(SuperCO2) Phase transition of supercritical carbon dioxide (CO2) in transonic flows for shaping next-generation turbines

(SuperCO2) 超临界二氧化碳 (CO2) 在跨音速流中的相变，用于塑造下一代涡轮机

• 批准号: EP/X027147/1
• 负责人: Chuang Wen
• 金额: $ 26万
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX027147%2F1
• 关键词: SuperCO2; Phase; transition; supercritical; carbon

Overview and aims of the SuperCO2 project: The supercritical carbon dioxide (sCO2) cycle is a promising power generation technology with the advantages of compactness, efficiency, high safety and environmental friendliness. However, the phase transition of sCO2 near the critical point, one of the salient issues affecting long term operability and reliability of sCO2 systems, is still not fully understood due to the complicated flow behaviour in supercritical-gas-liquid phase transitions accompanied by heat and mass transfer processes. The proposed project aims to reveal the fundamental understanding of the nonequilibrium condensation of sCO2 in transonic flows and potentially promote the development of the next-generation clean, efficient power cycle.Contribution of SuperCO2 project: The proposed project will contribute to the understanding of the nonequilibrium condensation of sCO2 in transonic flows by proposing experimental and numerical studies. This model is able to precisely determine the formation and growth of nanodroplets with heat and mass transfer during the sCO2 phase transition. The proposed project providing a deep understanding of the phase transition of the sCO2 near the critical point, which will not only reduce thermodynamic and aerodynamic losses but also improve the reliability and life of turbine components, goes beyond the state-of-the-art of understanding of the current sCO2 technology. Thus, the sCO2 project shows a breakthrough ambition to potentially promote the development of a new generation of power cycles. More than 4 papers are expected to be published in prestigious peer-reviewed journals. Duo to wide applications of the sCO2 cycles, this unique project will not only be helpful to the European power industry, including the R&D of new power generation technology but also will promote the fundamental research level in related areas, such as supercritical fluid flow and condensation dynamics.

SuperCO2项目的概述和目标：超临界二氧化碳（SCO2）周期是一种有前途的发电技术，具有紧凑，效率，高安全性和环境友好的优势。但是，由于超临界加速器 - 液体相变的复杂流动行为以及伴随着热量和传播过程的复杂流动行为，因此仍未完全理解影响SCO2系统长期可操作性和可靠性的显着问题之一。拟议的项目旨在揭示对跨性能流中SCO2无序凝结的基本理解，并有可能促进下一代清洁，高效的功率周期的发展。SuperCO2项目的贡献：拟议项目将有助于通过预测实验和数值研究中SCO2的无序凝结。该模型能够精确确定在SCO2相变期间，纳米圆形的形成和生长。拟议的项目对临界点附近SCO2的相过渡有深入的了解，这不仅会减少热力学和空气动力学损失，而且还可以提高涡轮机组件的可靠性和寿命，这超出了对当前SCO2技术的最新了解。因此，SCO2项目表明了一个突破性的野心，可以潜在地促进新一代动力周期的发展。预计将在著名的同行评审期刊上发表4篇论文。二人组合SCO2周期的广泛应用，这个独特的项目不仅将对欧洲电力行业有所帮助，包括新的发电技术的研发，还将促进相关领域的基本研究水平，例如超临界流体流量和冷凝动态。

项目成果

High-pressure supersonic carbon dioxide (CO2) separation benefiting carbon capture, utilisation and storage (CCUS) technology

• DOI: 10.1016/j.apenergy.2023.120975
• 发表时间: 2023-03-28
• 期刊: APPLIED ENERGY
• 影响因子: 11.2
• 作者: Ding, Hongbing;Zhang, Yu;Yang, Yan
• 通讯作者: Yang, Yan

Measurement of the Thin Liquid Film at the Wet-Gas Outlet of the Supersonic Separator by FPC Conductance Sensor

• DOI: 10.1109/tim.2023.3273670
• 发表时间: 2023
• 期刊: IEEE Transactions on Instrumentation and Measurement
• 影响因子: 5.6
• 作者: Hongbing Ding;Zheng-Yuan Chen;Hongjun Sun;Yan Yang;Zhenxing Liang;Yu Zhang

Experimental investigation on droplet evolutions in co-flow around the bluff body

• DOI: 10.1016/j.expthermflusci.2023.111106
• 发表时间: 2023-11
• 期刊: Experimental Thermal and Fluid Science
• 影响因子: 3.2
• 作者: Hongbing Ding;Xinyu Song;Jinxia Li;C. Wen;Hongjun Sun;Zhihua Bao;Xixi Liu

Performance of supercritical carbon dioxide (sCO2) centrifugal compressors in the Brayton cycle considering non-equilibrium condensation and exergy efficiency

• DOI: 10.1016/j.enconman.2023.117849
• 发表时间: 2024-01
• 期刊: Energy Conversion and Management
• 影响因子: 10.4
• 作者: Hongbing Ding;Yu-Wei Dong;Yu Zhang;C. Wen;Yan Yang