Allam cycle: Review of research and development

Chan, Wen; Morosuk, Tatiana; Li, Xi; Li, Huixiong

doi:10.1016/j.enconman.2023.117607

Cited by 13 publications

(2 citation statements)

References 74 publications

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“…The Allam cycle is considered one of the most promising power cycles due to its high efficiency, flexibility and economic performance [19].…”

Section: Cycle Definition and Thermodynamic Modelsmentioning

confidence: 99%

The Allam Cycle: A Review of Numerical Modeling Approaches

Reale

2023

Energies

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In recent years supercritical CO2 power plants have seen a growing interest in a wide range of applications (e.g., nuclear, waste heat recovery, solar concentrating plants). The Allam Cycle, also known as the Allam-Fetvedt or NET Power cycle, seems to be one of the most interesting direct-fired sCO2 cycles. It is a semi-closed loop, high-pressure, low-pressure ratio, recuperated, direct-fired with oxy-combustion, trans-critical Brayton cycle. Numerical simulations play a key role in the study of this novel cycle. For this reason, the aim of this review is to offer the reader a wide array of modeling solutions, emphasizing the ones most frequently employed and endeavoring to provide guidance on which choices seem to be deemed most appropriate. Furthermore, the review also focuses on the system’s performance and on the opportunities related to the integration of the Allam cycle with a series of processes, e.g., cold energy storage, LNG regasification, biomass or coal gasification, and ammonia production.

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“…The Allam cycle is considered one of the most promising power cycles due to its high efficiency, flexibility and economic performance [19].…”

Section: Cycle Definition and Thermodynamic Modelsmentioning

confidence: 99%

The Allam Cycle: A Review of Numerical Modeling Approaches

Reale

2023

Energies

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“…These systems involve the use of physical 35–37 or chemical solvent dissolving absorbents, 38 solid absorbents, 39–41 gas separation membranes, 42–45 calcium looping 46,47 and inherent CO 2 trapping. 48 The chemical solvent-based systems are convenient, widely available, easily prepared and well-studied for CCS. Various amines for the chemical solvents have been designed and fabricated to enhance the performance of CO 2 absorption and desorption.…”

Section: Introductionmentioning

confidence: 99%

Utilization of CO₂-captured poly(allylamine) as a polymer surfactant for nanoarchitecture production in a closed CO₂ cycle

Yoshida

2024

RSC Sustain.

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Thermoeconomic analysis of sCO₂ power cycles

Chen,

O'Connell,

Seider

2024

AIChE Journal

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The second‐law analysis evaluates the irreversibilities of a process. Systematic study of the relationship between thermodynamic efficiency and process modifications enhances process synthesis. The Allam cycle is an oxy‐fuel combustion cycle with nearly complete carbon capture that offers greater efficiency than current electricity generating systems. This study applies lost work analysis to the original Allam cycle and three modifications to obtain the distribution of irreversibilities and the effects of different configurations among potential process improvements for more sustainable power generation. The major inefficiencies are from the combustors and heat exchangers. We also examine the economic profitability of the alternatives. The largest equipment costs are for the turbines, compressors, and recuperators. We find that improving efficiency leads to less economic return; a configuration with partial compression has the highest efficiency, while the original Allam cycle has the highest profitability. We discuss how to resolve this apparent conflict between sustainability and profitability.

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Allam cycle: Review of research and development

Cited by 13 publications

References 74 publications

The Allam Cycle: A Review of Numerical Modeling Approaches

The Allam Cycle: A Review of Numerical Modeling Approaches

Utilization of CO₂-captured poly(allylamine) as a polymer surfactant for nanoarchitecture production in a closed CO₂ cycle

Thermoeconomic analysis of sCO₂ power cycles

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Allam cycle: Review of research and development

Cited by 13 publications

References 74 publications

The Allam Cycle: A Review of Numerical Modeling Approaches

The Allam Cycle: A Review of Numerical Modeling Approaches

Utilization of CO2-captured poly(allylamine) as a polymer surfactant for nanoarchitecture production in a closed CO2 cycle

Thermoeconomic analysis of sCO2 power cycles

Contact Info

Product

Resources

About

Utilization of CO₂-captured poly(allylamine) as a polymer surfactant for nanoarchitecture production in a closed CO₂ cycle

Thermoeconomic analysis of sCO₂ power cycles