Thiébault Posted March 8, 2017 Share Posted March 8, 2017 Good morning PVsysters,I have a question regarding the thermal loss factors. From your experience, which values should be considered when simulating a mounting system that is integrated but also with an air duct behind ? For example, a system similar to the "Easy Roof" solution: modules are in the same plane as the roof (integrated) but there is a 2-3cm wide air duct behind. Modules are not "fully insulated", but also not as ventilated as non-integrated roof-mounted systems.Should I tick the "integrated" box, the "semi-integrated" box, or are there Uc/Uv middle-ground values that should be used ?Thank you for your consideration. Link to comment Share on other sites More sharing options...
André Mermoud Posted March 8, 2017 Share Posted March 8, 2017 Please see the Help "Project design > Array and system losses > Array Thermal losses".However with a spacing of 3 cm, you don't have any air circulation and heat exchange (or a negligible one), and you can consider your PV array as back insulated. Link to comment Share on other sites More sharing options...
Thiébault Posted March 8, 2017 Author Share Posted March 8, 2017 Thank you for your feedback. I had looked at the Help but needed to make sure, and your answer confirms what I got from it. Link to comment Share on other sites More sharing options...
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