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Re: [EnergyPlus_Support] Geometry



If you modeled the floor and  the roof of zone 8 of the example file solarshadingtest.idf with two rectangles the message you get during simulation is "too many variables requested, will go with first 254" and the results you get in the spreadsheet are different.
 
Which is the best way to model the elevators room and exit stairs since they cross the entire building?
 
Does Energyplus accept negative coordinates for geometry?
 
There is an error in the idf editor.When you are giving the coordinates you can´t write e.g 9,2 or 9.2. In the first case when you save and returned later to work you will have 9 instead of 9,2.In the second case when you write 9.2 it appear 92 in the idf editor.But if you write 9..2 and then erase one . you don´t have that problem anymore.
It is only i that have this problem? 
 
Lourenço
----- Original Message -----
Sent: Monday, March 25, 2002 6:02 PM
Subject: Re: [EnergyPlus_Support] Geometry

Lourenço:

The floor of an L-shaped room can be modeled as two rectangles.  You
say the program didn't like that.  What error message did you get
when you tried that?

Subsurfaces must be rectangular, so your round window should be
modeled as a square of equivalent area.

Room volume is active and it is used to determine the thermal
capacitance of the room air.

Mike Witte


On 25 Mar 2002, at 11:16, nuno lourenço wrote:

> Hi,i am a portuguese student and started working with energyplus a couple of
> weeks ago.
>
> I have problems modeling the floor of an L shape room.The program only
> accept 3 or 4 vertices and i have 6.
> I tried to divide the floor into 2 rectangular parts with the same
> properties.The program "didn´t liked".
>
> I also have round windows and EP doesn´t have an option for that.
>
> Is the option to give the volume of a room ON?
>
> I thank if anyone could help me overcame this small problems.
>
> Lourenço
>
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