文献类型：期刊文献

英文题名：Review of SCO2 Brayton Cycle Active-Cooling Application Technologies for Hypersonic Vehicles

作者：Li, Haowei[1];Song, Guangze[1];Xian, Shengxian[1];Xu, Qing[1];Zhou, Lingbo[2]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China

年份：2025

卷号：18

期号：24

外文期刊名：ENERGIES

收录：SCI-EXPANDED(收录号：WOS:001648239300001)、、EI(收录号：20260119843269)、Scopus(收录号：2-s2.0-105026097848)、WOS

基金：This research was funded by Guangdong Basic and Applied Basic Research Foundation, grant number 2023A1515110541, Guangdong Basic and Applied Basic Research Foundation, grant number 2025A1515010722 and Guangdong Basic and Applied Basic Research Foundation, grant number 2024A1515010637.

语种：英文

外文关键词：SCO2 Brayton cycle; printed circuit heat exchanger; SCO2 heat-transfer characteristics; cycle operational dynamics; hypersonic vehicle

外文摘要：Conventional thermoelectric conversion and onboard power-generation systems struggle to meet the active-cooling requirements of hypersonic vehicles under extreme conditions. The SCO2 Brayton cycle emerges as a promising solution due to its high density, specific heat capacity, cost-effectiveness, and superior heat-transfer characteristics. This review analyzes the evolution of SCO2 Brayton cycle configurations, focusing on the following four primary types: recuperated, compression, combined, and other specialized cycles. Their working principles and processes are summarized. Current application progress is detailed across the following four key areas: cycle layout design, printed circuit heat exchangers, SCO2 heat-transfer behavior, and operational dynamics. Future research directions for SCO2-based active cooling in hypersonic applications are identified. Emphasis is placed on understanding SCO2 flow dynamics within cooling channels during transient vehicle operation and investigating component coupling effects in integrated power-generation systems.