Abstract
A 500 kg mass solid nuclear reactor concept with 20 wt.% uranium nitride fuel was proposed in the 2009 ICAPP conference for the application to space probe. Critical mass reduction of this solid reactor is studied here in order to obtain reference data for possible power/mass ratio improvement. By considering some possibilities on structural material and fuel material, mass reduction effects of some options are summarized. By replacing stainless steel with low neutron absorbing material, about 100 kg mass reduction is possible. Uranium-233 can reduce the reactor mass to less than half. Despite the small temperature coefficient and the delayed neutron fraction, minor actinide 241Am also showed a good mass reduction effect as a fuel in the fast neutron spectrum system. Highly enriched U thermal neutron spectrum system may be an reasonable option, provided nuclear non-proliferation restriction is cleared.
| Original language | English |
|---|---|
| Title of host publication | 2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings |
| Publisher | International Congress on Advances in Nuclear Power Plants, ICAPP |
| ISBN (Electronic) | 9784890471676 |
| Publication status | Published - 2017 Jan 1 |
| Event | 2017 International Congress on Advances in Nuclear Power Plants: A New Paradigm in Nuclear Power Safety, ICAPP 2017 - Fukui and Kyoto, Japan Duration: 2017 Apr 24 → 2017 Apr 28 |
Other
| Other | 2017 International Congress on Advances in Nuclear Power Plants: A New Paradigm in Nuclear Power Safety, ICAPP 2017 |
|---|---|
| Country | Japan |
| City | Fukui and Kyoto |
| Period | 17/4/24 → 17/4/28 |
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ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Nuclear Energy and Engineering
Cite this
Investigation to reduce mass of a ultra-light solid reactor for electricity supply in environments without human maintenance. / Akie, Hiroshi; Yamaji, Akifumi; Kugo, Teruhiko; Iwamura, Takamichi; Suyama, Kenya.
2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings. International Congress on Advances in Nuclear Power Plants, ICAPP, 2017.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Investigation to reduce mass of a ultra-light solid reactor for electricity supply in environments without human maintenance
AU - Akie, Hiroshi
AU - Yamaji, Akifumi
AU - Kugo, Teruhiko
AU - Iwamura, Takamichi
AU - Suyama, Kenya
PY - 2017/1/1
Y1 - 2017/1/1
N2 - A 500 kg mass solid nuclear reactor concept with 20 wt.% uranium nitride fuel was proposed in the 2009 ICAPP conference for the application to space probe. Critical mass reduction of this solid reactor is studied here in order to obtain reference data for possible power/mass ratio improvement. By considering some possibilities on structural material and fuel material, mass reduction effects of some options are summarized. By replacing stainless steel with low neutron absorbing material, about 100 kg mass reduction is possible. Uranium-233 can reduce the reactor mass to less than half. Despite the small temperature coefficient and the delayed neutron fraction, minor actinide 241Am also showed a good mass reduction effect as a fuel in the fast neutron spectrum system. Highly enriched U thermal neutron spectrum system may be an reasonable option, provided nuclear non-proliferation restriction is cleared.
AB - A 500 kg mass solid nuclear reactor concept with 20 wt.% uranium nitride fuel was proposed in the 2009 ICAPP conference for the application to space probe. Critical mass reduction of this solid reactor is studied here in order to obtain reference data for possible power/mass ratio improvement. By considering some possibilities on structural material and fuel material, mass reduction effects of some options are summarized. By replacing stainless steel with low neutron absorbing material, about 100 kg mass reduction is possible. Uranium-233 can reduce the reactor mass to less than half. Despite the small temperature coefficient and the delayed neutron fraction, minor actinide 241Am also showed a good mass reduction effect as a fuel in the fast neutron spectrum system. Highly enriched U thermal neutron spectrum system may be an reasonable option, provided nuclear non-proliferation restriction is cleared.
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M3 - Conference contribution
AN - SCOPUS:85036459791
BT - 2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings
PB - International Congress on Advances in Nuclear Power Plants, ICAPP
ER -