Design and Assessment of Lead–sCO2 Intermediate Heat Exchanger for LFRs Fanli Kong, Chi Xu, Yijiang Fan, Dali Yu, Jie Yu and Shuyong Liu E3S Web Conf., 236 (2021) 01012 Published online: 09 February 2021 DOI: 10.1051/e3sconf/202123601012