feature of BWRs, the moderator-to-fuel ratio of the RBWR can be reduced to a
small enough value as to achieve multi-recycling of TRUs.
Different RBWR cores have been designed for different purposes. The RBWRAC is a break-even reactor with a Pu breeding ratio more than 1.0. The RBWR-TB
and RBWR-TB2 are TRU burners that can fission TRUs at a rate more than twice
the rate of TRU production by the ABWR. Each of the reactor types achieves
the foregoing performances under the condition requiring negative void reactivity
coefficient and multi-recycling capability. With the multi-recycling capability, the
RBWR-AC/TB/TB2 can continue to fission or recycle TRUs while maintaining
the criticality and fulfilling the various constraints, such as sufficient core shutdown
margin and negative reactivity coefficient.
The RBWR appears to be a promising candidate energy source that responds to
the needs for energy security, for reducing greenhouse-gas emissions, and for
mitigating the negative environmental impact of TRUs.
Open Access This chapter is distributed under the terms of the Creative Commons Attribution
Noncommercial License, which permits any noncommercial use, distribution, and reproduction in
any medium, provided the original author(s) and source are credited.
References
1. Takeda R, Miwa J, Moriya K (2007) BWRs for long-term energy supply and for fissioning
almost all transuraniums. In: Proceedings of the GLOBAL 2007, Boise, ID, September 9–13
2. Takeda R, Miwa J, Moriya K (2012) RBWRs for fissioning almost all uranium and transuraniums. Trans Am Nucl Soc 107:853
3. Hino T, Ohtsuka M, Takeda R, Miwa J, Moriya K (2014) Core designs of RBWR (resourcerenewable BWR) for recycling and transmutation of transuranium elements: an overview.
In: Proceedings of ICAPP 2014, Charlotte, April 2014
4. Ducat GA et al (1974) Evaluation of the Parfait blanket concept for fast breeder reactors.
MITNE-157. http://inis.iaea.org/search/search.aspx?orig_q=RN:5141813
5. Morimoto Y, Maruyama H, Ishii K, Aoyama M (1989) Neutronic analysis code for fuel
assembly using a vectorized Monte Carlo method. Nucl Sci Eng 103:351–358
6. Downar T, Hall A, Jabbay D, Ward A, Greenspan E, Ganda F, Bartoloni F, Bergmann R,
Varela C, Disanzo C, Kazimi M, Karahan A, Shwageraus E, Feng B, Herman B (2012)
Technical evaluation of the Hitachi Resource-Renewable BWR (RBWR) design concept.
EPRI Technical Report 1025086
7. Yang WS, Kim TK, Grandy C, Hill RN (2008) Performance characteristics of metal and oxide
fuel cores for a 1000 MWt advanced burner reactor. In: Proceedings of ARWIF08, Fukui,
February 2008
154
T. Hino et al.
small enough value as to achieve multi-recycling of TRUs.
Different RBWR cores have been designed for different purposes. The RBWRAC is a break-even reactor with a Pu breeding ratio more than 1.0. The RBWR-TB
and RBWR-TB2 are TRU burners that can fission TRUs at a rate more than twice
the rate of TRU production by the ABWR. Each of the reactor types achieves
the foregoing performances under the condition requiring negative void reactivity
coefficient and multi-recycling capability. With the multi-recycling capability, the
RBWR-AC/TB/TB2 can continue to fission or recycle TRUs while maintaining
the criticality and fulfilling the various constraints, such as sufficient core shutdown
margin and negative reactivity coefficient.
The RBWR appears to be a promising candidate energy source that responds to
the needs for energy security, for reducing greenhouse-gas emissions, and for
mitigating the negative environmental impact of TRUs.
Open Access This chapter is distributed under the terms of the Creative Commons Attribution
Noncommercial License, which permits any noncommercial use, distribution, and reproduction in
any medium, provided the original author(s) and source are credited.
References
1. Takeda R, Miwa J, Moriya K (2007) BWRs for long-term energy supply and for fissioning
almost all transuraniums. In: Proceedings of the GLOBAL 2007, Boise, ID, September 9–13
2. Takeda R, Miwa J, Moriya K (2012) RBWRs for fissioning almost all uranium and transuraniums. Trans Am Nucl Soc 107:853
3. Hino T, Ohtsuka M, Takeda R, Miwa J, Moriya K (2014) Core designs of RBWR (resourcerenewable BWR) for recycling and transmutation of transuranium elements: an overview.
In: Proceedings of ICAPP 2014, Charlotte, April 2014
4. Ducat GA et al (1974) Evaluation of the Parfait blanket concept for fast breeder reactors.
MITNE-157. http://inis.iaea.org/search/search.aspx?orig_q=RN:5141813
5. Morimoto Y, Maruyama H, Ishii K, Aoyama M (1989) Neutronic analysis code for fuel
assembly using a vectorized Monte Carlo method. Nucl Sci Eng 103:351–358
6. Downar T, Hall A, Jabbay D, Ward A, Greenspan E, Ganda F, Bartoloni F, Bergmann R,
Varela C, Disanzo C, Kazimi M, Karahan A, Shwageraus E, Feng B, Herman B (2012)
Technical evaluation of the Hitachi Resource-Renewable BWR (RBWR) design concept.
EPRI Technical Report 1025086
7. Yang WS, Kim TK, Grandy C, Hill RN (2008) Performance characteristics of metal and oxide
fuel cores for a 1000 MWt advanced burner reactor. In: Proceedings of ARWIF08, Fukui,
February 2008
154
T. Hino et al.