SIMULATION METHODOLOGY AND THERMODYNAMICPERFORMANCE ANALYSIS OF REGENERATIVE SOLARTRANSCRITICAL CO2 RANKINE CYCLE

Meng Jia; Hao Ling; Liu Yongxin

doi:10.19912/j.0254-0096.tynxb.2025-0488

PDF(1583 KB)

Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 544-554. DOI: 10.19912/j.0254-0096.tynxb.2025-0488

SIMULATION METHODOLOGY AND THERMODYNAMICPERFORMANCE ANALYSIS OF REGENERATIVE SOLARTRANSCRITICAL CO₂ RANKINE CYCLE

Meng Jia¹, Hao Ling^2,3, Liu Yongxin¹

Author information +

History +

Abstract

In this paper, we propose a simulation method for a regenerative solar transcritical Rankine cycle power generation system with a Fresnel collector, and analyse the system configuration and thermal efficiency influencing factors. The results show that when the with area is in the range of 30-50 m², the performance of the system without regeneration is better. In the range of 50-70 m², the internal regeneration system performs better. When the irradiation intensity was increased from 400 W/m² to 1000 W/m², the output work, thermal efficiency and exergy efficiency of the internal reheat system were improved by 3.8 kW, 5.58 and 5.6 percentage points, respectively. The system output power as well as the thermal and efficiencies decreased with the increase of solar incidence angle and the increase of CO₂mass flow rate. The optimum performance of the internal regenerative system is achieved at a solar incidence angle of 0° and a CO₂ mass flow rate of 0.08 kg/s.

Key words

solar transcritical Rankine cycle / Fresnel collector / regeneration / system power output / thermal efficiency / exergy efficiency

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Meng Jia, Hao Ling, Liu Yongxin. SIMULATION METHODOLOGY AND THERMODYNAMICPERFORMANCE ANALYSIS OF REGENERATIVE SOLARTRANSCRITICAL CO₂ RANKINE CYCLE[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 544-554 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0488

