Adding ducts to unconditioned attic

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zekk828
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Joined: Tue Jun 23, 2020 11:16 am -1100

Adding ducts to unconditioned attic

Post by zekk828 » Mon Jul 13, 2020 10:40 am -1100

Is it possible to add ducts to a location outside the conditioned space (e.g., attic) by somehow:
-Adding a small amount of air exchange (duct leakage) when space-conditioning is called for
-Accounting for duct (and insulation) surface temperature, which would be dependent on space-conditioning schedule

Essentially, I want to account for the heat/coolth and additional moisture added to the attic from these ducts.

I could create rectangular ducts in SketchUp if necessary, but this would still not address the schedule of space-conditioning or conditions within the ducts. Do I have to run the simulation and then use the outputs of the HVAC runtime to create this new schedule? Any simplified methods?


Last bumped by zekk828 on Mon Jul 13, 2020 10:40 am -1100.

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