DESIGN AND ANALYSIS OF SOLAR AND LNG COLD ENERGY-DRIVEN COOLING-POWER-LIGHT HYDROCARBON POLYGENERATION SYSTEM

Pan Jie; Yu Jingwen; Li Yongge; Tang Feiran; Li Ran

doi:10.19912/j.0254-0096.tynxb.2025-0797

PDF(2523 KB)

Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (9) : 608-619. DOI: 10.19912/j.0254-0096.tynxb.2025-0797

DESIGN AND ANALYSIS OF SOLAR AND LNG COLD ENERGY-DRIVEN COOLING-POWER-LIGHT HYDROCARBON POLYGENERATION SYSTEM

Pan Jie^1,2, Yu Jingwen¹, Li Yongge¹, Tang Feiran³, Li Ran³

Author information +

History +

Abstract

This study combines the complementary advantages of LNG’s stability, continuity, low cooling value, and solar energy’s cleanliness, environmental friendliness, and renewability to construct polygeneration system integrating supercritical CO₂ re-compression Brayton cycle （SCRBC）, a two-stage organic Rankine cycle （ORC）, light hydrocarbon separation （LHS）, and data center cooling （DCC）. The system utilizes dual-tank thermal energy storage （TES） to mitigate solar energy fluctuations and couples LNG cold energy cascade recovery technology to achieve combined cooling, power, and light hydrocarbon production. Multi-objective optimization is performed using NSGA-Ⅱ and MOPSO algorithms, targeting thermal efficiency, exergy efficiency, and net present value （NPV）, with the Pareto optimal solution determined via the technique for order preference by similarity to ideal solution （TOPSIS） decision-making. Results indicate that the system achieves a cold energy utilization rate of 69.73%, with the de-heavy hydrocarbon tower accounting for 57.03% of the exergy destruction. The NPV demonstrates significantly higher sensitivity to the annual interest rate than to electricity prices. Compared with conventional systems, this solution exhibits superior thermodynamic performance and greater economic viability.

Key words

solar energy / liquefied natural gas / light hydrocarbon separation / multi-objective optimization / performance analysis / numerical simulation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Pan Jie, Yu Jingwen, Li Yongge, Tang Feiran, Li Ran. DESIGN AND ANALYSIS OF SOLAR AND LNG COLD ENERGY-DRIVEN COOLING-POWER-LIGHT HYDROCARBON POLYGENERATION SYSTEM[J]. Acta Energiae Solaris Sinica. 2026, 47(9): 608-619 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0797

