Design Characteristics of N2 Brayton Cycle Power Conversion System coupled with an SFR in terms of Thermal Balance and Cycle Efficiency

The computational code of REGACY (REgenerative GAs brayton CYcle analyzer) to set the heat balance and to obtain cycle efficiency of N2 Brayton cycle PCS were recently developed and its verification process has been performed by using the reference design parameters of N2 PCS for ASTRID. The purpose of this study is to investigate cycle efficiencies in N2 Brayton cycle PCS for ASTRID complying with various design parameters such as the working fluids and cycle configurations. Design characteristics of N2 Brayton cycle power conversion system coupled with ASTRID were investigated by using the REGACY code. System performance of the specified N2 Brayton cycle PCS according to variations of working fluids and cycle configurations were taken into account in the present study. The evaluation results from the present study are expected to be utilized to obtain the optimal system configuration with improved cycle efficiency of N2 Brayton cycle PCS.