References

[1] 杨俊兰, 李梦希, 韩一飞, 等. 新型槽式太阳能耦合CO₂跨临界朗肯循环发电系统性能研究[J]. 太阳能学报, 2025, 46(2): 488-495.
Yang J L, Li M X, Han Y F, et al.Performance study of novel through solar concentrator coupled CO₂ transcritical Rankine cycle power generation systems[J]. Acta Energiae Solaris Sinica, 2025, 46(2): 488-495.
[2] Li C, Tao Y B, Li S, et al.Performance optimization of high-temperature supercritical carbon dioxide concentrating solar power plant with an improved solar receiver[J]. Energy Conversion and Management, 2025, 336: 119883.
[3] 马丕胤, 柴俊霖, 杨富斌, 等. 太阳能驱动有机朗肯循环热经济性优化[J]. 太阳能学报, 2024, 45(10): 381-390.
Ma P Y, Chai J L, Yang F B, et al.Thermo-economic optimization of solar-driven organic Rankine cycle[J]. Acta Energiae Solaris Sinica, 2024, 45(10): 381-390.
[4] Rafika Maali T K. Energy and exergy optimization of a combined solar/geothermal organic Rankine cycle power plant[J]. Journal of Central South University, 2023, 30(11): 3601-3616.
[5] 何雅玲, 李梦杰, 郭嘉琪, 等. 二氧化碳热力循环在新型能源系统应用中的研究现状与发展趋势[J]. 科学通报, 2025, 70(7): 872-887.
He Y L, Li M J, Guo J Q, et al.Advances and development trend of carbon dioxide thermodynamic cycles applied in novel energy systems[J]. Chinese Science Bulletin, 2025, 70(7): 872-887.
[6] Ehsan M M, Guan Z Q, GURGENCI H, et al.Feasibility of dry cooling in supercritical CO₂ power cycle in concentrated solar power application: review and a case study[J]. Renewable and Sustainable Energy Reviews, 2020, 132: 110055.
[7] 魏占海. 基于超临界CO₂朗肯循环的太阳能光热发电系统分析[J]. 节能, 2022, 41(9): 17-21.
Wei Z H.Analysis of solar thermal power generation system based on supercritical CO₂ Rankine cycle[J]. Energy Conservation, 2022, 41(9): 17-21.
[8] Ahmadi A, Ehyaei M A, Doustgani A, et al.Recent residential applications of low-temperature solar collector[J]. Journal of Cleaner Production, 2021, 279: 123549.
[9] 赵力, 王晓东, 张启. 非共沸工质用于太阳能低温朗肯循环的理论研究[J]. 太阳能学报, 2009, 30(6): 738-743.
Zhao L, Wang X D, Zhang Q.Analysis of zeotropic mixtures used in low temperature solar Rankine cycle system[J]. Acta Energiae Solaris Sinica, 2009, 30(6): 738-743.
[10] 高建强, 孙鑫, 曲振肖, 等. 太阳能超临界有机朗肯循环的工质选择和性能分析[J]. 太阳能学报, 2015, 36(8): 2002-2007.
Gao J Q, Sun X, Qu Z X, et al.Selection of working fluid and performance analysis of solar supercritical organic Rankine cycle[J]. Acta Energiae Solaris Sinica, 2015, 36(8): 2002-2007.
[11] Cheng Z D, He Y L, CuI F Q, et al. Numerical simulation of a parabolic trough solar collector with nonuniform solar flux conditions by coupling FVM and MCRT method[J]. Solar Energy, 2012, 86(6): 1770-1784.
[12] Ekramian E, Etemad S G, Haghshenasfard M.Numerical analysis of heat transfer performance of flat plate solar collectors[J]. Journal of Fluid Flow, Heat and Mass Transfer, 2014, 1: 38-42.
[13] Mohammadkhani F, Yari M.A 0D model for diesel engine simulation and employing a transcritical dual loop Organic Rankine cycle (ORC) for waste heat recovery from its exhaust and coolant: thermodynamic and economic analysis[J]. Applied Thermal Engineering, 2019, 150: 329-347.
[14] Mehrpooya M, Dehqani M, Ali M S, et al. Heat transfer and economic analyses of using various nanofluids in shell and tube heat exchangers for the cogeneration and solar-driven organic Rankine cycle systems[J]. International Journal of Low-Carbon Technologies, 2021, 1710.1093: 11-22.
[15] Marinheiro M M, CoraçA G M, Cabezas-GóMez L, et al. Detailed transient assessment of a small-scale concentrated solar power plant based on the organic Rankine cycle[J]. Applied Thermal Engineering, 2022, 204: 117959.
[16] Zhao B C, Cheng M S, Liu C, et al.System-level performance optimization of molten-salt packed-bed thermal energy storage for concentrating solar power[J]. Applied Energy, 2018, 226: 225-239.
[17] Bellos E, Tzivanidis C.Multi-objective optimization of a solar assisted heat pump-driven by hybrid PV[J]. Applied Thermal Engineering, 2019, 149: 528-535.
[18] Moctezuma-Hernandez J A, MERCHÁN R P, ROCO J M M. Supercritical CO₂ hybrid Brayton-organic Rankine cycle integrated with a solar central tower particle receiver: performance, exergy analysis, and choice of the organic refrigerant[J]. Renewable Energy, 2025, 250: 123231.
[19] Abdelghafar M M, Hassan M A, Kayed H.Direct integration of supercritical carbon dioxide-based concentrated solar power systems and gas power cycles: advances and outlook[J]. Applied Thermal Engineering, 2025, 269: 126064.
[20] 杜明阳. 基于塔式光热电站的超临界CO₂布雷顿循环的参数结构优化[D]. 北京: 华北电力大学, 2024.
Du M Y.Parameter and structure optimization of supercritical CO₂ brayton cycle based on solar thermal power tower[D]. Beijing: North China Electric Power University, 2024.
[21] 耿直, 曾庆仪, 蒋东翔, 等. 基于Ebsilon的槽式光热发电回热循环性能分析[J]. 热科学与技术, 2022, 21(4): 364-372.
Geng Z, Zeng Q Y, Jiang D X, et al.Performance analysis of regeneration cycle of trough CSP based on Ebsilon[J]. Journal of Thermal Science and Technology, 2022, 21(4): 364-372.
[22] 杜永安, 史影甲, 曹野. 塔式太阳能光热发电汽轮机回热系统配置分析[J]. 吉林电力, 2025, 53(1): 1-4.
Du Y A, Shi Y J, Cao Y.Configuration analysis of tower solar thermal power generation turbine reheating system[J]. Jilin Electric Power, 2025, 53(1): 1-4.
[23] Meng J, Song P P, Wei M S, et al.Experimental study of a micro-scale solar organic Rankine cycle system based on compound cylindrical Fresnel lens solar concentrator[J]. Science China Technological Sciences, 2019, 62(12): 2184-2194.
[24] Ma X L, Zheng H F, Liu S L.Optimization on a cylindrical Fresnel lens and its validation in a medium-temperature solar steam generation system[J]. Renewable Energy, 2019, 134: 1332-1343.
[25] 景步云, 谷波, 黎远光. 板式蒸发器仿真计算模型[J]. 系统仿真学报, 2003, 15(10): 1481-1483.
Jing B Y, Gu B, Li Y G.Simulation on the performance of plate evaporator[J]. journal of System Simulation, 2003, 15(10): 1481-1483.
[26] 倪晓华, 夏清, 萧渊, 等. 板式换热器中两相区的换热计算[C]//上海市制冷学会.上海市制冷学会 2001 年学术年会论文集.上海, 2001: 191-194.
Ni X H, Xia Q, Xiao Y, et al.Calculations of heat transfer of two-phase flow in plate heat exchangers[C]//Shanghai Refrigeration Society. Proceedings of the 2001 Academic Annual Conference of Shanghai Refrigeration Society.Shanghai, 2001: 191-194.
[27] Cavallini A, Zecchin R.A dimensionless correlation for heat transfer in forced convection condensation[C]//Proceeding of International Heat Transfer Conference 5. Tokyo, Japan, 1974: 309-313.
[28] 孟佳. 微小型太阳能朗肯循环及其压缩空气储能系统性能研究[D]. 北京: 北京理工大学, 2020.
Meng J.Investigations on micro-scale solar Rankine cycle and compressed air energy strorage system[D]. Beijing: Beijing Institute of Technology, 2020.
[29] Pioro I L, Khartabil H F, Duffey R B.Heat transfer to supercritical fluids flowing in channels: empirical correlations (survey)[J]. Nuclear Engineering and Design, 2004, 230(1-3): 69-91.
[30] GarcíA-Cascales J R, Vera-GarcíA F, CorberáN-Salvador J M, et al. Assessment of boiling and condensation heat transfer correlations in the modelling of plate heat exchangers[J]. International Journal of Refrigeration, 2007, 30(6): 1029-1041.
[31] Meng J, Wei M S, Song P P, et al.Performance evaluation of a solar transcritical carbon dioxide Rankine cycle integrated with compressed air energy storage[J]. Energy Conversion and Management, 2020, 215: 112931.