Solar Energy Engineering

APPENDIX 4

Terrestrial Spectral Irradiance

Absorbance, reflectance, and transmittance of terrestrial solar energy are important factors in solar thermal system performance, photovoltaic system performance, materials studies, biomass studies, and solar simulation activities. These optical properties are normally functions of wavelength, which requires that the spectral distribution of the solar flux be known before the solar weighted property can be calculated. To compare the performance of competitive products, a reference standard solar spectral irradiance distribution is desirable. Table A4.1, given in this appendix, is constructed from data contained in ISO 9845-1:1992, Reference Solar Spectral Irradiance at the Ground at Different Receiving ...