集成碳捕集的1000MW超超临界燃煤机组热力系统优化与性能研究
Optimization and Performance Study of Thermal System of 1 000 MW Ultra-supercritical Coal-fired Unit Based on Carbon Capture
杨美 1丁源 2程秋洁 1周云龙 1王迪 3李婷1
作者信息
- 1. 东北电力大学能源与动力工程学院,吉林 吉林 132012
- 2. 国能吉林江南热电有限公司,吉林 吉林 132002
- 3. 东北电力大学自动化工程学院,吉林 吉林 132012
- 折叠
摘要
为降低CO2的能耗并且提高发电效率,以超超临界二次再热-碳捕集系统为参考系统,提出了耦合太阳和ORC系统的二次再热-碳捕集优化方案.利用Ebsilon软件构建了优化系统模型,并进行了热力性能、经济性和运行性能分析.结果表明:与参考系统相比,优化系统热效率提高了 4.78%,热耗降低了1005 kJ/(kW·h),煤耗降低了 36.50 g/(kW·h);太阳能辅助系统年运行时间占比为 60%,均省煤量可达到2.0×104 t.优化方案具有更好的热经济性并且减少了发电耗煤量,为CO2捕集和减排提供优化思路.
Abstract
With the purpose of reducing the energy consumption of CO2 and promoting the efficiency of power generation,this paper proposes an optimization scheme of double reheat-carbon capture coupled with solar and ORC systems,using the ultra-supercritical double reheat-carbon capture system as the reference system.In this paper,an optimization scheme of double reheat-carbon capture coupled with solar and ORC systems is proposed.The optimized system model is constructed using Ebsilon software.The thermal performance,economics and operational performance of the system were analyzed.The results of the study showed that the thermal efficiency of the optimized system was increased by 4.78%,and the heat consumption was reduced by 1005 kJ/(kW-h)and coal consumption by 36.50 g/(kW-h)compared to the reference system;the annual operating time of the solar auxiliary system is 60%,and the average coal saving can reach 2.0×104 t.The optimized scheme has better thermal economy and reduced coal consumption for power generation,which provides an optimization idea for CO2 capture and emission reduction.
关键词
碳捕集/热力系统/太阳能/ORC系统/余热利用Key words
carbon capture/thermal systems/solar energy/ORC systems/waste heat utilization引用本文复制引用
基金项目
国家自然科学基金(52306004)
东北电力大学博士科研启动基金(BSJXM-2023104)
出版年
2024
NETL
NSTL
万方数据