Published September 2021 | Version v1
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Report of summer holiday practical training 2020. Feasibility study on nuclear battery using HTTR core. Feasibility study for nuclear design (3)

Creators

  • 1. Japan Atomic Energy Agency, Sector of Fast Reactor and Advanced Reactor Research and Development, Oarai Research and Development Institute, HTGR Research and Development Center, Department of HTTR, Oarai, Ibaraki (Japan)
  • 2. Kyushu University, Fukuoka (Japan)
  • 3. Al-Farabi Kazakh National University, Almaty (Kazakhstan)

Description

As a summer holiday practical training 2020, the feasibility study for nuclear design of a nuclear battery using HTTR core was carried out, and the downsizing of reactor core were studied by the MVP-BURN. As a result, it is clear that a 1.6 m radius reactor core, containing 54 (18×3 layers) fuel blocks with 20% enrichment of 235U, and BeO neutron reflector, could operate continuously for 30 years with thermal power of 5 MW. Number of fuel blocks of this compact core is 36% of the HTTR core. As a next step, the further downsizing of core by changing materials of the fuel block will be studied. (author)

Availability note (English)

Also available from JAEA; DOI: https://doi.org/10.11484/jaea-technology-2021-016

Abstract (Japanese)

2020年度の夏期休暇実習において、昨年度に引き続きHTTR炉心を原子力電池に見立てた場合の核的な予備検討として、MVP-BURNを用いて炉心の小型化について検討した。この結果、235U濃縮度20%、54燃料ブロック(18×3層)炉心、半径1.6mのBeO反射体を使用すれば5MWで30年の連続運転が可能になることが明らかとなった。この小型炉心の燃料ブロック数は、HTTR炉心の36%に相当する。今後は、更なる小型化を目指して、燃料ブロックの材料を変更したケースについて検討する予定である。(著者)

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Additional details

Additional titles

Original title (Japanese)
2020年度夏期休暇実習報告.HTTR炉心を用いた原子力電池に関する予備的検討.核設計のための予備検討 (3)

Identifiers

DOI
10.11484/jaea-technology-2021-016;

Publishing Information

Imprint Pagination
24 p.
Report number
JAEA-Technology--2021-016

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
53075055
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Progress Report
Descriptors DEI
BORON 10; BURNABLE POISONS; BURNUP; COGENERATION; ENERGY CONVERSION; ENRICHMENT; HTTR REACTOR; M CODES; MULTIPLICATION FACTORS; NUCLEAR DATA COLLECTIONS; PROGRESS REPORT; REACTOR CORES; SELF-SHIELDING; THERMOELECTRIC MATERIALS; URANIUM 235
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BORON ISOTOPES; COMPUTER CODES; CONVERSION; DIMENSIONLESS NUMBERS; DOCUMENT TYPES; ENRICHED URANIUM REACTORS; EVEN-ODD NUCLEI; EXPERIMENTAL REACTORS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HEAVY NUCLEI; HELIUM COOLED REACTORS; HTGR TYPE REACTORS; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATERIALS; MINUTES LIVING RADIOISOTOPES; NEUTRON ABSORBERS; NUCLEAR POISONS; NUCLEI; ODD-ODD NUCLEI; POWER GENERATION; RADIOISOTOPES; REACTOR COMPONENTS; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; STABLE ISOTOPES; STEAM GENERATION; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
13 refs., 20 figs.