Performance analysis and multi-objective optimization of an integrated gas turbine/supercritical CO2 recompression/transcritial CO2 cogeneration system using liquefied natural gas cold energy

Su, Ruizhi; Yu, Zeting; Xia, Lei; Sun, Jianan

doi:10.1016/j.enconman.2020.113136

Cited by 62 publications

(6 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Air compressor (AC) [26,33] Z AC = 7900 (P AC ) 0.62 Air turbine (AT) [26,33] Z AT = 1100 (P AT ) 0.81 Cryo-turbine (CT) [26,33] Z CT = 1100(P CT ) 0.81 Inter-cooler (IC) [6] Z IC = 12, 000(A IC /100) 0.6 Condenser (CON) [6] Z CON = 32, 800(A CON /80) 0.68 Evaporator (EVA) [6] Z EVA = 32, 800(A EVA /80) 0.68 Re-heater (RH) [6] Z RH = 12, 000(A RH /100) 0.6 Superheater (SH) [6] Z SH = 12, 000(A SH /100) 0.6 Liquid air tank (LAT) [6] Z LAT = 320 × V LAT Liquid methanol tank (LMT) [33] Z LMT = 572 × V LMT Liquid propane tank (LPT) [33] Z LPT = 1326 × V LPT Liquid thermal oil tank (LOT) [33] Z LOT = 423 × V LOT Liquid air pump (LAP) [33] Z LAP = 483P LAP LNG pump (LNGP) [28] Z LNGP = 1120 (P LNGP ) 0.8 Combustion chamber (CRV) [34] Z CRV = 25.65•m CRV 0.995−p CRV,out /p CRV,in 1 + e (0.018•T CRV,out −26.4) Flue gas turbine (GT) [34] Z GT = 1100 (P GT ) 0.81 Air throttle valve (ATV) [6] Z ATV = 114.5 (m ATV ) 0.67 Separator (SEP) [6] Z SEP = 114.5 (m SEP ) 0.67 Table 3. Investment cost models for the materials.…”

Section: Equipment Model (Usd)mentioning

confidence: 99%

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

Qin,

Tan,

Wen

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

Liquid air energy storage (LAES) technology is helpful for large-scale electrical energy storage (EES), but faces the challenge of insufficient peak power output. To address this issue, this study proposed an efficient and green system integrating LAES, a natural gas power plant (NGPP), and carbon capture. The research explores whether the integration design is theoretically feasible for future adoption in operating the LAES system and NGPP. The effect of the charging pressure, the number of air expansion stages, and electricity prices on the overall thermodynamic and economic characteristics are investigated. The round-trip efficiency and the exergy round-trip efficiency of the proposed system are 47.72% and 69.74%, respectively. The calculations show that the minimum dynamic payback period for such a project is 3.72 years, and the lowest levelized cost of electricity is 0.0802 USD·kWh−1. This work provides a reference for peak-shaving power stations with energy storage and carbon capture.

show abstract

Section: Equipment Model (Usd)mentioning

confidence: 99%

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

Qin,

Tan,

Wen

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…For high-temperature heat sources, a sCO 2 cycle can be integrated with a tCO 2 cycle. Su et al (Su et al, 2020) designed such a sCO 2 -tCO 2 combined system for the waste heat recovery of a gas turbine. The heat sink was an LNG.…”

Section: Combined Power Cyclementioning

confidence: 99%

System Design and Application of Supercritical and Transcritical CO2 Power Cycles: A Review

