Dissertation/ Thesis
Resultados exergoeconômicos e exergoambientais de planta de potência integrada a torre solar e heliostatos ; Exergoeconomic and exergoenvironmental results of a solar power tower plant
| العنوان: | Resultados exergoeconômicos e exergoambientais de planta de potência integrada a torre solar e heliostatos ; Exergoeconomic and exergoenvironmental results of a solar power tower plant |
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| المؤلفون: | Azevedo, Jonathan Leandro Brando de |
| المساهمون: | Cavalcanti, Eduardo José Cidade, Nunes, Andrea Oliveira, Carvalho, Mônica |
| بيانات النشر: | Brasil UFRN PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA MECÂNICA |
| سنة النشر: | 2019 |
| المجموعة: | Universidade Federal do Rio Grande do Norte: Repositório Institucional (RI UFRN) |
| مصطلحات موضوعية: | Exergia, Exergoeconomia, Campo solar, Planta de potência, CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
| الوصف: | The growing demand for power generation makes the search for more efficient ways to produce electricity, with lower costs and lower environmental impacts, be frequent among the research lines. This work analyzed a power conversion cycle using solar energy captured by heliostats and solar tower receiver. The thermal energy storage system has been sized to maintain electricity generation 24 hours a day and compared to the same cycle operating 12 hours a day. The simulation uses the normal direct radiation parameter in Natal-RN to study the cycle behavior in the region. The mathematical model was developed in the EES software and used the SPECO methodology. The cycle components were evaluated according to exergetic, exergoeconomic and exergoenvironmental analysis. The solar system was responsible for the highest rates of exergy destruction and worst exergy efficiency. The results indicate that keeping the cycle running longer hours reduces cycle power and efficiency while the cost and environmental impact of electricity increases. The specific cost of electricity ranged from 48.61 US$/GJ to 85.80 US$/GJ for 12 h and 24 h operation, respectively. Compared to other cycles, the environmental impact of electricity obtained in this work was the lowest: 0.54 mPt/kWh and 0.95 mPt/kWh for 12 h and 24 h operation, respectively. The exergoeconomic approach pointed out the critical components from the economic point of view, while the exergoenvironmental assessment indicated the critical components from the environmental point of view. ; A crescente demanda por geração de energia faz com que a busca por formas mais eficientes de produzir eletricidade, com menores custos e menores impactos ambientais, seja frequente entre as linhas de pesquisa. Esse trabalho analisou um ciclo de conversão de potência utilizando energia solar captada por meio de heliostatos e receptor de torre solar. O sistema de armazenamento de energia da planta foi dimensionado para manter a geração de energia elétrica 24 horas por dia e comparado ao mesmo ... |
| نوع الوثيقة: | master thesis |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| Relation: | AZEVEDO, Jonathan Leandro Brando de. Resultados exergoeconômicos e exergoambientais de planta de potência integrada a torre solar e heliostatos. 2019. 96f. Dissertação (Mestrado em Engenharia Mecânica) - Centro de Tecnologia, Universidade Federal do Rio Grande do Norte, Natal, 2019.; https://repositorio.ufrn.br/jspui/handle/123456789/28510 |
| الاتاحة: | https://repositorio.ufrn.br/jspui/handle/123456789/28510 |
| Rights: | Acesso Aberto |
| رقم الانضمام: | edsbas.EFEA40BF |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |