smeredith Posted February 13 Share Posted February 13 I noticed something about bifacial simulations for trackers that I think is an error. If you calculate the sky diffuse view factor on the rear side, you'll notice that the view factor is different depending on whether the module has a positive or negative tilt (PhiAng). Below is a graph showing the view factor as a function of tilt for GCR = 0.5. As you can see, the view factor is always higher for negative tilts compared to positive tilts. This behavior seems to be consistent across all GCRs. I was wondering if this was intended behavior or if this is an error - to me, it doesn't make sense that the view factor would be different depending on if the tracker was facing east or west. Link to comment Share on other sites More sharing options...
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