Supercritical Carbon Dioxide turbomachinery design for water-cooled Small Modular Reactor application

Design consideration of supercritical CO2 power cycle integral experiment loop

“…Because of the operating conditions, a compact power conversion system can be designed due to high density resulting in significantly smaller turbomachinery and heat exchangers. As the physical size of a power conversion system can be effectively reduced with the SeCO 2 cycle, it can be considered as an alternative to the steam Rankine cycle for SMR (Small Modular Reactor) application [2,3]. Furthermore, the SeCO 2 cycle has a wide application range for various heat sources including nuclear power, concentrated solar power, coal power and bottoming cycle of high temperature fuel cell or air gas turbine systems [1,4,5].…”

Optimization of a recompression supercritical carbon dioxide cycle for an innovative central receiver solar power plant

“…Regarding the design of turbomachinery for supercritical CO 2 cycles, it is still a new field, with relatively little industrial experience since most of the available turbomachinery are design assuming ideal gas assumptions. As it was discussed by Lee et al [33], one of the major issues of sCO 2 Brayton cycles is the selection and design of appropriate turbomachinery. It was defined that radial turbomachinery design will be suitable for small powers (up to a few MW scale) [34] while larger demonstrators will be available using axial designs [35].…”

A Conceptual Study of a Supercritical CO2-Cooled Micro Modular Reactor

“…T fo´Tci (8) δ eff " r fuel lnˆ1`t gap r fuel˙ ( 9) All of the above equations result in Figures 14 and 15 which clearly show hot-channel temperature distributions at BOL, MOL1, MOL2, and EOL conditions of the MMR core. Meanwhile, Table 7 contains the maximum temperatures of fuel and cladding.…”

“…Therefore, the KAIST MMR is a kind of "all-in-one" type super-compact and truck-loadable SMR. There are many supporting studies about the SCO 2 Brayton cycle for nuclear applications [7][8][9]. Several research institutes around the world have already achieved electricity generation with experimental SCO 2 power conversion systems and they are trying to improve the system performances [10][11][12][13].…”