HL BS
It is possible to
indicate air flows in the rooms in the most detailed case. In Vabi Elements
these are modelled as air flows through building parts (optionally also through
exterior parts, i.e. to outside). The natural or mechanical supply or exhaust of
the room is modified to account for every building part which delivers
additional air exchange (supply and/or exhaust to/from an adjacent room).
If a room contains both supply and exhaust through building parts, these flows
are not settled first.
|
Supply/ exhaust |
Supply |
Exhaust |
Remark |
|
Outside |
TV - SAE |
0 |
Calculated to correct the balance. |
|
Mechanical |
0 |
TV - EAE |
Calculated to correct the balance. |
|
Air Exchange |
SAE |
EAE |
Specified in building parts, and summed |
|
Total ventilation |
TV |
TV |
Specified in ventilation template |
Table19: Example of level space for mechanical
ventilation and natural supply
(TV = total ventilation; SAE = supply air
exchange; EAE = exhaust air exchange)
The temperature of the exchanged air follows from other data:
•With outside: the climate data at ambient level are used;
•With an adjacent room: the design temperatures (for heat loss and cooling load) of the other room, or the realised temperature (for building simulation) of the other room are used;
•With ground the ground data at building level is used (unless overridden on building part level);
•In other conditions: the conditions as specified on building part level are used.
