NASA NTRS · 19850024091
Predicting photothermal field performance
Abstract
Photothermal field performance in flat plate solar collectors was predicted. An analytical model which incorporates the measured dependency between transmittance loss and UV and temperature exposure levels was developed. The model uses SOLMET weather data extrapolated to 30 years for various sites and module mounting configurations. It is concluded that the temperature is the key to photothermally induced transmittance loss. The sensitivity of transmittance loss to UV level is nonlinear with minimum in curve near one sun. The ethylene vinyl acetate (EVA) results are consistent with 30 year life allocation.
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Gonzalez, C. C., Ross, R. G., Jr.. 1984-10-01. Predicting photothermal field performance. https://ntrs.nasa.gov/citations/19850024091
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