsuruga City, Fukui Prefecture. Under the revised plan, the remaining neutron shielding layers and other components inside the reactor, along with 227 dummy fuel assemblies, will no longer be removed separately in the current phase as originally planned, but will instead be handled together during the subsequent reactor pressure vessel dismantling phase. Monju is currently in the decommissioning process. Previously, JAEA had planned to proceed with the removal of internal reactor components within the current fiscal year, but due to two equipment failures, the related work was temporarily suspended, and the overall schedule is expected to be delayed by approximately one year. As of May 25, 595 shielding layers and related components in the reactor...
2026-08-22