RT Journal Article
T1 Comparison and analysis of two measurement systems of horizontal atmospheric extinction of solar radiation
A1 Barbero, Javier
A1 López Rodríguez, Gabriel
A1 Ballestrín, Jesús
A1 Alonso Montesinos, Joaquín
A1 Carra, Elena
A1 Marzo, Aitor
A1 Polo, Jesús
A1 Fernández-Reche, Jesús
A1 Batlles, Francisco Javier
A1 Enrique, Raúl
AB Direct normal irradiance is the component of solar radiation exploited by concentrating solar power plants. However, solar radiation reflected by heliostats can be partially extinguished on its way to the receivers in solar power tower plants. These energy losses are accentuated with the distance travelled by the light. The growing development of solar power tower plants has highlighted the interest in determining this phenomenon. This paper presents the results of a six-month intercomparison campaign of the two most promising extinction measuring systems. The system developed at Plataforma Solar de Almería (SE Spain) is based on a direct measurement methodology by using two digital cameras. The second system indirectly estimates the extinction from forward-scatter meter (FSM) measurements. Two FSMs were used in this study. Both FSMs provided the same Meteorological Optical Range (MOR) trends, with differences into declared error margins. A selected number of days corresponding to medium to high aerosol loads have been used to assess the performance of both types of systems. Results show that, in these days, the atmospheric extinction coefficient values derived from the two-camera system were on average 2.1 times higher than those determined with the FSMs. Semi-empirical and empirical corrections for the aerosol spectral characteristics and for the content of water vapour in the atmosphere have been applied to the FSM measurements so that both systems provide similar values of horizontal attenuation.
PB Elsevier
SN 1352-2310
SN 1878-2442 (electrónico)
YR 2021
FD 2021-09-15
LK https://hdl.handle.net/10272/24512
UL https://hdl.handle.net/10272/24512
LA eng
NO F.J. Barbero, G. López, J. Ballestrín, J.L. Bosch, J. Alonso-Montesinos, M.E. Carra, A. Marzo, J. Polo, J. Fernández-Reche, F.J. Batlles, R. Enrique, Comparison and analysis of two measurement systems of horizontal atmospheric extinction of solar radiation, Atmospheric Environment, Volume 261, 2021, 118608, ISSN 1352-2310, https://doi.org/10.1016/j.atmosenv.2021.118608.
NO This work is included in the activities of the PRESOL project (Fore­cast of Solar Radiation at the Receiver of a Solar Power Plant) funded by the Spanish Government (Ref. ENE2014-59454-C3-1, 2, 3-R). And also the PVCastSOIL Project (Ref. ENE2017-83790-C3-1, 2, 3), funded by the Spanish Government and co-financed by the European Regional Devel­opment Fund. The authors acknowledge the financial support provided by the Innova Chile - CORFO, PROJECT CODE: 17BPE3-83761, as well as CONICYT/FONDAP/15110019 “Solar Energy Research Center” SERC-Chile.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026