Thermo-economic analysis of combined transcritical CO2 power cycle based on a novel liquefied-biomethane energy storage system

Pan, Chuhan; Lu, Fulu; Zhu, Hehua; Pan, Fanghui; Sun, Jie

doi:10.1016/j.applthermaleng.2022.119922

Cited by 8 publications

(2 citation statements)

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“…Along with LNG, other liquefied gases have also been coupled with CO 2 cycles. Pan et al 29 combined a transcritical CO 2 power cycle based on a novel liquefied‐biomethane for application in an energy storage system. By applying thermoeconomic and sensitivity analyses, they reported a levelized cost of electricity at 0.106 $/kWh, a maximum energy storage density of 106.8 Wh/L, and a round‐trip efficiency of 52.7%.…”

Section: Introductionmentioning

confidence: 99%

A 3E analysis of a multi‐power generation system employing CO₂, LNG, and Organic Rankine cycles

Dadpour,

Deymi‐Dashtebayaz,

Delpisheh

et al. 2024

Env Prog and Sustain Energy

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One avenue in increasing the energy efficiency of energy systems is through utilizing the thermal energy of flue gases of industrial plants. On this thread, herein, a novel combined cascade cycle for heat recovery of flue gases of an industrial plant is proposed comprising of an organic Rankine cycle (ORC), high‐pressure transcritical CO2 cycle, transcritical CO2 cycle, and a liquefied natural gas (LNG) regasification cycle. System analysis is conducted using energy, exergy, and eco‐exergy equations. The optimization is carried out using the TOPSIS multi‐objective method. Exergy efficiency, net output work, and cost are identified as the optimization objectives. The optimization process focused on fine‐tuning variables including the vapor generator pinch point temperature, ORC turbine inlet pressure, ORC condenser pressure, and ORC condenser pinch point temperature, with optimal values gauged at 19.31°C, 29.59 bar, 1.413 bar, and 14.52°C, respectively. The preheater had the largest exergy destruction share, followed by the heat exchanger unit. The analysis showed that the ORC condenser pressure and temperature difference between two working fluids in the heat exchanger were the most critical parameters in the proposed cycle, significantly affecting the system performance. Accordingly, the exergy efficiency, net output work, and cost values in the optimal state were equal to 15.2%, 6416 kW, and 0.7457 $/s, respectively. The advantages of the proposed system include efficient heat recovery through the coupling of the multiple cycles and enhanced energy conversion pertinent to a wider range of temperatures, maximizing the overall energy extraction from the waste heat.

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Section: Introductionmentioning

confidence: 99%

A 3E analysis of a multi‐power generation system employing CO₂, LNG, and Organic Rankine cycles

Dadpour,

Deymi‐Dashtebayaz,

Delpisheh

et al. 2024

Env Prog and Sustain Energy

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“…For the purpose of achieving a flexible and economical energy storage, a transcritical energy cycle study combining CO 2 was added to biomethane plants to form a liquefied biomethane storage system [22].…”

Section: Introductionmentioning

confidence: 99%

Bibliometric Analysis of Renewable Natural Gas (Biomethane) and Overview of Application in Brazil

Machado,

Ávila,

de Carvalho

2024

Energies

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In view of the increasing demand for clean energy and the growing awareness of environmental sustainability, a bibliometric study examines the various facets of renewable natural gas (biomethane). Sustainable fuels are gaining importance as an alternative to fossil fuels because they are renewable and can reduce greenhouse gas emissions. In addition, an overview of the use of biomethane was compiled for Brazil. The country was chosen because it is the authors’ home country. These emerging energy sources have the potential to play a critical role in the transition to a cleaner, more sustainable and cost-effective energy landscape, thereby reducing environmental impact and strengthening the resilience of our energy future.

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Thermodynamic, economic analysis and multi-objective optimization of an improved self-condensing transcritical CO2 Rankine cycle with two-stage ejector for low grade heat utilization

Xia,

Wang,

Lou

et al. 2024

Energy Conversion and Management

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Thermo-economic analysis of combined transcritical CO2 power cycle based on a novel liquefied-biomethane energy storage system

Cited by 8 publications

References 61 publications

A 3E analysis of a multi‐power generation system employing CO₂, LNG, and Organic Rankine cycles

A 3E analysis of a multi‐power generation system employing CO₂, LNG, and Organic Rankine cycles

Bibliometric Analysis of Renewable Natural Gas (Biomethane) and Overview of Application in Brazil

Thermodynamic, economic analysis and multi-objective optimization of an improved self-condensing transcritical CO2 Rankine cycle with two-stage ejector for low grade heat utilization

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Thermo-economic analysis of combined transcritical CO2 power cycle based on a novel liquefied-biomethane energy storage system

Cited by 8 publications

References 61 publications

A 3E analysis of a multi‐power generation system employing CO2, LNG, and Organic Rankine cycles

A 3E analysis of a multi‐power generation system employing CO2, LNG, and Organic Rankine cycles

Bibliometric Analysis of Renewable Natural Gas (Biomethane) and Overview of Application in Brazil

Thermodynamic, economic analysis and multi-objective optimization of an improved self-condensing transcritical CO2 Rankine cycle with two-stage ejector for low grade heat utilization

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A 3E analysis of a multi‐power generation system employing CO₂, LNG, and Organic Rankine cycles

A 3E analysis of a multi‐power generation system employing CO₂, LNG, and Organic Rankine cycles