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    Semi-Closed Oxy-Combustion Combined Cycles for Combined Heat and Power Applications

    Source: Journal of Engineering for Gas Turbines and Power:;2024:;volume( 147 ):;issue: 004::page 41011-1
    Author:
    Zelaschi, Andrea
    ,
    Giostri, Andrea
    ,
    Chiesa, Paolo
    ,
    Martelli, Emanuele
    DOI: 10.1115/1.4066424
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This study focuses on the design and comparison of three utility-scale combined heat and power (CHP) cycles with carbon capture and storage (CCS): (i) a CHP semi-closed oxy-combustion combined cycle (SCOC-CC), (ii) a CHP natural gas combined cycle (NGCC) with postcombustion CCS, and (iii) a CHP NGCC with postcombustion CCS and supplementary firing. Performance evaluations are conducted at the design point and partial load (gas turbine at 30%) for different exports of high-temperature pressurized steam. The comparison is extended against two reference separate production systems with CCS, one based on postcombustion technologies, and another based on oxy-combustion. Simulations of the H-class gas turbines are performed using gas steam (GS), a specific in-house validated software, while the heat recovery steam cycle is modeled using Thermoflex. The CO2 capture processes employ validated models in Aspen Plus. The results highlight the suitability of the SCOC-CC for CHP applications, demonstrating superior performance and flexibility compared to CHP postcombustion technologies at both nominal and minimum loads. The SCOC cycle achieves a maximum first-law efficiency of 65.95%, outperforming CCS technologies that generate electricity and heat separately and enabling fuel savings up to 9.2%.
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      Semi-Closed Oxy-Combustion Combined Cycles for Combined Heat and Power Applications

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    contributor authorZelaschi, Andrea
    contributor authorGiostri, Andrea
    contributor authorChiesa, Paolo
    contributor authorMartelli, Emanuele
    date accessioned2025-04-21T10:36:43Z
    date available2025-04-21T10:36:43Z
    date copyright10/15/2024 12:00:00 AM
    date issued2024
    identifier issn0742-4795
    identifier othergtp_147_04_041011.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4306548
    description abstractThis study focuses on the design and comparison of three utility-scale combined heat and power (CHP) cycles with carbon capture and storage (CCS): (i) a CHP semi-closed oxy-combustion combined cycle (SCOC-CC), (ii) a CHP natural gas combined cycle (NGCC) with postcombustion CCS, and (iii) a CHP NGCC with postcombustion CCS and supplementary firing. Performance evaluations are conducted at the design point and partial load (gas turbine at 30%) for different exports of high-temperature pressurized steam. The comparison is extended against two reference separate production systems with CCS, one based on postcombustion technologies, and another based on oxy-combustion. Simulations of the H-class gas turbines are performed using gas steam (GS), a specific in-house validated software, while the heat recovery steam cycle is modeled using Thermoflex. The CO2 capture processes employ validated models in Aspen Plus. The results highlight the suitability of the SCOC-CC for CHP applications, demonstrating superior performance and flexibility compared to CHP postcombustion technologies at both nominal and minimum loads. The SCOC cycle achieves a maximum first-law efficiency of 65.95%, outperforming CCS technologies that generate electricity and heat separately and enabling fuel savings up to 9.2%.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleSemi-Closed Oxy-Combustion Combined Cycles for Combined Heat and Power Applications
    typeJournal Paper
    journal volume147
    journal issue4
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4066424
    journal fristpage41011-1
    journal lastpage41011-12
    page12
    treeJournal of Engineering for Gas Turbines and Power:;2024:;volume( 147 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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