发电技术2025，Vol.46Issue(3)：617-626,10.DOI:10.12096/j.2096-4528.pgt.23170
超临界二氧化碳混合工质布雷顿循环研究进展
Research Progress on Supercritical CO2-Based Mixture Brayton Cycle
摘要
Abstract
[Objectives]The supercritical CO2 Brayton cycle has the advantages of high efficiency,compact structure,enormous power generation potential,and strong scalability.CO2-based mixtures as working fluids can change the critical point and improve cycle performance,which has been the focus in recent years.It is of great significance to review its research progress for basic theoretical research and engineering application.[Methods]A review is conducted on the research progress on the application of CO2-based mixtures in the supercritical Brayton cycle.The types of commonly explored mixed working fluids are summarized.The research on cycle components and structure layout is discussed,and the commonly used cycle performance and operating conditions are analyzed.[Conclusions]The application of CO2-based mixtures can increase or decrease the critical temperature of CO2,but the predicted physical properties range is limited,and experimental data is lacking.The recompression Brayton cycle is a commonly investigated cycle layout,and thermodynamic performance and design conditions are widely focused.It is recommended to strengthen and deepen the theoretical and experimental research on the thermodynamic properties of mixed working fluids,conduct reasonable verification on the compatibility of component materials,and propose the novel cycle structure layout for the different thermodynamic properties of mixed working fluids.Further exploration is needed for the analysis of comprehensive performance and dynamic characteristics of the CO2 mixtures supercritical Brayton cycle.关键词
超临界/布雷顿循环/二氧化碳/混合工质/热力学性质/循环结构/循环性能Key words
supercritical/Brayton cycle/carbon dioxide/mixed fluids/thermodynamic property/cycle structure/cycle performance分类
能源科技引用本文复制引用
王天堃,刘天野,乔加飞,王兵兵,杨震,段远源..超临界二氧化碳混合工质布雷顿循环研究进展[J].发电技术,2025,46(3):617-626,10.基金项目
国家重点研发计划项目(2023YFB4102503) （2023YFB4102503）
国家能源集团2030重大项目先导项目(GJNY2030XDXM-19-10.1).Project Supported by National Key Research and Development Program of China(2023YFB4102503) （GJNY2030XDXM-19-10.1）
2030 Major Pilot Project of CHN Energy(GJNY2030XDXM-19-10.1). （GJNY2030XDXM-19-10.1）
