Estudo experimental de um concentrador solar cilíndrico parabólico
Due to high energy demand the use of high polluting and non-renewable energy source became common in the last decades. Currently, the use of renewable energy sources is increasing due to the goals imposed on the emission of pollutants, mainly in Europe and North America. Among the sources of renewab...
| Autor principal: | Netzel, Ricardo Andreani |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/12317 |
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| Resumo: |
Due to high energy demand the use of high polluting and non-renewable energy source became common in the last decades. Currently, the use of renewable energy sources is increasing due to the goals imposed on the emission of pollutants, mainly in Europe and North America. Among the sources of renewable energies (hydropower, biomass, wind and solar), the most outstanding is the solar because of its availability mainly in the tropical regions, due to the high levels of incident radiation on the earth's surface. Based on this fact, the present proposal consists in the construction of a parabolic solar concentrator, with the main objective being the analysis of its thermal efficiency. The studies will be based on the use of two concentrator tubes configurations: copper tube without selective paint and copper tube with selective paint. In addition to the efficiency analysis, a linear regression analysis will also be used to determine the influence of the controllable and uncontrollable variables on the device behavior. The experiments involving the unpainted concentrator tube configuration obtained an average thermal efficiency of 28.99%, while the thermal efficiency using the painted concentrator tube configuration was 36.69%. Temperature levels and operating hours are inversely related to the thermal efficiency of the concentrator, while incident solar radiation is directly proportional to the thermal efficiency of the device. |
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