Convection

Typical Transfer Coefficient Values

Typical heat transfer coefficient (\(h\)) values in W/(m2.K) are given below:

Free convection gases: 2 –­ 25
liquids: 50 – 100
Forced convection gases: 25 –­ 250
liquids: 50 –­ 20,000
Boiling/Condensation 2500 – ­100,000

 

Boiling water has a higher heat transfer coefficient than subcooled water.