Installation of the Supercritical CO2 Compressor Performance Test Loop as a First Phase of the SCIEL facility

The Supercritical CO2 Brayton cycle power generation system is presented as a promising alternative to the present Rankine cycle. The S-CO2 Brayton cycle is one of the candidates for the next generation nuclear power plants since the S-CO2 Brayton cycle has relatively high efficiency and compactness. KAERI has been installing a Supercritical CO2 Brayton Cycle Integral Experiment Loop (SCIEL) to develop the element technologies for the S-CO2 turbomachinery and compact heat exchanger with KAIST and POSTECH joint research team. Operation and control test will be also conducted to develop the operation logic in the S-CO2 system. For actual outcomes, final goal of the SCIEL is to demonstrate the simple recuperated cycle layout with a series of recuperation process. Currently, the compressor performance test loop is completed its installation as a first phase of the SCIEL, which has a 100kW S-CO2 compressor (72,000rpm, 6.4kg/s, pressure ratio 1.8). 1