Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts
Solar energy is an endless source of renewable energy, so solar-powered S-CO2 cycle power generation systems have received much attention from scholars. In this research, a new S-CO2 cycle layout based on a recompression cycle and an intercooling cycle is proposed, and the thermal performance of the...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24016435 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841555793342627840 |
|---|---|
| author | Qiujie Cheng Yunlong Zhou Mei Yang Xinrui Han Jiani Liu |
| author_facet | Qiujie Cheng Yunlong Zhou Mei Yang Xinrui Han Jiani Liu |
| author_sort | Qiujie Cheng |
| collection | DOAJ |
| description | Solar energy is an endless source of renewable energy, so solar-powered S-CO2 cycle power generation systems have received much attention from scholars. In this research, a new S-CO2 cycle layout based on a recompression cycle and an intercooling cycle is proposed, and the thermal performance of the three layouts is compared and analyzed. Percentage exergy loss of each component in the system is obtained by conventional exergy analysis and further advanced exergy analysis is used to explore the enhancement possibilities of each component and their interactions. The investigation results revealed that the recompression cycle, intercooling cycle and combined cycle had respective evaluations of 38.45 %, 39.775 and 42.05 % efficiency. Sensitivity analysis revealed that the provided cycle has superior efficiency at higher turbine inlet parameters. The conventional exergy analysis and advanced exergy analysis yielded a combined cycle HE1 exergy loss of 8.27 MW and an avoidable exergy loss of 4.70 MW, with a high potential for improvement. This study provides directions for the structural optimization of solar-driven S-CO2 cycle power generation systems. |
| format | Article |
| id | doaj-art-f1bfa3b1c06347a5a5dadeccc092df9c |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-f1bfa3b1c06347a5a5dadeccc092df9c2025-01-08T04:52:39ZengElsevierCase Studies in Thermal Engineering2214-157X2025-01-0165105612Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layoutsQiujie Cheng0Yunlong Zhou1Mei Yang2Xinrui Han3Jiani Liu4School of Energy and Power Engineering, Northeast Electric Power University, Jilin, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, ChinaCorresponding author.; School of Energy and Power Engineering, Northeast Electric Power University, Jilin, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, ChinaSolar energy is an endless source of renewable energy, so solar-powered S-CO2 cycle power generation systems have received much attention from scholars. In this research, a new S-CO2 cycle layout based on a recompression cycle and an intercooling cycle is proposed, and the thermal performance of the three layouts is compared and analyzed. Percentage exergy loss of each component in the system is obtained by conventional exergy analysis and further advanced exergy analysis is used to explore the enhancement possibilities of each component and their interactions. The investigation results revealed that the recompression cycle, intercooling cycle and combined cycle had respective evaluations of 38.45 %, 39.775 and 42.05 % efficiency. Sensitivity analysis revealed that the provided cycle has superior efficiency at higher turbine inlet parameters. The conventional exergy analysis and advanced exergy analysis yielded a combined cycle HE1 exergy loss of 8.27 MW and an avoidable exergy loss of 4.70 MW, with a high potential for improvement. This study provides directions for the structural optimization of solar-driven S-CO2 cycle power generation systems.http://www.sciencedirect.com/science/article/pii/S2214157X24016435Recompression cycleIntercooling cycleSolar energyAdvanced exergy analysis |
| spellingShingle | Qiujie Cheng Yunlong Zhou Mei Yang Xinrui Han Jiani Liu Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts Case Studies in Thermal Engineering Recompression cycle Intercooling cycle Solar energy Advanced exergy analysis |
| title | Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts |
| title_full | Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts |
| title_fullStr | Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts |
| title_full_unstemmed | Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts |
| title_short | Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts |
| title_sort | energy exergy and advanced exergy analysis of a novel solar based s co2 cycle and comparison of systems with different layouts |
| topic | Recompression cycle Intercooling cycle Solar energy Advanced exergy analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24016435 |
| work_keys_str_mv | AT qiujiecheng energyexergyandadvancedexergyanalysisofanovelsolarbasedsco2cycleandcomparisonofsystemswithdifferentlayouts AT yunlongzhou energyexergyandadvancedexergyanalysisofanovelsolarbasedsco2cycleandcomparisonofsystemswithdifferentlayouts AT meiyang energyexergyandadvancedexergyanalysisofanovelsolarbasedsco2cycleandcomparisonofsystemswithdifferentlayouts AT xinruihan energyexergyandadvancedexergyanalysisofanovelsolarbasedsco2cycleandcomparisonofsystemswithdifferentlayouts AT jianiliu energyexergyandadvancedexergyanalysisofanovelsolarbasedsco2cycleandcomparisonofsystemswithdifferentlayouts |