AUTHOR=Wang Lianjie , Lu Di , Yao Lei , Xiang Hongzhi , Zhao Chen TITLE=Study on Temperature Feedback Effect of Supercritical CO2–Cooled Reactor JOURNAL=Frontiers in Energy Research VOLUME=Volume 9 - 2021 YEAR=2021 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.764906 DOI=10.3389/fenrg.2021.764906 ISSN=2296-598X ABSTRACT=

As a potential new-type reactor, the supercritical CO2 (S-CO2)–cooled reactor has several advantages, such as being a simple system, having high thermal efficiency, having a small size, and being lightweight. Due to the poor neutronics moderation performance, the S-CO2–cooled reactor shows the disadvantage of a weak temperature feedback effect on reactivity. In this article, the neutronics performance of the reactor has been focused on, and the effects of temperature feedback on fuel, coolant, and moderator studied and the method to improve temperature feedback of the S-CO2 reactor proposed.