Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles
The effect of supply of additional external low-grade heat on overall thermodynamic efficiency is considered using the example of a cycle with a two-stage pressure increase by a compressor and a pump (by analogy with the Allam cycle). The influence of the cycle architecture in terms of organizing th...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_07009.pdf |
| _version_ | 1797345254862487552 |
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| author | Sadkin Ivan Shchinnikov Pavel |
| author_facet | Sadkin Ivan Shchinnikov Pavel |
| author_sort | Sadkin Ivan |
| collection | DOAJ |
| description | The effect of supply of additional external low-grade heat on overall thermodynamic efficiency is considered using the example of a cycle with a two-stage pressure increase by a compressor and a pump (by analogy with the Allam cycle). The influence of the cycle architecture in terms of organizing the heat fluxes in the pressure boosting system on thermal efficiency is also considered. The analysis is performed in a wide range of initial parameters. It has been determined that an increase in the CO2 temperature at the inlet to the main regenerator due to the supply of external low-grade heat for every 25°C leads to an increase in the cycle efficiency by 2%. |
| first_indexed | 2024-03-08T11:14:51Z |
| format | Article |
| id | doaj.art-e986d6dbe7bd4bc1b75abc0105496f5d |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-08T11:14:51Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-e986d6dbe7bd4bc1b75abc0105496f5d2024-01-26T10:38:24ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014590700910.1051/e3sconf/202345907009e3sconf_sts-39_07009Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cyclesSadkin Ivan0Shchinnikov Pavel1NSTU, Department of Thermal Power PlantsNSTU, Department of Thermal Power PlantsThe effect of supply of additional external low-grade heat on overall thermodynamic efficiency is considered using the example of a cycle with a two-stage pressure increase by a compressor and a pump (by analogy with the Allam cycle). The influence of the cycle architecture in terms of organizing the heat fluxes in the pressure boosting system on thermal efficiency is also considered. The analysis is performed in a wide range of initial parameters. It has been determined that an increase in the CO2 temperature at the inlet to the main regenerator due to the supply of external low-grade heat for every 25°C leads to an increase in the cycle efficiency by 2%.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_07009.pdf |
| spellingShingle | Sadkin Ivan Shchinnikov Pavel Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles E3S Web of Conferences |
| title | Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles |
| title_full | Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles |
| title_fullStr | Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles |
| title_full_unstemmed | Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles |
| title_short | Influence of external supply of low-grade heat on thermal efficiency of sCO2 power cycles |
| title_sort | influence of external supply of low grade heat on thermal efficiency of sco2 power cycles |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_07009.pdf |
| work_keys_str_mv | AT sadkinivan influenceofexternalsupplyoflowgradeheatonthermalefficiencyofsco2powercycles AT shchinnikovpavel influenceofexternalsupplyoflowgradeheatonthermalefficiencyofsco2powercycles |