Solar array performance variation due to particle light obscuration/scattering and radiation loss through a multi-layered substrate

Conference · Wed Jul 01 00:00:00 EDT 1992

OSTI ID:7244497

Fong, M C; Lee, A L ^[1]

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1. Lockheed Missiles and Space Co., Inc., Sunnyvale, CA (United States)

An analytical procedure has been developed to predict the solar array (S/A) performance variation caused by the combined effects of surface particle light obscuration/scattering and radiation loss through a multilayered substrate. In this analysis, the S/A particulate contamination solution involves determining two light propagation quantities: the bidirectional transmittance distribution function (BTDF) due to surface particle and the Fresnel coefficients for the S/A surface. The results show that for a severe case where the particle obscuration on the solar cell surfaces is 5.99 percent (equivalent cleanliness level of 940 per MIL-STD-1246B), the net power loss is predicted to be 4.0 percent. Comparisons of the predicted power loss to solar cell samples exposed to particle fallout show good agreements. 11 refs.

• OSTI ID: 7244497
• Report Number(s): AIAA-Paper--92-2936; CONF-9207154--
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
CALCULATION METHODS
EFFICIENCY
ELECTROMAGNETIC RADIATION
ENERGY EFFICIENCY
ENERGY LOSSES
EQUIPMENT
LIGHT SCATTERING
LIGHT TRANSMISSION
LOSSES
OPACITY
OPTICAL PROPERTIES
PARTICLES
PARTICULATES
PERFORMANCE
PHYSICAL PROPERTIES
POWER LOSSES
RADIATIONS
SCATTERING
SOLAR CELL ARRAYS
SOLAR EQUIPMENT
SOLAR FLUX
SUBSTRATES
VARIATIONS
WAVE PROPAGATION