GB/T 15146.12-2017 English PDF

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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
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15146.12-2017	139	Add to Cart	3 days	Nuclear criticality safety for fissile materials outside reactors -- Part 12: Burnup credit for low water reactor (LWR) fuel	Valid

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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

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
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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