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US 2026/0253753 A1Published application
Fast Reactor and Fast Reactor Operation Method
AssigneeHitachi GE Vernova Nuclear Energy, Ltd.
InventorsKeita ENDO, Hirotaka NAKAHARA
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AssigneeHitachi GE Vernova Nuclear Energy, Ltd.
InventorsKeita ENDO, Hirotaka NAKAHARA
Estimating the term…
An object of the present invention is to provide a fast reactor and a fast reactor operation method capable of suppressing occurrence of freezing of a heat storage material without draining the heat storage material used in a heat storage system connected to the fast reactor when a temperature of a coolant of the fast reactor decreases in an operation mode such as a cold shutdown. A fast reactor according to the present invention includes: a first heat exchanger that performs heat exchange between a primary coolant and a secondary coolant; a second heat exchanger that performs heat exchange between the secondary coolant and a heat storage material used in a heat storage system; a first pipe through which the secondary coolant flows from the first heat exchanger toward the second heat exchanger; a second pipe through which the secondary coolant flows from the second heat exchanger toward the first heat exchanger; and a bypass pipe that is provided at an inlet and an outlet of the second heat exchanger for the secondary coolant and couples the first pipe and the second pipe.
A fast reactor comprising:
A fast reactor operation method for a fast reactor including a first heat exchanger that performs heat exchange between a primary coolant and a secondary coolant, a second heat exchanger that performs heat exchange between the secondary coolant and a heat storage material used in a heat storage system, a first pipe through which the secondary coolant flows from the first heat exchanger toward the second heat exchanger, a second pipe through which the secondary coolant flows from the second heat exchanger toward the first heat exchanger, a bypass pipe that is provided at an inlet and an outlet of the second heat exchanger for the secondary coolant and couples the first pipe and the second pipe, a valve that is configured to adjust a flow rate and provided on the second pipe between the second heat exchanger and a connection portion between the bypass pipe and the second pipe, a third pipe that couples the first pipe and the second pipe, and an air cooler provided on the third pipe, the fast reactor operation method comprising:
Dependencies are inferred from the claim text.