UKCCSRC Call 2 Project: Investigating the radiative heat flux in small and large scale oxy-coal furnaces for CFD model development and system scale up

Oxy-fuel combustion has been recognised as one of the very competitive technologies for CO2 capture in the power generation sector. Its importance for CCS technology development in the UK is evident from the Government's recent decision to fund the FEED study on White Rose Partnership project. Traditionally furnace design replies on experience based design plots and some modelling analysis. High concentration of CO2 in oxy-fuel combustion leads to a substantial change in the radiation property of the furnace and therefore CFD modelling is becoming a critical predictive and design tool. The main aims of this project are to collect a comprehensive and much needed set of data for radiation model development by measuring experimentally the combustion and heat transfer properties, including direct radiative heat flux measurements and other combustion processes, in the state-of-the-art 250kW PACT oxy-combustion test facilities and the 35MW large scale oxy-combustion plant at HUST in China. The data will then be used to develop further and validate the next generation Full-Spectrum Correlated k distributions (FSCK) model that is currently under development at Leeds. The developed and validated CFD models may then be employed with more confidence to predict, analyse and optimise the operation of future full scale CCS plant for system scale up. Grant number: UKCCSRC-C2-193.富氧燃烧（oxy-fuel combustion）已被公认为发电领域极具竞争力的二氧化碳捕集技术之一。英国政府近期决定为"白玫瑰合作项目"的基础工程设计（Front End Engineering Design, FEED）研究提供资助，足见其对英国碳捕集与封存（Carbon Capture and Storage, CCS）技术发展的重要意义。 传统炉膛设计依赖于经验性设计图表与部分建模分析，而富氧燃烧环境下高浓度的二氧化碳会使炉膛的辐射特性发生显著变化，因此计算流体动力学（Computational Fluid Dynamics, CFD）建模正成为关键的预测与设计工具。 本项目的核心目标是采集一套全面且亟需的辐射模型开发数据集：通过实验测量中国华中科技大学（Huazhong University of Science and Technology, HUST）内的先进250kW PACT富氧燃烧试验设施与35MW大型富氧燃烧电厂的燃烧与传热特性，其中包括直接辐射热通量测量及其他燃烧过程参数。 后续将利用该数据集进一步开发并验证利兹大学（University of Leeds）当前正在研发的下一代全光谱相关k分布（Full-Spectrum Correlated k distributions, FSCK）模型。经开发与验证后的计算流体动力学模型可更具可信度地预测、分析并优化未来规模化碳捕集与封存电站的运行，助力系统规模放大。 项目编号：UKCCSRC-C2-193。