Simultaneous multiple surface method for the design of new parabolic dish-type concentrator using a Cassegranian approach

• Autor(a) principal: Canavarro, Diogo
• Data de Publicação: 2019
• Outros Autores: Chaves, Júlio, Collares-Pereira, Manuel
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10174/31527; https://doi.org/10.1063/1.5117584
• topic: Solar Energy; Cassegrain; Parabolic Dish

Parabolic Dish concentrators are a well-known solution for many applications such as Concentrated Solar Power (CSP), solar metallurgical processes, solar reactors for fuel production, etc. Nevertheless, this technology is facing a tremendous challenge to become more efficient and competitive (especially within CSP field) in comparison with other technologies, namely Central Tower Receivers. A possible path to achieve this goal is to use a Cassegranian approach which enables a top-down design, placing the receiver closer to the ground and with potential higher concentration. In this paper, the theoretical limit of such configurations and a practical solution is presented with a discussion of its advantages and possible drawbacks.