Reactor actuation area for traveling wave reactor and manufacturing method for reactor actuation area of traveling wave reactor

Abstract

The invention discloses a reactor actuation area for a traveling wave reactor. The reactor actuation area comprises fertile nuclides, fissile nuclides and simulated nuclides, wherein the concentration of the fertile nuclides is gradually increased along a direction from the front end part of the reactor actuation area to a novel fuel area, and the concentration of the fertile nuclides at the rear end of the reactor actuation area is the same as that of the fertile nuclides in the novel fuel area; along a direction from the front end part of the reactor actuation area to a combustion area, the shape of a concentration distribution curve of the fissile nuclides in the reactor actuation area corresponds to that of a concentration variation curve of the fissile nuclides at a certain point when breeding waves and combustion waves in the combustion area sequentially pass through the point in the combustion area; the concentration of the simulated nuclides is gradually decreased along a direction from the front end part of the reactor actuation area to the novel fuel area. The reactor actuation area has the advantages that the requirements of actuation of the traveling wave reactor for running are met, the production of reactive fluctuation is avoided, and the safety, economy and controllability of the reactor are improved. The invention also discloses a manufacturing method for the reactor actuation area.

Description

technical field [0001] The invention relates to the field of nuclear industry, in particular to a traveling wave reactor, in particular to a start-up area of ​​a fuel core body of a traveling wave reactor. Background technique [0002] A TWR (traveling wave reactor) differs from other types of reactors primarily in the way it burns fuel. It first converts the fertile nuclides into fissile nuclides, and then burns the new fissile nuclides produced in situ. This method is called "value-added-incineration" in the research. It can reduce or even eliminate aftertreatment, refueling and other auxiliary processing processes, ensuring the sustainable development of nuclear energy, and at the same time has extremely high economy and safety. [0003] In the article "Sekimoto H, Miyashita S. Startup of CANDLE burnup in fast reactor from enriched uranium core. Energy Conv Manag 2006;47:2772–80." published by Professor Sekimoto Hiroshi, Tokyo Institute of Technology, the traveling wave ...

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Problems solved by technology

This article gives the relevant design direction from the perspective of empirical analysis, but does not give a specific design plan for the start-up area of ​​the TWR

[0004] In addition, the usual TWR start-up area will cause long-term and severe reactivity fluctuations in the start-up process

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