Huge BER in Apache but not in SBEM
Posted: Wed Nov 27, 2013 1:40 pm
I have inherited a model which has the ceiling void modeled as separate spaces as internal voids.
I originally ran the model under SBEM and have a BER of 22.8
As the model has atria and is rather complex APache is required
Running exactly the same model in apachesim i have a BER of 180ish. (excusively caused by an increase in the heating demand)
Since then, I have done some sleuthing and tried taking out aux ventilation encase it had been duplicated and got the BER down to 150. ( I suspect this is not the issue)
Further investigation led me to the conclusion that it is related to the internal voids.
Before I go ahead and spend time merging rooms and changing inner volume representation and ceiling void cavity size.
Has anybody else experienced an issue like this and I am missing something blindingly obvious?
I originally ran the model under SBEM and have a BER of 22.8
As the model has atria and is rather complex APache is required
Running exactly the same model in apachesim i have a BER of 180ish. (excusively caused by an increase in the heating demand)
Since then, I have done some sleuthing and tried taking out aux ventilation encase it had been duplicated and got the BER down to 150. ( I suspect this is not the issue)
Further investigation led me to the conclusion that it is related to the internal voids.
Before I go ahead and spend time merging rooms and changing inner volume representation and ceiling void cavity size.
Has anybody else experienced an issue like this and I am missing something blindingly obvious?
