刘奕宁,颜晓江,王国忠,王可可,王江峰

• 1:国电电力发展股份有限公司
• 2:西安交通大学能源与动力工程学院
• 3:国家能源投资集团有限责任公司

摘要(Abstract)：

为了探索低碳环保的火力发电技术，提高清洁能源利用效率，提出一种耦合清洁热源的Allam循环发电系统。建立了系统中主要设备的热力学模型，通过与参考系统的对比阐释耦合系统的优势及原理，并通过参数分析研究设计参数对耦合系统性能的影响机制。计算结果表明：低品位的清洁热源可以有效解决Allam循环回热器的热量不平衡问题，将循环工质加热到更高的温度，进而提高系统性能。在典型算例下，清洁热源耦合系统的?效率可达54.07%，比参考系统高4.01百分点；耦合系统输出功率和?效率随透平进口温度的升高先升高后降低；随着清洁热源温度和流量的增加，耦合系统输出功率有所增加，?效率先升高后降低。研究成果可以为低碳发电技术提供数据支持和理论支撑。

关键词(KeyWords)： Allam循环;清洁热源;耦合系统;热力学分析;参数分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目（51976147）~~

作者(Author): 刘奕宁,颜晓江,王国忠,王可可,王江峰

DOI: 10.19666/j.rlfd.202304050

参考文献(References)：

• [1]王月明,姚明宇,张一帆,等.煤电的低碳化发展路径研究[J].热力发电, 2022, 51(1):11-20.WANG Yueming, YAO Mingyu, ZHANG Yifan, et al.Study on low-carbon development path of coal-fired power generation[J]. Thermal Power Generation, 2022,51(1):11-20.
• [2]王喜平,唐荣.燃煤电厂碳捕集、利用与封存商业模式与政策激励研究[J].热力发电, 2022, 51(8):29-41.WANG Xiping, TANG Rong. Research on business model and policy incentives for carbon capture, utilization and storage in coal-fired power plants[J]. Thermal Power Generation, 2022, 51(8):29-41.
• [3]刘建华.国内燃煤锅炉富氧燃烧技术进展[J].热力发电, 2020, 49(7):48-54.LIU Jianhua. Research and development of oxy-fuel combustion for coal-fired boiler in China[J]. Thermal Power Generation, 2020, 49(7):48-54.
• [4] ALLAM R, PALMERM, BROWN G, et al. High Efficiency and Low Cost of Electricity Generation from Fossil Fuels While Eliminating Atmospheric Emissions,Including Carbon Dioxide[J]. Energy Procedia, 2013, 37:1135-1149.
• [5] SCACCABAROZZI R, GATTI M, MARTELLI E.Thermodynamic analysis and numerical optimization of the NET power oxy-combustion cycle[J]. Applied Energy,2016, 178:505-526.
• [6] ZHU Z, CHEN Y, WU J, et al. A modified Allam cycle without compressors realizing efficient power generation with peak load shifting and CO2 capture[J]. Energy, 2019,174(5):478-487.
• [7] ZHU Z, CHEN Y, WU J, et al. Performance study on sCO2 power cycle with oxygen fired fuel of s-water gasification of coal[J]. Energy Conversion and Management, 2019, 199:112058.
• [8] MITCHELL C, AVAGYAN V, CHALMERS H, et al. An initial assessment of the value of Allam cycle power plants with liquid oxygen storage in future GB electricity system[J]. International Journal of Greenhouse Gas Control, 2019, 87:1-18.
• [9] HERVAS G, PETRAKOPOULOU F. Exergoeconomic analysis of the Allam cycle[J]. Energy and Fuels, 2019,33:7561-7568.
• [10] CHAN W, LEI X, CHANG F, et al. Thermodynamic analysis and optimization of Allam cycle with a reheating configuration[J]. Energy Conversion and Management,2020, 224:113382.
• [11] CHAN W, LI H, LI X, et al. Exergoeconomic analysis and optimization of the Allam cycle with liquefied natural gas cold exergy utilization[J]. Energy Conversion and Management,2021, 235:113972.
• [12] LI B, WANG S, QIAOJ, et al. Thermodynamic analysis and optimization of a dual-pressure Allam cycle integrated with the regasification of liquefied natural gas[J]. Energy Conversion and Management, 2021, 246:114660.
• [13] NTW A, CWWA B. Techno-economic analysis of an integrated gasification direct-fired supercritical CO2power cycle[J]. Fuel, 2018, 212:613-625.
• [14] ZHAO Y, WANG B, CHI J, et al. Parametric study of a direct-fired supercritical carbon dioxide power cycle coupled to coal gasification process[J]. Energy Conversion and Management, 2018, 156:733-745.
• [15] ZHAO Y, LI F. Thermodynamic analysis of a novel dual expansion coal-fueled direct-fired supercritical carbon dioxide power cycle[J]. Applied Energy, 2018, 2018(5):480-495.
• [16] XIN T, XU C, LIU Y, et al. Thermodynamic analysis of a novel zero carbon emission coal-based polygeneration system incorporating methanol synthesis and Allam power cycle[J]. Energy Conversion and Management,2021, 244:114441.
• [17]李博,王顺森,宋立明. Allam循环-跨临界CO2循环冷电联产系统的热力学分析[J].西安交通大学学报,2021, 55(10):11-18.LI Bo, WANG Shunsen, SONG Limin. A thermodynamic analysis for combined cooling and power systems consisting of Allam cycle and transcritical carbon dioxide cycle[J]. Journal of Xi'an Jiaotong University, 2021,55(10):11-18.
• [18] LI B, WANG S, WANG K, et al. Thermo-economic analysis of a combined cooling, heating and power system based on carbon dioxide power cycle and absorption chiller for waste heat recovery of gas turbine[J]. Energy Conversion and Management, 2020, 224:113372.
• [19] WANG K, WANG S. Thermodynamic analysis of a comprehensive energy utilization system for natural gas pressure reduction stations based on Allam cycle[J].Applied Thermal Engineering, 2022, 205:118033.
• [20] LI B, WANG S. Thermo-economic analysis and optimization of a cascade transcritical carbon dioxide cycle driven by the waste heat of gas turbine and cold energy of liquefied natural gas[J]. Applied Thermal Engineering, 2022, 214:118861.
• [21] HASELI Y, SIFAT N. Performance modeling of Allam cycle integrated with a cryogenic air separation process[J].Computers&Chemical Engineering, 2021, 148:107263.
• [22] SLEITI A, AL-AMMARI W. Energy and exergy analyses of novel supercritical CO2 Brayton cycles driven by direct oxy-fuel combustor[J]. Fuel, 2021, 294:120557.