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Heat Sources and Convective Air Flows

Convective air flows from some common heat sources - people, computers, radiators and more

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The below can used as an indication of the convective heat flow some common heat sources generates.

Source		Convective Air Flow liter/sec
Source		1.1 m above floor	1.8 m above floor
Room with height < 3 m	People, sitting relaxed	15 - 20	40 - 50
	People, sitting working	15 - 20	40 - 50
	People, standing working	15 - 20	40 - 50
	Fax	15 - 20	30 - 40
	Table lamp, fluorescent tube	3 - 5	10 - 15
	Table lamp, bulb	10 - 15	25 - 30
	PC	15 - 20	40 - 50
	Copy machine	15 - 30	40 - 70
	Window /m²	3 - 5	3 - 5
	Radiator	5 - 10	5 - 10
Room with height > 3 m	People, sitting relaxed	15 - 20	40 - 50
	People, sitting working	15 - 20	40 - 50
	People, standing working	15 - 20	40 - 50
	Over head projector	20 - 30	60 - 70
	TV and video	20 - 30	50 - 60
	Window /m²	3 - 5	3 - 5
	Radiator	5 - 10	5 - 10
Industry	People, moderate work		40 - 50
	People, heavy work		40 - 50
	Welding machine		100 - 150