The Zehnder ZBN product achieves an energy saving potential of 44.5% compared to other systems, such as an air heater.
Basic conditions:
Hall height 20 m, room temperature regulation for both systems via PI regulators, air distribution at a normal induction ratio, lateral air outlet.
Calculation:
For the radiant ceiling panels, this gives a factor of:
For an air heating system, this gives a factor of:
additional monthly expenditure of heat transfer
monthly heat required, in kWh/mth
Hydraulic balancing factor
Intermittent operation factor
Factor for effect of radiance
Overall efficiency of heat transfer in room
Partial efficiency for vertical air temperature profile
Partial efficiency for room temperature regulation
Partial efficiency for specific losses from external structures
