Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions
<p dir="ltr">This study presents comprehensive energetic, exergetic, exergoeconomic, and economic (4E) performance analyses for four direct oxy‐combustion (DOC) supercritical carbon dioxide (sCO2) power cycles at design, off‐design, and part‐load conditions. These cycles include the...
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| مؤلفون آخرون: | |
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2022
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| _version_ | 1864513548751732736 |
|---|---|
| author | Wahib A. Al‐Ammari (18877408) |
| author2 | Ahmad K. Sleiti (14778229) |
| author2_role | author |
| author_facet | Wahib A. Al‐Ammari (18877408) Ahmad K. Sleiti (14778229) |
| author_role | author |
| dc.creator.none.fl_str_mv | Wahib A. Al‐Ammari (18877408) Ahmad K. Sleiti (14778229) |
| dc.date.none.fl_str_mv | 2022-02-11T12:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1002/ese3.1101 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Comprehensive_thermoeconomic_exergoeconomic_and_optimization_analyses_of_direct_oxy_combustion_supercritical_CO_sub_2_sub_intercooled_and_reheated_cycles_under_design_and_off_design_conditions/29045105 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Engineering practice and education Mechanical engineering Direct oxy-combustion (DOC) Energetic and exergetic analysis Exergoeconomic analysis Thermal efficiency Part-load performance Power generation |
| dc.title.none.fl_str_mv | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">This study presents comprehensive energetic, exergetic, exergoeconomic, and economic (4E) performance analyses for four direct oxy‐combustion (DOC) supercritical carbon dioxide (sCO2) power cycles at design, off‐design, and part‐load conditions. These cycles include the dual recuperator cycle (DRC), intercooling cycle (ICC), partial intercooling cycle (PIC), and reheating cycle (RHC). The analyses were conducted at relatively low turbine inlet temperatures (TIT: 550–750°C) with compressor inlet temperature (CIT) varied from 33°C (wet‐cooling) to 50°C (dry‐cooling). Furthermore, single‐ and multiobjective optimization analyses were conducted for each cycle. At design conditions (high‐pressure of <i>P</i><sub>c,o</sub> = 20 MPa, low‐pressure of <i>P</i><sub>c,o</sub> = 5.4 MPa, TIT = 750°C, CIT = 50°C [dry‐cooling]), the PIC has the highest thermal efficiency (47.78%) compared to 38.36% for DRC, 45.71% for ICC, and 44.39% for RHC. At optimized conditions (<i>P</i><sub>c,o</sub> = 30 MPa, Pc,o = 8 MPa, TIT = 744°C, CIT = 30°C [wet‐cooling]), the ICC shows superior energetic performance (52.08%) compared to 47.97% for DRC, 49.20% for PIC, and 48.62% for RHC. At off‐design conditions with a power demand (PD) of 40% of the design load (50 MW), the thermal efficiency is decreased by 21.82% in DRC, 17.71% in ICC, 22.46% in PIC, and 13.60% in RHC. The ICC has the minimum levelized cost of electricity compared to the other cycles with 5.93 ¢/kWh at design conditions (dry‐cooling), 5.65 ¢/kWh at optimized conditions (wet‐cooling), and 7.2 ¢/kWh at minimum PD (21 MW). Therefore, from an economic point of view, the ICC is recommended as the best power block for a sCO<sub>2</sub> power cycle driven by oxy‐combustor at moderate TITs. The study also provides constructive comparisons between the DOC‐sCO<sub>2 </sub>and indirect (nuclear, solar, and waste heat) sCO<sub>2 </sub>power cycle systems and the future research directions.</p><h2>Other Information</h2><p dir="ltr">Published in: Energy Science & Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1002/ese3.1101" target="_blank">https://dx.doi.org/10.1002/ese3.1101</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_f8cece015d7516e43c4b69f47a55628e |
| identifier_str_mv | 10.1002/ese3.1101 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/29045105 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditionsWahib A. Al‐Ammari (18877408)Ahmad K. Sleiti (14778229)EngineeringEngineering practice and educationMechanical engineeringDirect oxy-combustion (DOC)Energetic and exergetic analysisExergoeconomic analysisThermal efficiencyPart-load performancePower generation<p dir="ltr">This study presents comprehensive energetic, exergetic, exergoeconomic, and economic (4E) performance analyses for four direct oxy‐combustion (DOC) supercritical carbon dioxide (sCO2) power cycles at design, off‐design, and part‐load conditions. These cycles include the dual recuperator cycle (DRC), intercooling cycle (ICC), partial intercooling cycle (PIC), and reheating cycle (RHC). The analyses were conducted at relatively low turbine inlet temperatures (TIT: 550–750°C) with compressor inlet temperature (CIT) varied from 33°C (wet‐cooling) to 50°C (dry‐cooling). Furthermore, single‐ and multiobjective optimization analyses were conducted for each cycle. At design conditions (high‐pressure of <i>P</i><sub>c,o</sub> = 20 MPa, low‐pressure of <i>P</i><sub>c,o</sub> = 5.4 MPa, TIT = 750°C, CIT = 50°C [dry‐cooling]), the PIC has the highest thermal efficiency (47.78%) compared to 38.36% for DRC, 45.71% for ICC, and 44.39% for RHC. At optimized conditions (<i>P</i><sub>c,o</sub> = 30 MPa, Pc,o = 8 MPa, TIT = 744°C, CIT = 30°C [wet‐cooling]), the ICC shows superior energetic performance (52.08%) compared to 47.97% for DRC, 49.20% for PIC, and 48.62% for RHC. At off‐design conditions with a power demand (PD) of 40% of the design load (50 MW), the thermal efficiency is decreased by 21.82% in DRC, 17.71% in ICC, 22.46% in PIC, and 13.60% in RHC. The ICC has the minimum levelized cost of electricity compared to the other cycles with 5.93 ¢/kWh at design conditions (dry‐cooling), 5.65 ¢/kWh at optimized conditions (wet‐cooling), and 7.2 ¢/kWh at minimum PD (21 MW). Therefore, from an economic point of view, the ICC is recommended as the best power block for a sCO<sub>2</sub> power cycle driven by oxy‐combustor at moderate TITs. The study also provides constructive comparisons between the DOC‐sCO<sub>2 </sub>and indirect (nuclear, solar, and waste heat) sCO<sub>2 </sub>power cycle systems and the future research directions.</p><h2>Other Information</h2><p dir="ltr">Published in: Energy Science & Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1002/ese3.1101" target="_blank">https://dx.doi.org/10.1002/ese3.1101</a></p>2022-02-11T12:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1002/ese3.1101https://figshare.com/articles/journal_contribution/Comprehensive_thermoeconomic_exergoeconomic_and_optimization_analyses_of_direct_oxy_combustion_supercritical_CO_sub_2_sub_intercooled_and_reheated_cycles_under_design_and_off_design_conditions/29045105CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/290451052022-02-11T12:00:00Z |
| spellingShingle | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions Wahib A. Al‐Ammari (18877408) Engineering Engineering practice and education Mechanical engineering Direct oxy-combustion (DOC) Energetic and exergetic analysis Exergoeconomic analysis Thermal efficiency Part-load performance Power generation |
| status_str | publishedVersion |
| title | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| title_full | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| title_fullStr | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| title_full_unstemmed | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| title_short | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| title_sort | Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐design conditions |
| topic | Engineering Engineering practice and education Mechanical engineering Direct oxy-combustion (DOC) Energetic and exergetic analysis Exergoeconomic analysis Thermal efficiency Part-load performance Power generation |