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Andy Tindale
Posts: 2432
Location: Stroud |
 Posted: Fri Dec 07, 2007 5:37 pm Post subject: |
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After some research, the problem with your high solar gains 'through the wall' is resolved by switching on Reflections on the Model options dialog under Solar settings.
Notes added to documentation for the next release:
| Documentation wrote: | Reflection from the ground is calculated even if the Reflections option is not used, but if Reflections are not calculated the ground plane is considered unobstructed, i.e., the shadowing of the ground by the building itself or by component blocks is
ignored.
Shadowing of the ground by component blocks is only taken into account if the Reflections option is used.
Conclusion: Switch Reflections on for accurate shading calculations. |
Andy
| Description: |
| I've attached a modified version of your model with wall (using a flat component block instead of a block in another building). Please get the new release to run it. |
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| Filename: |
firkanta bygning og mur.dsb |
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1.07 MB |
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Andy Tindale
Posts: 2432
Location: Stroud |
| Posted: Sat Dec 08, 2007 2:18 pm Post subject: |
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Just to let you know, the previous fix for Glazing gains only worked at building level but we have since corrected it in v.1.4.0.038.
Andy
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espenlok
Posts: 21
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| Posted: Tue Dec 11, 2007 4:52 pm Post subject: |
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Thanks! The solar calculations now seem very probable. Not sure why it didn't work in the same way when I put a building in front of the wall in stead of the flat componet block, but it really doesn't matter. I now know how to make shadows that is represented in the calculations.
Thank you for your help!
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Andy Tindale
Posts: 2432
Location: Stroud |
| Posted: Sat Dec 15, 2007 5:33 pm Post subject: |
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The wall would have worked, the reason you get correct shading with the new model is that the 'Reflection' option was switched on.
I changed from 'wall in other building' to 'Flat Component block' because a) flat component blocks only generate a single shading surface whereas a block in another building would generate 4 so simulations are more efficient and b) it isn't possible in v.1 to snap objects in one building to objects in another building so precise positioning of the wall isn't possible.
Andy
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