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AW: [EnergyPlus_Support] E+ stops "Autosizing" by causing a failure
Isidor,
Be careful when applying the "autosize" option and using the IDF Editor.
The present editor does not offer the selection of autosize. So, in the
IDF Editor, autosized data appears as 0, while in the text editor this
data is specified by the text "autosize".
I hope I could help.
Alexander
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DI (FH) Alexander Beisteiner
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Von: Isidor Giglmayr [mailto:isidor.giglmayr@xxxxxxxxxxxxxxxxxxxxx]
Gesendet: Montag, 24. Februar 2003 11:23
An: EnergyPlus_Support@xxxxxxxxxxxxxxx
Betreff: [EnergyPlus_Support] E+ stops "Autosizing" by causing a failure
Dear all,
I'm using the autosize functions to design my HVACs required flows and
power. I build up a model similar to one of the attached in the examples
(5ZoneAutoDXVAV.idf). Using the original file all runs quite well for
the first time but not in mine. I put in zero for the values "Rated
Total Cooling Capacity" and "Rated Air Volume Flow Rate" for my
"COIL:DX:CoolingBypassFactorEmpirical" and got the following errors:
** Severe ** Out of range value Numeric Field#1 (Rated Total Cooling
Capacity (gross)), value=0.00000, range={>0.0}, in
COIL:DX:COOLINGBYPASSFACTOREMPIRICAL=MAIN COOLING COIL ZONE001
** Severe ** Out of range value Numeric Field#4 (Rated Air Volume
Flow Rate), value=0.00000, range={>0.0}, in
COIL:DX:COOLINGBYPASSFACTOREMPIRICAL=MAIN COOLING COIL ZONE001
Putting in vales the simulation (autosizing) starts, but I think
therefore they shall be zero as mentioned in the script. Nevertheless I
got a second failure:
** Fatal ** Air Primary Loop DIRECT HEATING AIR LOOP ZONE001 has no
air flow
I stopped with my model and turned back to the origin example (attached
in E+) changed the zero values at the COIL:DX there to some possible
real values (> 0), made a simulation and turned the values back to zero.
Now I got the same error message I got for my model. Once you change the
origin the model fails for all runs with zero as an input.
So have a nice start in this week.
Kind regards
Isidor
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