sunpeek.core_methods.common.shading.calc_sloped_shading_fraction

sunpeek.core_methods.common.shading.calc_sloped_shading_fraction(collector_tilt, collector_azimuth, collector_gross_length, collector_row_spacing, ground_tilt, ground_azimuth, sun_azimuth, sun_apparent_elevation)

Calculate shading fraction of beam shading for parallel collector rows on sloped ground.

:param Are documented in calc_sloped_shading():

Returns:

sf – Shading height is height of shaded collector part, measured from bottom to top, up along collector slant height. sf is the relative shading fraction, that is: Shadow height divided by collector gross length.

Return type:

pd.Series

Notes

Note that this calculation allows collector and ground orientation (tilt, azimuth) to be different. See also references in _calc method.

References

[1]

Bany, J. and Appelbaum, J. (1987): “The effect of shading on the design of a field of solar collectors”, Solar Cells 20, p. 201 - 228 :doi:`https://doi.org/10.1016/0379-6787(87)90029-9`