[EnergyPlus_Support] Internal Mass approximations

["jvd2pe" <jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Dear E+ forum,  To date, I have not tried to combine zones on different
floors.  Instead, I model separate zones for each floor. As I begin a 12
story structure model, I realize that the energy model will produce
essentially the same results if I model, for example, the North zone on
all 12 floors as a single zone ... except that the combined 12 floors
have a lot more mass for floors, walls and furniture than a single zone.
It appears that the "InternalMass" object is a simple way to include
more mass and is easily done for floors.  I'm wondering: 1) Have others
used this approach? 2) How do you account for internal walls? furniture
and office equipment? 3) Any cautions?  Thanks in advance.



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