2021

View full text Add to dashboard Cite

Improving energy efficiency and reducing carbon emissions are crucial for the technological advancement of power systems. Various carbon dioxide (CO2) power cycles have been proposed for various applications. For high-temperature heat sources, the CO2 power system is more efficient than the ultra-supercritical steam Rankine cycle. As a working fluid, CO2 exhibits environmentally friendly properties. CO2 can be used as an alternative to organic working fluids in small- and medium-sized power systems for low-grade heat sources. In this paper, the main configurations and performance characteristics of CO2 power systems are reviewed. Furthermore, recent system improvements of CO2 power cycles, including supercritical Brayton cycles and transcritical Rankine cycles, are presented. Applications of combined systems and their economic performance are discussed. Finally, the challenges and potential future developments of CO2 power cycles are discussed. CO2 power cycles have their advantages in various applications. As working fluids must exhibit environmentally-friendly properties, CO2 power cycles provide an alternative for power generation, especially for low-grade heat sources.

show abstract

“…[ 1 ] The cryogenic power generation cycle has been considered one of the most preferred methods and has received extensive attention. Su et al [ 16 ] proposed a novel power/cooling cogeneration system driven by LNG cold energy, which consists of a transcritical CO 2 power system, a supercritical CO 2 recompression power system, and a gas turbine. The thermodynamic analysis showed that the combined exergy efficiency and the combined thermal efficiency can reach 30.27% and 52.94%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Thermoeconomic Analysis and Optimization of a Combined Supercritical CO₂ Recompression Brayton/Kalina Cycle Driven by Boil‐Off Gas Combustion and Liquefied Natural Gas Cold Energy

Pan

Zhu

et al. 2023

Energy Tech

View full text Add to dashboard Cite

The energy and costs required to reliquefy the boil‐off gas (BOG) produced in liquefied natural gas (LNG) tanks are enormous. At the same time, LNG releases large amounts of cold energy during the regasification process. To recover both the BOG and the LNG cold energy for power generation, herein, a novel system consisting of a supercritical carbon dioxide recompression Brayton cycle, an ammonia–water mixture Kalina cycle, a BOG combustion turbine cycle, and a natural gas turbine cycle is presented. The genetic algorithm with multiple elite saving is used to optimize the system thermoeconomic performance, and the maximum energy efficiency, exergy efficiency, and net present value of 65.49%, 33.88%, and 7.374 × 107 $ are obtained respectively. The nondominated sorting genetic algorithm II is implemented to achieve the multiobjective optimization, and the comprehensive performance analysis is carried out on this basis. The results show that heat exchangers and turbines account for the highest exergy destruction and total cost proportion with the value of 76.5% and 81.1% respectively. The heat transfer curves between LNG and working fluids are well matched, and the cooling capacity for ammonia liquefaction is the largest, accounting for 66.66%, which also generates 581.2 kW of power generation. The results also indicate that the LNG cold energy cascade utilization system combined with BOG combustion has excellent thermodynamic performance and can obtain ideal economic benefits.

show abstract

Performance analysis and multi-objective optimization of an integrated gas turbine/supercritical CO2 recompression/transcritial CO2 cogeneration system using liquefied natural gas cold energy

Cited by 62 publications

References 63 publications

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

System Design and Application of Supercritical and Transcritical CO2 Power Cycles: A Review

Thermoeconomic Analysis and Optimization of a Combined Supercritical CO₂ Recompression Brayton/Kalina Cycle Driven by Boil‐Off Gas Combustion and Liquefied Natural Gas Cold Energy

Contact Info

Product

Resources

About

Performance analysis and multi-objective optimization of an integrated gas turbine/supercritical CO2 recompression/transcritial CO2 cogeneration system using liquefied natural gas cold energy

Cited by 62 publications

References 63 publications

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

System Design and Application of Supercritical and Transcritical CO2 Power Cycles: A Review

Thermoeconomic Analysis and Optimization of a Combined Supercritical CO2 Recompression Brayton/Kalina Cycle Driven by Boil‐Off Gas Combustion and Liquefied Natural Gas Cold Energy

Contact Info

Product

Resources

About

Thermoeconomic Analysis and Optimization of a Combined Supercritical CO₂ Recompression Brayton/Kalina Cycle Driven by Boil‐Off Gas Combustion and Liquefied Natural Gas Cold Energy