Selecting Ventilation System in Comfort Environments

A quick selection guide of ventilation system in comfort environments

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Type of building	Ventilation system	Ventilation principles and Cooling loads (W/m²)
Type of building	Ventilation system	Mixing	Displacement
Offices	CAV	0 - 20	10 - 30
	VAV	20 - 60	20 - 60
	Fan-coil	40 - 70
	Cooling ceiling	60 - 100	60 - 100
Hotels	CAV	0 - 20	10 - 30
	VAV	20 - 50	20 - 50
	Fan-coil	20 - 50
Hospitals	CAV	0 - 20	10 - 30
	VAV	20 - 60	20 - 60
	Cooling ceiling	60 - 100	60 - 100
Public buildings	CAV	0 - 20	10 - 30
Public buildings	VAV	20 - 60	20 - 60
Department stores	CAV	0 - 20
	VAV	20 - 80
	Fan-coil	40 - 100

Typical rooms and cooling loads	(W/m²)
Normal offices without automatic	0 - 30
Normal offices with automatic	30 - 50
Conference rooms	20 - 75
Data rooms	> 60
Guest rooms, normal standard	0 - 25
Guest rooms, high standard	25 - 50
Patients rooms	0 - 20
Treatment rooms	20 - 60
Intensive rooms	> 50
Conference rooms	20 - 75
Theatre, cinema	40 - 60
Restaurants	30 - 70
Class rooms	20 - 50
Food	20 - 40
Normal	30 - 60

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