Energetic and exergetic analysis of Rankine cycles for solar power plants with parabolic trough and thermal storage
| Autor: | Florin-Niculae Alexe, George Darie, Diana Tuţică, Mihaela Norisor, Victor-Eduard Cenusa, Chiriţă-Mihai Muşat |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry 020209 energy Nuclear engineering Photovoltaic system lcsh:TJ807-830 General Engineering lcsh:Renewable energy sources Mechanical engineering 02 engineering and technology 021001 nanoscience & nanotechnology Thermal energy storage Solar energy Photovoltaic thermal hybrid solar collector Solar air conditioning lcsh:Energy conservation Concentrated solar power 0202 electrical engineering electronic engineering information engineering Parabolic trough lcsh:TJ163.26-163.5 0210 nano-technology business Solar power |
| Zdroj: | Renewable Energy and Environmental Sustainability, Vol 1, p 10 (2016) |
| ISSN: | 2493-9439 |
| Popis: | The paper analyzes the “secondary” circuit (for thermodynamic conversion) of a Concentrated Solar Power (CSP) plant with thermodynamic cycle, whose mirrors field supplies a thermal power, averaged over a sunny day, of about 100 MW heat. We study the case of parabolic trough solar collector using silicone oil in the “primary” circuit, which limits the peak temperature below 400 °C. The “primary” circuit uses thermal storage, allowing a delay between the power generation in rapport with the solar energy capture. We choose a water-steam cycle, type Hirn. For increasing its efficiency, it has regenerative feed water preheating and steam reheating. We compared, energetic and exergetic, two types of cycles, using a numerical model with iterative structure, developed by the authors. The results showed that the simplified design achieves practically the same thermodynamic performances with the advanced one. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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