Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids
An energy and exergy model for a hybrid multi-stage Brayton cycle solar thermal plant is presented, incorporating an arbitrary number of compression stages with intermediate cooling and expansion with reheating. In hybrid operation, the cycle receives thermal energy from a solar concentration system...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-11-01
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| Series: | International Journal of Thermofluids |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266620272300157X |
| _version_ | 1827593550047477760 |
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| author | Faustino Moreno-Gamboa César Nieto-Londoño |
| author_facet | Faustino Moreno-Gamboa César Nieto-Londoño |
| author_sort | Faustino Moreno-Gamboa |
| collection | DOAJ |
| description | An energy and exergy model for a hybrid multi-stage Brayton cycle solar thermal plant is presented, incorporating an arbitrary number of compression stages with intermediate cooling and expansion with reheating. In hybrid operation, the cycle receives thermal energy from a solar concentration system of a heliostat field and a central tower complemented by reheaters and an external main combustion chamber of natural gas. The proposed model considers the irreversibility of the plant's components, and direct solar radiation is estimated with the Daily Integration Approach model. The model is validated and implemented with the Solugas experimental plant parameters and is applied in Barranquilla, Colombia. Additionally, this work presents a comparative analysis of different plant configurations using air, carbon dioxide and helium as working fluids. Comparing the power, the energetic and exergetic efficiencies, and the destruction of exergy on an average day of the year, the maximum points of these variables are also found as a function of the pressure ratio. Observing that the two-compression-one-expansion CO2 cycle presents maximum fuel conversion rates and the slightest destruction of total exergy. |
| first_indexed | 2024-03-09T02:13:17Z |
| format | Article |
| id | doaj.art-05fc28bdfcbd422d85cd37219d9da151 |
| institution | Directory Open Access Journal |
| issn | 2666-2027 |
| language | English |
| last_indexed | 2024-03-09T02:13:17Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj.art-05fc28bdfcbd422d85cd37219d9da1512023-12-07T05:30:46ZengElsevierInternational Journal of Thermofluids2666-20272023-11-0120100442Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluidsFaustino Moreno-Gamboa0César Nieto-Londoño1Facultad de Ingeniería, Grupo de Fluidos y Térmicas, Universidad Francisco de Paula Santander, Cúcuta ColombiaEscuela de Ingeniería, Grupo de Energía y Termodinámica, Universidad Pontifica Bolivariana, Medellín Colombia; Corresponding author.An energy and exergy model for a hybrid multi-stage Brayton cycle solar thermal plant is presented, incorporating an arbitrary number of compression stages with intermediate cooling and expansion with reheating. In hybrid operation, the cycle receives thermal energy from a solar concentration system of a heliostat field and a central tower complemented by reheaters and an external main combustion chamber of natural gas. The proposed model considers the irreversibility of the plant's components, and direct solar radiation is estimated with the Daily Integration Approach model. The model is validated and implemented with the Solugas experimental plant parameters and is applied in Barranquilla, Colombia. Additionally, this work presents a comparative analysis of different plant configurations using air, carbon dioxide and helium as working fluids. Comparing the power, the energetic and exergetic efficiencies, and the destruction of exergy on an average day of the year, the maximum points of these variables are also found as a function of the pressure ratio. Observing that the two-compression-one-expansion CO2 cycle presents maximum fuel conversion rates and the slightest destruction of total exergy.http://www.sciencedirect.com/science/article/pii/S266620272300157XCSP Brayton cycleExergy analysisEnergy systems analysisWorking fluids |
| spellingShingle | Faustino Moreno-Gamboa César Nieto-Londoño Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids International Journal of Thermofluids CSP Brayton cycle Exergy analysis Energy systems analysis Working fluids |
| title | Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids |
| title_full | Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids |
| title_fullStr | Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids |
| title_full_unstemmed | Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids |
| title_short | Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids |
| title_sort | energy and exergetic performance analysis of a hybrid solar multi stage brayton cycle with different working fluids |
| topic | CSP Brayton cycle Exergy analysis Energy systems analysis Working fluids |
| url | http://www.sciencedirect.com/science/article/pii/S266620272300157X |
| work_keys_str_mv | AT faustinomorenogamboa energyandexergeticperformanceanalysisofahybridsolarmultistagebraytoncyclewithdifferentworkingfluids AT cesarnietolondono energyandexergeticperformanceanalysisofahybridsolarmultistagebraytoncyclewithdifferentworkingfluids |