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GB/T 15146.12-2017: Nuclear criticality safety for fissile materials outside reactors -- Part 12: Burnup credit for low water reactor (LWR) fuel
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| GB/T 15146.12-2017 | English | 139 |
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Nuclear criticality safety for fissile materials outside reactors -- Part 12: Burnup credit for low water reactor (LWR) fuel
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GB/T 15146.12-2017
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Basic data | Standard ID | GB/T 15146.12-2017 (GB/T15146.12-2017) | | Description (Translated English) | Nuclear criticality safety for fissile materials outside reactors -- Part 12: Burnup credit for low water reactor (LWR) fuel | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F09 | | Classification of International Standard | 27.120.30 | | Word Count Estimation | 7,745 | | Date of Issue | 2017-07-31 | | Date of Implementation | 2018-02-01 | | Quoted Standard | GB 15146.1; GB 15146.2 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the criteria for considering the reactivity effects of fuel irradiation and radioactive decay in the critical safety control of commercial light water reactor uranium dioxide fuel components in storage and transport. This standard also describes the requirements for describing fuel burnup in the input of critical safety evaluation. This standard applies to the storage and transport of commercial light water reactor uranium dioxide fuel components. This standard assumes that the fuel and any fixed combustible absorbers are contained within the complete assembly. Fuel for any decomposition, reinforcement, damage or reassembly is required for further analysis. | GB/T 15146.12-2017: Nuclear criticality safety for fissile materials outside reactors -- Part 12: Burnup credit for low water reactor (LWR) fuel
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Nuclear criticality safety for fissile materials outside reactors. Part 12. Burnup credit for low water reactor (LWR) fuel
ICS 27.120.30
F09
National Standards of People's Republic of China
Nuclear criticality safety of fissile material outside the reactor
Part 12. Light water reactor fuel burn credit system
Part 12.Burnupcreditforlowwaterreactor (LWR) fuel
2017-07-31 Posted
2018-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
"Nuclear criticality safety of fissile material outside reactor" has been or is planned to be released in 12 parts.
--- GB 15146.1 Nuclear criticality safety of fissile material outside the reactor Part 1. Administrative provisions on nuclear criticality safety;
--- GB 15146.2 nuclear criticality fissile material outside the reactor Part 2 of the fissile material handling, processing, processing
Basic technical rules and subcritical limits;
--- GB 15146.3 Nuclear criticality safety of fissile material outside the reactor Part 3. Nuclear criticality safety of fissile material storage
Claim;
--- GB 15146.4 nuclear critical fissile material outside the reactor safety fissile material containing aqueous steel pipe transfer of nuclear
Critical safety guidelines;
--- GB 15146.5 Nuclear criticality safety of fissile material outside the reactor Plutonium - Guidelines and critical nuclear control of natural uranium mixtures
Critical limit
--- GB/T 15146.6 nuclear criticality fissile material outside the reactor safety Part 6. Borosilicate glass Raschig ring and its
Use criteria
--- GB 15146.7 nuclear criticality fissile material outside the reactor sub-critical neutron proliferation in situ measurement safety requirements;
--- GB 15146.8 Nuclear criticality safety of fissile material outside the reactor Part 8. Heap operation, storage, transportation Light water reactor combustion
Nuclear Criticality Safety Guidelines
--- GB/T 15146.9 fissile material outside the reactor nuclear criticality safety nuclear criticality detection and alarm system performance and
Inspection requirements;
--- GB 15146.10 nuclear criticality fissile material outside the reactor fixed neutron absorber safety requirements;
--- GB/T 15146.11 nuclear criticality fissile material outside the reactor based on the limit and control of moderator nuclear criticality
Safety;
--- GB/T 15146.12 Nuclear criticality safety of fissile material outside reactor - Part 12. Credit rating of light water reactor fuel burnup.
This section is "Part 12 of the Nuclear Criticality Safety of Fissile Materials Outside Reactors".
This part is proposed by China National Nuclear Corporation.
This part of the National Nuclear Standardization Technical Committee (SAC/TC58) centralized.
This part of the drafting unit. China Nuclear Power Engineering Co., Ltd., China Institute of Atomic Energy.
The main drafters of this section. Huo Xiaodong, Zhu Qingfu, Yang Haifeng, Yi Xuan, Shao Zeng.
Nuclear criticality safety of fissile material outside the reactor
Part 12. Light water reactor fuel burn credit system
1 Scope
This part of the Nuclear Criticality Safety of Fissile Materials Outside Reactor provides for the storage and transport of uranyl dioxide fuel assemblies for commercial light water reactors
Criteria for Consideration of Reactive Effects Caused by Fuel Irradiation and Radioactive Decay in Critical Safety Control. This section also presents the critical safety
The inputs to the evaluation describe the fuel burnup requirements.
This section applies to commercial light water reactor uranium dioxide fuel storage and transportation components.
This section assumes that the fuel and any fixed combustible absorber are included in the complete module. In any way to decompose, reinforce,
Damaged or reassembled fuel needs further analysis.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB 15146.1 Nuclear criticality safety of fissile material outside reactor Part 1. Administrative provisions on nuclear criticality safety
GB 15146.2 Nuclear criticality safety of fissile material outside the reactor Part 2 Basic fissile material handling, processing and handling
Technical rules and subcritical limits
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Combustible absorber burnableabsorber
A material added to a fuel assembly to control reactivity by absorbing neutrons, controls reactivity primarily at an early stage of the life of the fuel. along with
Irradiation continued, the combustible absorber neutron absorption decreased. If the combustible absorber is an integral part of the fuel assembly (not removable
Move), known as "fixed", otherwise known as "removable." This section refers to the combustible absorber unless otherwise specified, all means fixed
Type
3.2
Flammable absorber credit system burnableabsorbercredit
Consideration is given to the reduction of total reactivity caused by the presence of stationary combustible absorbers. As the fuel containing combustible absorber by irradiation in the life
Initial reactivity may increase, and fuel burn analysis should be performed when believing flammable absorbers in post-irradiated fuel.
3.3
Burn burnup
The energy released per unit mass of initial actinides (such as uranium and plutonium) in a region of a fuel assembly in that region, that is,
Than the fuel consumption.
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