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Solar Irradiation Fundamentals and Solar Simulators
2020This chapter is prepared for introduction to solar radiation and solar simulators, which are widely used photovoltaic researches. In this study, the fundamentals of solar radiation and the components of solar radiation in the atmosphere are briefly expressed. Besides, solar simulators used in PV tests are emphasized, classification of solar simulators,
V. Esen, Ş. Sağlam, B. Oral
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Total solar irradiance variations
Journal of Atmospheric and Solar-Terrestrial Physics, 1999Abstract Total solar irradiance has been monitored from space for nearly two decades. These space-borne observations have established conclusively that total solar irradiance changes over a wide range of periodicities—from minutes to the 11-year solar cycle.
J.M. Pap, C. Fröhlich
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Solar irradiance conversion models
Solar Cells, 1986Algorithmes de conversion: 1) du rayonnement recu par une surface plane et une surface inclinee, 2) du rayonnement global en rayonnement diffus et direct, 3) de l'eclairement global (ou direct) en relation avec d'autres parametres: insolation, nebulosite, images ...
Richard Perez, Ronald Stewart
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Theory of Solar Irradiance Variations
Space Science Reviews, 2000The theory of stellar structure can be used to identify the most plausible mechanisms for the irradiance variations associated with the solar cycle. Changes in surface emissivity, i.e. the reduced cooling in spots and enhanced emission by small scale magnetic fields, are the most effective mechanisms and account for most of the observed variation.
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Solar indices and solar u.v.-irradiances
Planetary and Space Science, 1983Abstract Solar radio fluxes, Zurich relative sunspot number R z , and Solar Call plage indexes daily values for the period 1957–1980 are analyzed in order to test the stability of the series with respect to time and solar activity. It is found that between the series of the 3,8 and 10 cm radio fluxes and the series of R z no significant ...
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Solar irradiance variations and solar activity
Journal of Geophysical Research: Space Physics, 1982A mean value for the 1 AU total solar irradiance of 1368.2 W/m2 and a downward trend of 0.05% per year were derived from measurements by the Active Cavity Radiometer Irradiance Monitor (ACRIM) experiment on the Solar Maximum Mission during 1980. Distinct temporary solar irradiance decreases associated with solar activity maxima were observed with a ...
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2011
Since solar irradiance is not constant, it has become a topic of constant attention. The Sun is variable and its variability is better grasped when accounted by time series of scalar values. Among those, the Total Solar Irradiance holds a special status given its chief relevance to both solar physics and to solar forcing in the heliosphere.
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Since solar irradiance is not constant, it has become a topic of constant attention. The Sun is variable and its variability is better grasped when accounted by time series of scalar values. Among those, the Total Solar Irradiance holds a special status given its chief relevance to both solar physics and to solar forcing in the heliosphere.
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Clustering of Solar Irradiance
2015The development of grid-connected photovoltaic power systems leads to new challenges. The short or medium term prediction of the solar irradiance is definitively a solution to reduce the storage capacities and, as a result, authorizes to increase the penetration of the photovoltaic units on the power grid.
Bessafi, Miloud +9 more
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Total Solar Irradiance Observations
Surveys in Geophysics, 2011The record of total solar irradiance (TSI) during the past 35 years has overlapping observations from space which can be merged to a composite, and three are available, namely the PMOD, the ACRIM and the IRMB composites. There are important differences between them, which are discussed in detail in order to find the best representation of solar ...
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2016
The importance of the reliable solar spectral irradiance (SSI) data for solar and climate physics is now well acknowledged. In particular, the irradiance time series are necessary for most of the current studies concerning climate evolution. However, space instruments are vulnerable to the degradation due to the environment while ground based ...
Thuillier, Gérard +6 more
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The importance of the reliable solar spectral irradiance (SSI) data for solar and climate physics is now well acknowledged. In particular, the irradiance time series are necessary for most of the current studies concerning climate evolution. However, space instruments are vulnerable to the degradation due to the environment while ground based ...
Thuillier, Gérard +6 more
openaire +1 more source