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U.S. Department of Energy
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ASHMET: a computer code for estimating insolation incident on tilted surfaces

Technical Report ·
DOI:https://doi.org/10.2172/5250765· OSTI ID:5250765

A computer code, ASHMET, has been developed by MSFC to estimate the amount of solar insolation incident on the surfaces of solar collectors. Both tracking and fixed-position collectors have been included. Climatological data for 248 US locations are built into the code. This report describes the methodology of the code, and its input and output. The basic methodology used by ASHMET is the ASHRAE clear-day insolation relationships modified by a clearness index derived from SOLMET-measured solar radiation data to a horizontal surface.

Research Organization:
National Aeronautics and Space Administration, Huntsville, AL (USA). George C. Marshall Space Flight Center
DOE Contract Number:
AI01-76CS31037
OSTI ID:
5250765
Report Number(s):
DOE/NASA/TM-78286
Country of Publication:
United States
Language:
English

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