Focone and focline concentration of radiation scattered by circumsolar parts of the sky

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Appl. Solar Energy (USSR) (Engl. Transl.); (United States)

OSTI ID:5596998

Baranov, V K

Using the laws governing the ability of parabolotoroidal focones and parabolocylindrical foclines to concentrate radiation of extended objects, as well as published data on radiation scattered by circum-solar zones of the sky, rough calculation has been made of the illumination set up by such concentrators in the plane of their minor aperture. The method presumes that concentrator axis is aimed at the Sun and that the circumsolar space takes the form of a cloudless sky for the first case, the sky extended by haze and light clouds in the second, and by dense opaque clouds in the third. It is shown that in the latter case the scattered radiation need not be taken into account, while the radiation scattered in the circumsolar zone by the sky and light clouds makes a noticeable contribution to the average density of the flux concentrated by foclines and focones. The difference in the spectral composition of direct and scattered solar radiation causes no noticeable changes in the efficiency of a silicon receiver having selective characteristics.

• OSTI ID: 5596998
• Journal Information: Appl. Solar Energy (USSR) (Engl. Transl.); (United States), Journal Name: Appl. Solar Energy (USSR) (Engl. Transl.); (United States) Vol. 13:4; ISSN ASOEA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
ALBEDO
BRIGHTNESS
CLOUD COVER
CLOUDS
DIFFUSE SOLAR RADIATION
DIRECT ENERGY CONVERTERS
EFFICIENCY
FUNCTIONS
LIGHT SCATTERING
MAIN SEQUENCE STARS
OPTICAL PROPERTIES
OPTICS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
RADIATIONS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR CONCENTRATORS
SOLAR FLUX
SOLAR RADIATION
SOLAR RECEIVERS
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
SPECTRALLY SELECTIVE SURFACES
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SUN
SURFACES