A METHOD FOR CALCULATING THE SLOPE ERROR OF MIRRORED SURFACES CONSISTED OF FACETS CURVED IN ONE AXIS USED IN CONCENTRATED SOLAR POWER (CSP) TOWER SYSTEMS

Authors

  • Joachim Göttsche Solar-Institut Jülich
  • Marcelo Lampkowski FCA/Unesp Botucatu
  • Pedro Henrique Silva Bezerra FCA/Unesp Botucatu
  • Érico Tadao Teramoto Unesp- Campus de Registro
  • Cristiano Teixeira Boura Solar-Institut Jülich

DOI:

https://doi.org/10.17224/EnergAgric.2017v32n1p65-71

Abstract

Heliostats are considered the most important cost elements of a Concentrated Solar Power (CSP) power tower system and the use of suitable heliostats can generate reductions up to 40% in the power losses. Therefore, the design and optimization of heliostats have a great importance in solar tower power plant projects. This technical brief aims to present a method for calculating the slope error of bended-mirrored surfaces used in CSP power tower systems. For that, a heliostat composed by six mirror facets measuring 2.5 meters (width) x 0.533 meters (height) each, curved only in one axis and with a 30 meters’ focal length was considered. The found slope errors results using the numerical approach and the analytical approach were very similar, suggesting that both methods are applicable in this case.

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Published

2017-06-10

How to Cite

Göttsche, J., Lampkowski, M., Bezerra, P. H. S., Teramoto, Érico T., & Boura, C. T. (2017). A METHOD FOR CALCULATING THE SLOPE ERROR OF MIRRORED SURFACES CONSISTED OF FACETS CURVED IN ONE AXIS USED IN CONCENTRATED SOLAR POWER (CSP) TOWER SYSTEMS. ENERGY IN AGRICULTURE, 32(1), 65–71. https://doi.org/10.17224/EnergAgric.2017v32n1p65-71

Issue

Vol. 32 No. 1 (2017): Revista Energia na Agricultura

Section

Conventional and Alternative Sources of Energy and its Rational Use in Agriculture

License

Esta revista proporciona acesso publico a todo seu conteúdo, seguindo o princípio que tornar gratuito o acesso a pesquisas gera um maior intercâmbio global de conhecimento. Tal acesso está associado a um crescimento da leitura e citação do trabalho de um autor. Para maiores informações sobre esta abordagem, visite Public Knowledge Project, projeto que desenvolveu este sistema para melhorar a qualidade acadêmica e pública da pesquisa, distribuindo o OJS assim como outros software de apoio ao sistema de publicação de acesso público a fontes acadêmicas.

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