Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator
Abstract In this paper, a new configuration of a solar combined cooling, heating, and power (CCHP) system is proposed to recover the waste thermal energy of a steam power plant, which provides the cooling and heating needs of an apartment complex located in Tehran. The required energy of the system...
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| Format: | Article |
| Language: | English |
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Wiley
2022-03-01
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| Series: | Energy Science & Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ese3.1055 |
| _version_ | 1818315163667791872 |
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| author | Peyman Pourmoghadam Hassan Jafari Mosleh Maryam Karami |
| author_facet | Peyman Pourmoghadam Hassan Jafari Mosleh Maryam Karami |
| author_sort | Peyman Pourmoghadam |
| collection | DOAJ |
| description | Abstract In this paper, a new configuration of a solar combined cooling, heating, and power (CCHP) system is proposed to recover the waste thermal energy of a steam power plant, which provides the cooling and heating needs of an apartment complex located in Tehran. The required energy of the system is supplied by the parabolic trough solar collectors (PTCs) and, if necessary, an auxiliary heater is also used. An ejector refrigeration cycle (ERC) and a steam Rankine cycle are used for cooling and power generation, respectively. The cycle is dynamically modeled over a year using a TRNSYS‐EES co‐simulator. It is found that the highest Rankine cycle efficiency is obtained in the cold months (January) because of the decrease of turbine backpressure. With increasing the turbine inlet temperature from 190 to 210°C, the Rankine cycle and the overall cycle efficiencies increased about 1% and 2%, respectively. The maximum cooling, heating, and power generation, as well as the maximum solar fraction, are obtained at the turbine inlet temperatures of 210°C, which are 185.46, 598.65, 680.49 kW, and 70%, respectively. The annual overall performance and the solar fraction of the proposed CCHP system are 32.5% and 9.5%, respectively, based on 3000 m2 collector aperture area. The exergy analysis indicated that the maximum annual exergy destruction is related to the solar collectors, which have comprised 27% of the total exergy destruction. In addition, the yearly exergy efficiency of the proposed system is 39.9%. |
| first_indexed | 2024-12-13T09:01:10Z |
| format | Article |
| id | doaj.art-cb43d642c9ef43fdae471cc82a722dae |
| institution | Directory Open Access Journal |
| issn | 2050-0505 |
| language | English |
| last_indexed | 2024-12-13T09:01:10Z |
| publishDate | 2022-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Energy Science & Engineering |
| spelling | doaj.art-cb43d642c9ef43fdae471cc82a722dae2022-12-21T23:53:10ZengWileyEnergy Science & Engineering2050-05052022-03-0110370772510.1002/ese3.1055Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulatorPeyman Pourmoghadam0Hassan Jafari Mosleh1Maryam Karami2Faculty of New Sciences and Technologies University of Tehran Tehran IranDepartment of Mechanical Engineering Sharif University of Technology Tehran IranFaculty of Engineering Kharazmi University Tehran IranAbstract In this paper, a new configuration of a solar combined cooling, heating, and power (CCHP) system is proposed to recover the waste thermal energy of a steam power plant, which provides the cooling and heating needs of an apartment complex located in Tehran. The required energy of the system is supplied by the parabolic trough solar collectors (PTCs) and, if necessary, an auxiliary heater is also used. An ejector refrigeration cycle (ERC) and a steam Rankine cycle are used for cooling and power generation, respectively. The cycle is dynamically modeled over a year using a TRNSYS‐EES co‐simulator. It is found that the highest Rankine cycle efficiency is obtained in the cold months (January) because of the decrease of turbine backpressure. With increasing the turbine inlet temperature from 190 to 210°C, the Rankine cycle and the overall cycle efficiencies increased about 1% and 2%, respectively. The maximum cooling, heating, and power generation, as well as the maximum solar fraction, are obtained at the turbine inlet temperatures of 210°C, which are 185.46, 598.65, 680.49 kW, and 70%, respectively. The annual overall performance and the solar fraction of the proposed CCHP system are 32.5% and 9.5%, respectively, based on 3000 m2 collector aperture area. The exergy analysis indicated that the maximum annual exergy destruction is related to the solar collectors, which have comprised 27% of the total exergy destruction. In addition, the yearly exergy efficiency of the proposed system is 39.9%.https://doi.org/10.1002/ese3.1055combined cooling, heating, and powerejector coolingsolar energytransient simulationTRNSYS |
| spellingShingle | Peyman Pourmoghadam Hassan Jafari Mosleh Maryam Karami Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator Energy Science & Engineering combined cooling, heating, and power ejector cooling solar energy transient simulation TRNSYS |
| title | Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator |
| title_full | Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator |
| title_fullStr | Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator |
| title_full_unstemmed | Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator |
| title_short | Dynamic simulation of a solar ejector‐based trigeneration system using TRNSYS‐EES co‐simulator |
| title_sort | dynamic simulation of a solar ejector based trigeneration system using trnsys ees co simulator |
| topic | combined cooling, heating, and power ejector cooling solar energy transient simulation TRNSYS |
| url | https://doi.org/10.1002/ese3.1055 |
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