文章基本信息

标题：Design and Assessment of Lead–sCO 2 Intermediate Heat Exchanger for LFRs
本地全文：下载
作者：Fanli Kong ; Chi Xu ; Yijiang Fan 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2021
卷号：236
页码：1012
DOI：10.1051/e3sconf/202123601012
出版社：EDP Sciences
其他摘要：Lead–sCO 2 intermediate heat exchanger (IHX) was designed for lead-cooled fast reactor (LFR). The reactor coolant is lead and flowing through a circular straight channel, meanwhile, sCO 2 is heated through 5 channels with different geometries were investigated respectively, including straight channel, zigzag 52° channel, S-shaped fins, offset rectangular fins, and airfoil fins. Considering the thermal-hydraulics characteristics, mechanical structure, corrosion, and flow blockage in the IHX designs, the performance, total cost, and power density of several heat exchanger designs were evaluated and compared. Finally, a printed circuit heat exchanger (PCHE) design using the circular straight (lead) - offset rectangular fins (sCO 2 ) channels was proposed. The straight and S-shaped channels for sCO 2 flow were recommended as alternative designs under certain circumstances. However, S-shaped fins and zigzag channels will dramatically increase the cost while straight and airfoil channels will greatly increase the volume.