Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1740243 | Nuclear Engineering and Technology | 2013 | 14 Pages |
Abstract
HTR50S is a small modular reactor system based on HTGR. It is designed for a triad of applications to be implemented in successive stages. In the first stage, a base plant for heat and power is constructed of the fuel proven in JAEA's 950°C, 30MWt test reactor HTTR and a conventional steam turbine to minimize development risk. While the outlet temperature is lowered to 750°C for the steam turbine, thermal power is raised to 50MWt by enabling 40% greater power density in 20% taller core than the HTTR. However the fuel temperature limit and reactor pressure vessel diameter are kept. In second stage, a new fuel that is currently under development at JAEA will allow the core outlet temperature to be raised to 900°C for the purpose of demonstrating more efficient gas turbine power generation and high temperature heat supply. The third stage adds a demonstration of nuclear-heated hydrogen production by a thermochemical process. A licensing approach to coupling high temperature industrial process to nuclear reactor will be developed. The low initial risk and the high longer-term potential for performance expansion attract development of the HTR50S as a multipurpose industrial or distributed energy source.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
X. YAN, X. YAN, Y. TACHIBANA, H. OHASHI, H. SATO, Y. TAZAWA, K. KUNITOMI,