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Exergoeconomic analysis applied to supercritical CO2 power systems

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  • Noaman, Mohamed
  • Saade, George
  • Morosuk, Tatiana
  • Tsatsaronis, George

Abstract

Different sCO2 cycle concepts together with a newly proposed cycle configuration were simulated and a comparison was conducted to show the advantages and disadvantages of each cycle considered here. The cycles were compared using a wide range of the turbine inlet temperature, while alternating the used cooling system (air vs. wet cooling systems). The thermodynamic and cost inefficiencies within the simulated cycles were identified using exergoeconomic evaluation methods. The high exergy destruction costs in coolers indicate that the investment cost should be reduced by using different material than titanium due to its high cost. Also, the calculated product cost demonstrates a potential advantage of the proposed cycle. The analysis showed, in general, that sCO2-based cycles are promising for various applications, resulting in system efficiencies and costs that could compete with conventional power generation technologies soon. The sCO2 recompression concept and the novel sCO2 cycle showed the best results among all investigated sCO2 cycles.

Suggested Citation

  • Noaman, Mohamed & Saade, George & Morosuk, Tatiana & Tsatsaronis, George, 2019. "Exergoeconomic analysis applied to supercritical CO2 power systems," Energy, Elsevier, vol. 183(C), pages 756-765.
    • Handle: RePEc:eee:energy:v:183:y:2019:i:c:p:756-765
    DOI: 10.1016/j.energy.2019.06.161
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    References listed on IDEAS

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    1. Iverson, Brian D. & Conboy, Thomas M. & Pasch, James J. & Kruizenga, Alan M., 2013. "Supercritical CO2 Brayton cycles for solar-thermal energy," Applied Energy, Elsevier, vol. 111(C), pages 957-970.
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    1. Guelpa, Elisa & Verda, Vittorio, 2020. "Exergoeconomic analysis for the design improvement of supercritical CO2 cycle in concentrated solar plant," Energy, Elsevier, vol. 206(C).
    2. Sadeghi, Mohsen & Seyed Mahmoudi, Seyed Mohammad & Rosen, Marc A., 2022. "Thermoeconomic analysis of two solid oxide fuel cell based cogeneration plants integrated with simple or modified supercritical CO2 Brayton cycles: A comparative study," Energy, Elsevier, vol. 259(C).
    3. Min Xie & Jian Cheng & Xiaohan Ren & Shuo Wang & Pengcheng Che & Chunwei Zhang, 2022. "System Performance Analyses of Supercritical CO 2 Brayton Cycle for Sodium-Cooled Fast Reactor," Energies, MDPI, vol. 15(10), pages 1-19, May.

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