No, interior surfaces don’t really have to be collocated for them to be thermally connected in the simulation. You can have one set of Z-coords for the ground floor, and another set for the multiplied floor. The surface’s areas need to conform to each other, but they can be separated in 3D space.
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Vinay Devanathan
Sent: Wednesday, December 22, 2010 3:50 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Floor Multipliers
Thanks for your reply, Brent.
When you say the Z-coordinate should be an average, I would still have to match that Z-coordinate with the roof/ceiling of my zone underneath I suppose. So in that case, my lower most floor is affected?
On Wed, Dec 22, 2010 at 5:28 PM, Griffith, Brent <brent.griffith@xxxxxxxx> wrote:
The geometry stays where it is described.
For a high rise buildings so the z-coordinates for the multiplied floor should be an average for all floors being modeled. Unless there are neighboring buildings that are shading yours, the solar affects are not adjusted for height. However, the outdoor air temperatures and wind speeds are adjusted for height and these can be significant for really tall buildings.
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