I don’t know what “drop down”
list you refer to. The output variables available for a particular model are
reported to the RDD file, so open the *.rdd text file from a previous run to
see what can be reported. Zone Mean Air Temperature is the name of one of
the output variables and is requested like this,
Output:Variable,*,Zone Mean Air
Temperature,hourly; !- Zone Average [C]
You’ll need some kind of HVAC system,
unless you want to model free floating indoor conditions,.
From:
Sent: Wednesday, October 28, 2009
5:16 PM
To:
Subject: RE: [EnergyPlus_Support]
Two-three different outside conditions (weather data)
Wow, this is what I call superfast response.
Have you read my question at the very about zone temperature
outputs? Do I need to setup some heating device, or schedule for it?
Danko Davidovic
Staff II - Building Technology
SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9260 direct
781.907.9009 fax
www.sgh.com
From:
Sent: Wednesday, October 28, 2009
7:12 PM
To:
Subject: RE: [EnergyPlus_
Interesting application and just the sort of thing
OtherSideCoefficien
1. yes
2. no, you put in the name of the OSC, XYZ in your case
3..9 yes
10. file should have single columns of 8760 data for each
separate schedule.
11. yes.
12. the name of the schedule can include the full path.
From:
Sent: Wednesday, October 28, 2009
4:43 PM
To:
Subject: RE: [EnergyPlus_
Hi Griffith,
Thanks for your prompt answer. Trying to summarize the
steps I need to accomplish this:
1.
For particular building surface description in: Outside Boundary
Condition I select OtherSideCoefficien
2.
Do I leave blank Outside Boundary Condition Object then?
3.
In Advance Surface Concepts I select SurfaceProperty:
OtherSIdeCoefficien
4.
Add Object there and Name it: XYZ
5.
I leave blank Combined Convective/Radiativ
Here is description how it is calculated:
“This object sets the other side conditions for a surface
in a variety of ways.
if>0, this field becomes the exterior
convective/radiativ
ID: N1
No default value available
This field is required.”
6.
Set Up Constant Temperature field to zero for example (Default
value)
7.
Select my Temp Profile from: Constant Temperature Schedule Name
in the drop list.
8.
In the Schedule:File I create previously my Temp Profile.
9.
File Name: I write the name of the file where the temperatures
are written.
10. In which
format I should have this text file created (two columns: hour and temps, or
one column only with temperatures for 8760 hours)
11. Adjust the
Column Separator accordingly to my input file..
12. I assume
this file should be located in the same folder with .idf file cause I
don’t see anywhere to enter to the path to the file.
Am I missing something, and should this procedure work out (not
to be overridden by the algorithm for surface temp)? Do I need to set up zeros
for all other coefficients just to be sure the other parameters are not used.
To explain a little bit the problem I am working on. I am trying
to calculate the interior temperatures for some huge underground structure with
various levels of ventilation rates (no heating or cooling). I use other
software where I created the underground structure with surrounding soil and
enter the calculated temps for interior air space from Energy plus. Then I use
the output from that software on the outside boundary of my shell and average
them for each level of my structure and enter those values as outside surface
temperatures for each exterior wall. I repeat this procedure several times
until I get reasonable match between the interior temps and outside surface
temps between these two programs. I specified the ventilation rates through
zone ventilation objects where I assign 24/7 schedule and air changes per hour for
each zone.
I have the following problem: when I go to select the output
variable I don’t see a list of zone temperatures (the drop list is
blank). Do I need to specify any type of heating system or something in order
to get this output properly.
Sorry for asking you all these questions, I am relatively new to
text input editor and want to make sure I am doing everything right.
Thanks one more time for your quick feedback on my question.
Have a great evening.
Danko Davidovic
Staff II - Building Technology
SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9260 direct
781.907.9009 fax
www.sgh.com
From:
Sent: Wednesday, October 28, 2009
4:41 PM
To:
Subject: RE: [EnergyPlus_
The input object SurfaceProperty:
From:
Sent: Wednesday, October 28, 2009
2:33 PM
To:
Subject: [EnergyPlus_
I am
trying to couple EnergyPlus model with other software that gives
me the temperatures on the outside surface of my building shell. Is there anyway
to input these temperatures into Energy Plus as separate weather file or
additional fake zone with user defined temperature profile for whole year?
Would appreciate any suggestions.
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