Calculation of monthly average insolation on tilted surfaces
Conference
·
OSTI ID:7127276
Several simplified design procedures for solar energy systems require monthly average meteorological data. Monthly average daily totals of the solar radiation incident on a horizontal surface are available. However, radiation data on tilted surfaces, required by the design procedures, are generally not available. A simple method of estimating the average daily radiation for each calendar month on surfaces facing directly towards the equator has been presented by Liu and Jordan. This method is verified with experimental measurements and extended to allow calculation of monthly average radiation on surfaces of a wide range of orientations. The results are presented in analytic and in tabular form for latitudes ranging from 25/sup 0/ to 55/sup 0/, surface azimuth angles of +-45/sup 0/, and for collector slopes within the range of practical interest.
- Research Organization:
- Wisconsin Univ., Madison (USA). Solar Energy Lab.
- OSTI ID:
- 7127276
- Report Number(s):
- CONF-760842-15
- Country of Publication:
- United States
- Language:
- English
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