Potential improvements of supercritical recompression CO2 Brayton cycle by mixing other gases for power conversion system of a SFR

Design consideration of supercritical CO2 power cycle integral experiment loop

“…However, advantages of the SeCO 2 cycle were purely evaluated from the theoretical thermodynamic cycle analysis point of view based on fluid property databases [11,12]. Furthermore, a thermodynamic analysis for CO 2 mixture with noble gas was performed to study the potental improvement of the power cycle performance [13]. To validate the predicted performance, an integral test facility of the SeCO 2 cycle must be built.…”

Development of an advanced printed circuit heat exchanger analysis code for realistic flow path configurations near header regions

“…However, this assumption gives unsatisfactory prediction when the fluid properties change dynamically with temperature and pressure. For instance, the supercritical CO 2 brayton cycle near by the critical point cannot be accurately modeled if its properties are assumed to be constant -it undergoes dynamic property changes near the critical point [27]. In this research, we solve the presented governing equations numerically without assuming any fluid properties as constants.…”

“…Nusselt number and friction factor correlation for PCHE geometry [20][21][22] (use in courtesy the [27] Kim [21] Ngo et al [22] The discussed effects of header location on PCHE thermal performance imply a few important system design directions. Its header locations may be considered of critical importance when the system/and PCHE is designed to run with relatively low effectiveness.…”

Thermoeconomic Analysis and Optimization of a New Combined Supercritical Carbon Dioxide Recompression Brayton/Kalina Cycle

“…Jeong et al optimized the performance of a S-CO 2 -based binary gas mixture Brayton cycle with a sodium-cooled fast reactor. They selected a mixture of CO 2 and some other gases as the working fluid so that the critical point of the working fluid is shifted [13]. Yoon et al concluded that cycle simplicity, high efficiency and compact turbomachinery and heat exchangers are significant advantages for the S-CO 2 cycle [14].…”