[Bldg-sim] Occupancy

[Cheney]

Hello all,


The ‘best case scenario’ is to match the room-by-room peak occupancy numbers
with the total building ones by adjusting hourly schedules which would be
fairly complicated to ensure the total building occupants can be distributed
in different rooms but remain the same all the time.



In reality, the objectives of estimating either room-by-room peak numbers or
overall building numbers vary according to disciplines. Architects may have
concerns over spatial constrain while mechanical engineers will worry about
system size, peak loads and energy requirements. When it comes to modeling,
my understanding is to see the issue mainly from mechanical design point of
view:



   - The room-by-room peak occupancy numbers govern ventilation rate and
   size of cooling system. Managing to ask mechanical designers to verify the
   numbers provided by architects and running the load calculation with respect
   to these numbers.
   - On the other hand, the overall building numbers, as one of internal
   heat sources, have impact on the overall building energy requirements.
   Architects or building owners may have better idea of how many they would be
   and there is little room to change the figures by engineers. Running energy
   simulation with respect to these numbers. Scale the room-by-room numbers
   down to match the overall building numbers is acceptable at this point.


  Regards,

Cheney

LinkedIN @ http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b
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