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[EnergyPlus_Support] ASHRAE 90.1 Opaque Door
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- Subject: [EnergyPlus_Support] ASHRAE 90.1 Opaque Door
- From: <seanking.1970@xxxxxxxxxxx>
- Date: 08 Oct 2013 14:17:44 -0700
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- Delivery-date: Tue, 08 Oct 2013 15:17:46 -0600
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Hi,
If I want to model an opaque door in a LEED project, does U-factors in relation to these doors include surface resistances when calculating them? If yes, some cases would not be possible. For example, climate zone 4 nonswinging door U-factor for semiheated category is 8.233, total resistance is therefore 1/8.233 = 0.1215, which is smaller than total surface resistance (0.12+0.03=0.15) (see Page 102, A9.4.1 section). It supposes the U-factor calculation does not include those surface resistances, is it right?
Thanks.
Sean
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