Convective Air Flows from Typical Heat Sources

Convective air flows from typical heat sources like people, computers, radiators and more.

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The table below indicates the convective heat flow generated by some common heat sources.

Source		Convective Air Flow (liter/sec) Load Calculator!
Source		1.1 m (3.5 ft) above floor	1.8 m (6 ft) 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

Convective Air Flow - Single Heat Source - Calculate the vertical air flow and air velocity generated by a single heat source.
Convective Heat Transfer - Heat transfer between a solid and a moving fluid is called convection. This is a short tutorial about convective heat transfer.
Convective Heat Transmission - Air Velocity and Air Flow Volume - Hot or cold vertical surfaces generates vertical air flows - calculate air velocity and volume flow.
Fluid Heat Transfer Coefficients in Heat Exchanger Surface Combinations - Average overall heat transmission coefficients for fluid and surface combinations like Water to Air, Water to Water, Air to Air, Steam to Water and more.
Overall Heat Transfer Coefficients - Walls or heat exchangers - calculate overall heat transfer coefficients.