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Proceedings of the 1986 International Congress on Renewable Energy Sources. Solar availability of the parabolic trough collector fields. Application to the IEA/SSPS acurex collector field which tracks the sun around an East-West Axis. International Congress on Renewable Energy Sources [18-23 Mayo 1986, Madrid].

1987

v. 2
CIENA
1113

84-00-6674-X

This paper presents the solar availability of the ACUREX collector field as a function of time, isolation, and operational conditions as parameters during the last two years. In this paper, solar availability has been defined as the radio of the time when the beam radiation exceeds certain threshold levels to the total time during daylight periods. To determine the solar availability, a threshold level of irradiation (see below) as well as three typical operation ranges (from 180º TO 300ºC) have been analyzed. The solar irradiation data have been chosen from the magnetic data tapes of meteorological stations on the Plataforma Solar de Almería. The global results of the last two years show an annual average solar availability of about 50. ABSTRACT. . The monthly average solar availability varies during the year from 60. INTRODUCTION. in summer and winter, to 40. SOLAR AVAILABILITY. in spring and autumn; the daily average solar availability presents more fluctuation in winter than in summer. THRESHOLD RADIATION LEVEL. RESULTS. REFERENCES.

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