A comparative analysis of configurations of linear Fresnel collectors for concentrating solar power

Montes, Maria Jesus and Rubbia, C. and Abbas Cámara, Rubén and Martínez-Val Peñalosa, José María (2014). A comparative analysis of configurations of linear Fresnel collectors for concentrating solar power. "Energy", v. 73 (n. null); pp. 192-203. ISSN 0360-5442. https://doi.org/10.1016/j.energy.2014.06.010.

Description

Title: A comparative analysis of configurations of linear Fresnel collectors for concentrating solar power
Author/s:
  • Montes, Maria Jesus
  • Rubbia, C.
  • Abbas Cámara, Rubén
  • Martínez-Val Peñalosa, José María
Item Type: Article
Título de Revista/Publicación: Energy
Date: August 2014
Volume: 73
Subjects:
Freetext Keywords: Linear Fresnel collectors; Optical optimization; Useful energy efficiency; Compact linear Fresnel collectors
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Linear Fresnel collector arrays present some relevant advantages in the domain of concentrating solar power because of their simplicity, robustness and low capital cost. However, they also present important drawbacks and limitations, notably their average concentration ratio, which seems to limit significantly the performance of these systems. First, the paper addresses the problem of characterizing the mirror field configuration assuming hourly data of a typical year, in reference to a configuration similar to that of Fresdemo. For a proper comparative study, it is necessary to define a comparison criterion. In that sense, a new variable is defined, the useful energy efficiency, which only accounts for the radiation that impinges on the receiver with intensities above a reference value. As a second step, a comparative study between central linear Fresnel reflectors and compact linear Fresnel reflectors is carried out. This analysis shows that compact linear Fresnel reflectors minimize blocking and shading losses compared to a central configuration. However this minimization is not enough to overcome other negative effects of the compact Fresnel collectors, as the greater dispersion of the rays reaching the receiver, caused by the fact that mirrors must be located farther from the receiver, which yields to lower efficiencies.

More information

Item ID: 35708
DC Identifier: http://oa.upm.es/35708/
OAI Identifier: oai:oa.upm.es:35708
DOI: 10.1016/j.energy.2014.06.010
Official URL: http://www.sciencedirect.com/science/article/pii/S0360544214007087
Deposited by: Memoria Investigacion
Deposited on: 05 Oct 2015 16:12
Last Modified: 18 Aug 2017 11:06
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