References

[1] 刘青, 毛世博, 马玉涛, 等. 大型海上风电场双边环形集电系统优化方法[J]. 太阳能学报, 2025, 46(8): 168-175.
Liu Q, Mao S B, Ma Y T, et al.Topology optimization method of bilateral ring collector system for large-scale offshore wind farms[J]. Acta Energiae Solaris Sinica, 2025, 46(8): 168-175.
[2] Pan J, Yu J W, Li Y G, et al.Design and optimization of a solar-LNG cold energy hybrid driven multi-generation system integrating light hydrocarbon separation and supercritical CO₂ recompression Brayton/organic Rankine cycle[J]. Chemical Engineering Research and Design, 2025, 223: 364-382.
[3] Zhang X R, Yamaguchi H, Fujima K, et al.Theoretical analysis of a thermodynamic cycle for power and heat production using supercritical carbon dioxide[J]. Energy, 2007, 32(4): 591-599.
[4] 张楠. 太阳能热互补联合循环发电系统动态性能及运行策略研究[D]. 北京: 华北电力大学, 2021.
Zhang N.Research on dynamic performance and operation strategy of integrated solar combined cycle power generation system[D]. Beijing: North China Electric Power University, 2021.
[5] Stanislawski B J, Egerer U, Dana S, et al.Wind-induced torsion of parabolic trough collectors in operation[J]. Renewable Energy, 2025, 241: 122135.
[6] 张学镭, 梁建雄, 王普, 等. 基于S-CO₂布雷顿循环的太阳能发电储能一体化系统性能分析[J]. 动力工程学报, 2024, 44(8): 1205-1215.
Zhang X L, Liang J X, Wang P, et al.Performance analysis of an integrated solar power generation and storage system based on the S-CO₂ brayton cycle[J]. Journal of Chinese Society of Power Engineering, 2024, 44(8): 1205-1215.
[7] 石洋溢, 李洪强, 张晓烽, 等. 太阳能与LNG冷能耦合发电系统研究[J]. 工程热物理学报, 2015, 36(9): 1879-1883.
Shi Y Y, Li H Q, Zhang X F, et al.Research of power generation system coupled with solar energy and LNG cold energy[J]. Journal of Engineering Thermophysics, 2015, 36(9): 1879-1883.
[8] Sun Z X, Wang J F, Dai Y P, et al.Exergy analysis and optimization of a hydrogen production process by a solar-liquefied natural gas hybrid driven transcritical CO₂ power cycle[J]. International Journal of Hydrogen Energy, 2012, 37(24): 18731-18739.
[9] 许宏宇, 李瑞凡, 许诚, 等. 集成LNG冷能空分的半闭式CO₂循环发电系统热力学分析与优化[J]. 动力工程学报, 2024, 44(8): 1307-1316.
Xu H Y, Li R F, Xu C, et al.Thermodynamic analysis and optimization of semi-closed CO₂ cycle power generation system integrated with LNG cold energy for air separation process[J]. Journal of Chinese Society of Power Engineering, 2024, 44(8): 1307-1316.
[10] Gao T, Lin W S, Gu A Z.Improved processes of light hydrocarbon separation from LNG with its cryogenic energy utilized[J]. Energy Conversion and Management, 2011, 52(6): 2401-2404.
[11] 白宇恒, 田晓龙, 王峰, 等. 利用LNG冷能回收轻烃和BOG的综合工艺系统[J]. 天然气与石油, 2024, 42(1): 48-53.
Bai Y H, Tian X L, Wang F, et al.The integrated process system of utilizing LNG cold energy to recover light hydrocarbons and BOG[J]. Natural Gas and Oil, 2024, 42(1): 48-53.
[12] Zhang R H, Wu C F, Song W, et al.Energy integration of LNG light hydrocarbon recovery and air separation: process design and technic-economic analysis[J]. Energy, 2020, 207: 118328.
[13] Sulzer A G.THERMINOL VP-1 technical data sheet[R]. Winterthur: Sulzer Heat Transfer Fluids.
[14] Wang X, Liu Q, Lei J, et al.Investigation of thermodynamic performances for two-stage recompression supercritical CO₂ Brayton cycle with high temperature thermal energy storage system[J]. Energy Conversion and Management, 2018, 165: 477-487.
[15] Noh Y, Kim J, Kim J, et al.Economic evaluation of BOG management systems with LNG cold energy recovery in LNG import terminals considering quantitative assessment of equipment failures[J]. Applied Thermal Engineering, 2018, 143: 1034-1045.
[16] Meteotest AG.Meteonorm Version 8.0.2[CP]. Bern, Switzerland: Meteotest AG, 2020.
[17] Yang J Z, Li J, Yang Z, et al.Thermodynamic analysis and optimization of a solar organic Rankine cycle operating with stable output[J]. Energy Conversion and Management, 2019, 187: 459-471.
[18] Shin Y, Lee Y P.Design of a boil-off natural gas reliquefaction control system for LNG carriers[J]. Applied Energy, 2009, 86(1): 37-44.
[19] Ebrahimi A, Meratizaman M, Akbarpour Reyhani H, et al.Energetic, exergetic and economic assessment of oxygen production from two columns cryogenic air separation unit[J]. Energy, 2015, 90: 1298-1316.
[20] Chan W, Li H X, 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.
[21] Blanco J, Alarcón D, Sánchez B, et al.Technical comparison of different solar-assisted heat supply systems for a multi-effect seawater distillation unit[C]//ISES Solar World Congress. Gothenburg, Sweden, 2003: 14-19.
[22] Tomków Ł, Cholewiński M.Modelling of a novel power-generating cycle for the utilization of the cold exergy of liquid natural gas with the adjustable parameters of working fluid[J]. Energy Conversion and Management, 2019, 201: 112178.
[23] 傅秦生. 能量系统的热力学分析方法[M]. 西安: 西安交通大学出版社, 2005.
Fu Q S.Thermodynamic analysis method of energy system[M]. Xi’an: Xi’an Jiaotong University Press, 2005.
[24] 朱敏. 利用LNG冷能和BOG的多级联合动力循环发电系统研究[D]. 西安: 西安石油大学, 2022.
Zhu M.Research on multi-stage combined dynamic cycle power generation system using LNG cold energy and BOG[D]. Xi’an: Xi’an Shiyou University, 2022.
[25] Safwat Wilson A, Khalil Bassiouny M.Modeling of heat transfer for flow across tube banks[J]. Chemical Engineering and Processing: Process Intensification, 2000, 39(1): 1-14.
[26] 国家统计局. 中国统计年鉴2023[M]. 北京: 中国统计出版社, 2023.
National Bureau of Statistics of China. China statistical yearbook 2023[M]. Beijing: China Statistics Press, 2023.
[27] Pan J, Li M F, Li R, et al.Design and analysis of LNG cold energy cascade utilization system integrating light hydrocarbon separation, organic Rankine cycle and direct cooling[J]. Applied Thermal Engineering, 2022, 213: 118672.
[28] Pan J, Cao Q H, Li M F, et al.Energy integration of light hydrocarbon separation, LNG cold energy power generation, and BOG combustion: thermo-economic optimization and analysis[J]. Applied Energy, 2024, 356: 122450.
[29] 宁静红, 王宁霞, 王润霞. 基于LNG冷能与太阳能驱动的ORC系统性能分析[J]. 低碳化学与化工, 2023, 48(2): 168-173.
Ning J H, Wang N X, Wang R X.Performance analysis of ORC system based on LNG cold energy and solar energy drive[J]. Low-carbon Chemistry and Chemical Engineering, 2023, 48(2): 168-173.
[30] Bank of China exchange rate, 2024[EB/OL]. https://www.boc.cn/sourcedb/whpj/.