Today I noticed that ventilation values assigned with native building programs seem very low.
I would like to mention here I live in Europe so the diffrences may be the source of this confusion.
Let’s assume I am to analyze an office zone (with one person/10m2) with area of 100 m2. Assigning default OpenOffice program to a zone gives these values:
VentilationPerArea - 0.000305 m3/s per m2
VentilationPerPerson - 0.0024 m3/s
That would be 0.000305[m3/s]*100[m2] + 0.0024[m3/s]*10people = 0.0305+0.024 = 0.0545 m3/s in total. That is around 196 m3/hour
In european norms the value is said to be around 36 m3/h per person required. Because we have a 100m2 room with 1person/10meters - that would mean 360 m3/hour for mentioned space.
The amount of supplied air is almost 2 times bigger. I wonder if the difference comes just from differences in norms (ASHRAE vs European) or I have gotten something wrong or maybe the values in HB Building programs are lowered?
If found this discussion and post by @minggangyin. After converting liters/s to m3/s the values seem similar to ones used in Honeybee presets. I am surprised that it is required to supply 2 times more air in Europe than in USA.
Has anyone else noticed that? Are my calculations/assumptions wrong somewhere?
Thank you for your time and help