Preliminary Analysis of Supercritical CO2 loop Using MARS

Abstract

The supercritical carbon dioxide Brayton cycle has become a strong candidate for use in the next generation nuclear reactors. The simplicity, compactness, cost, and thermal efficiency are known as the main advantages of the cycle. The relatively high efficiency can be reached in lower temperature range than that of helium Brayton cycles. The size of the turbomachinery is also very small compared to the helium Brayton cycle or the steam Rankine cycle, which also contributes in reducing the cost. [1] To test the cycle under many different conditions a facility named SCO2PE has been built in KAIST. The experimental data is to be compared with simulation results from a code named MARS.