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Nuclear reactor (optional), fuel assembly for seed-blanket subassembly of nuclear reactor (optional) as well as fuel element for fuel assembly

A technology of fuel elements and fuel assemblies, which is used in the fields of reactor fuel materials, fuel elements, nuclear power generation, etc.

Active Publication Date: 2014-08-06
THORIUM POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] however, all fuel elements in this assembly are made of fissile material traditionally used in reactors such as VVER-1000; thus, the generation of large quantities of reactor-grade plutonium is a particular disadvantage of reactors with such assemblies

Method used

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  • Nuclear reactor (optional), fuel assembly for seed-blanket subassembly of nuclear reactor (optional) as well as fuel element for fuel assembly
  • Nuclear reactor (optional), fuel assembly for seed-blanket subassembly of nuclear reactor (optional) as well as fuel element for fuel assembly
  • Nuclear reactor (optional), fuel assembly for seed-blanket subassembly of nuclear reactor (optional) as well as fuel element for fuel assembly

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Embodiment Construction

[0041] figure 1 There is shown a nuclear reactor core 1 comprising a set of fuel assemblies 2 comprising an ignition region and a regeneration region, the fuel assemblies 2 forming a hexagonal configuration, wherein the fuel assemblies themselves have the form of a regular hexagon in top view. Core 1 has the same geometry and dimensions as the core of a conventional VVER-1000 light water reactor, such that the reactor will reassemble this assembly to form a core of 163 fuel assemblies 2 . The core 1 differs from that of the VVER-1000 reactor in the composition and structure of the fuel assemblies 2, as published in more detail below. The core 1 and fuel assembly 2 presented here have been developed for use in a conventional VVER-1000 light water reactor; however, similar cores and fuel assemblies can be produced for use in other standard or special design reactors without departing from this invention range.

[0042] The core 1 is surrounded by a reflector 3 which preferably...

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Abstract

The invention relates to a fuel element for a fuel assembly of a nuclear reactor. The fuel element comprises a nucleus containinga fissionable material and cladding which seals the nucleus, wherein the fuel element is provided with a multifoil contour which forms spiral ribs; and the spiral ribs comprise the fissionable material and have axially torsional intervals, and the length of each interval is 5%-20% of that of the fuel element. According to embodiments of the invention, waste which can used for manufacturing nuclear weapons cannot be generated, a novel loading and unloading system is used for a first embodiment of the invention tomaximize recycling of fuel in a seed; and the system further guarantees that used nuclear fuel cannot be used for manufacturing nuclear weapons.

Description

[0001] The present invention has an international application date of December 26, 2007, an international application number of PCT / RU2007 / 000732, a Chinese national application number of 200780102099.4, and an invention name of "Nuclear Reactor (Optional), for Nuclear Reactor (Optional) The divisional application of the invention patent application of the fuel assembly of the ignition zone-regenerating zone subassembly and the fuel element used for the fuel assembly. technical field [0002] The present invention relates generally to the design of light water reactors in which thorium is used as fuel, and in particular to the design of unjacketed fuel assemblies forming the core of a pressurized water reactor (PWR), such as VVER-1000. Background technique [0003] Nuclear energy is an important source of energy throughout the world. Many countries that lack sufficient local fossil fuel resources rely primarily on nuclear energy to generate electricity. In many other countr...

Claims

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Application Information

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IPC IPC(8): G21C3/28G21C3/58G21C3/07
CPCY02E30/38Y02E30/30
Inventor S·M·巴什基尔采夫V·F·库兹涅佐夫V·V·克夫罗莱夫A·G·莫罗佐夫
Owner THORIUM POWER
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