Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant
A solar-aided coal-fired power plant realizes the integration of a fossil fuel (coal or gas) and clean energy (solar). In this paper, a conventional 600 MW coal-fired power plant and a 600 MW solar-aided coal-fired power plant have been taken as the study case to understand the merits of solar-aided...
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MDPI AG
2013-03-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/15/3/1014 |
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| author | Eric Hu Kaiyu Tan Yongping Yang Yong Zhu Rongrong Zhai |
| author_facet | Eric Hu Kaiyu Tan Yongping Yang Yong Zhu Rongrong Zhai |
| author_sort | Eric Hu |
| collection | DOAJ |
| description | A solar-aided coal-fired power plant realizes the integration of a fossil fuel (coal or gas) and clean energy (solar). In this paper, a conventional 600 MW coal-fired power plant and a 600 MW solar-aided coal-fired power plant have been taken as the study case to understand the merits of solar-aided power generation (SAPG) technology. The plants in the case study have been analyzed by using the First and Second Laws of Thermodynamics principles. The solar irradiation and load ratio have been considered in the analysis. We conclude that if the solar irradiation was 925 W/m2 and load ratio of the SAPG plant was 100%, the exergy efficiency would be 44.54% and the energy efficiency of the plant (46.35%). It was found that in the SAPG plant the largest exergy loss was from the boiler, which accounted for about 76.74% of the total loss. When the load ratio of the unit remains at 100%, and the solar irradiation varies from 500 W/m2 to 1,100 W/m2, the coal savings would be in the range of 8.6 g/kWh to 15.8 g/kWh. If the solar irradiation were kept at 925 W/m2 while the load ratio of the plant changed from 30% to 100%, the coal savings could be in the range of 11.99 g/kWh to 13.75 g/kWh. |
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| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-13T00:52:53Z |
| publishDate | 2013-03-01 |
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| series | Entropy |
| spelling | doaj.art-12c30fb6923b4083a0d04cd3c7223d9f2022-12-22T03:09:50ZengMDPI AGEntropy1099-43002013-03-011531014103410.3390/e15031014Exergetic and Parametric Study of a Solar Aided Coal-Fired Power PlantEric HuKaiyu TanYongping YangYong ZhuRongrong ZhaiA solar-aided coal-fired power plant realizes the integration of a fossil fuel (coal or gas) and clean energy (solar). In this paper, a conventional 600 MW coal-fired power plant and a 600 MW solar-aided coal-fired power plant have been taken as the study case to understand the merits of solar-aided power generation (SAPG) technology. The plants in the case study have been analyzed by using the First and Second Laws of Thermodynamics principles. The solar irradiation and load ratio have been considered in the analysis. We conclude that if the solar irradiation was 925 W/m2 and load ratio of the SAPG plant was 100%, the exergy efficiency would be 44.54% and the energy efficiency of the plant (46.35%). It was found that in the SAPG plant the largest exergy loss was from the boiler, which accounted for about 76.74% of the total loss. When the load ratio of the unit remains at 100%, and the solar irradiation varies from 500 W/m2 to 1,100 W/m2, the coal savings would be in the range of 8.6 g/kWh to 15.8 g/kWh. If the solar irradiation were kept at 925 W/m2 while the load ratio of the plant changed from 30% to 100%, the coal savings could be in the range of 11.99 g/kWh to 13.75 g/kWh.http://www.mdpi.com/1099-4300/15/3/1014solar-aided coal-fired power plantexergyefficiencysolar energy |
| spellingShingle | Eric Hu Kaiyu Tan Yongping Yang Yong Zhu Rongrong Zhai Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant Entropy solar-aided coal-fired power plant exergy efficiency solar energy |
| title | Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant |
| title_full | Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant |
| title_fullStr | Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant |
| title_full_unstemmed | Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant |
| title_short | Exergetic and Parametric Study of a Solar Aided Coal-Fired Power Plant |
| title_sort | exergetic and parametric study of a solar aided coal fired power plant |
| topic | solar-aided coal-fired power plant exergy efficiency solar energy |
| url | http://www.mdpi.com/1099-4300/15/3/1014 |
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