THE SHADING EFFECT CAUSED BY OPAQUE SOLAR PANEL INTEGRATED WITH AGRICULTURAL GREENHOUSE (PO98,1157-1162) PDF

A pilot study was carried out to explore the shading effect brought by opaque solar panel with four different layouts on the quantity of daylighting in greenhouse. Semi-physical simulations using mock-ups have been performed in a 15-metre-diametre heliodon system. The shading effect of four layouts were studied on equinox day at latitude 40° at 20 measuring points in an interval of 30 minutes. Illuminances were collected as raw data to obtain daylight factors. The results suggested that daylight factors of the 'horizontal' layout are significantly lower. It was also found that the direct sunlight illuminated on the first two rows is significantly lower than the other two rows in all four layouts. An initial conclusion can be drawn from the results of this pilot study: 'horizontal' layout of PV panels should be avoided to enable better lighting for plants when integrated with greenhouse.

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Number of Pages :	7
Published :	10/23/2017