EngineeringToolkit

Convection Heat Transfer Formula

Heat transfer rate between a surface and a moving fluid.

Formula

q = hAΔT

Discipline: Thermodynamics. Result unit: W.

Variables and units

  • q — Heat Transfer Rate (W): Convective heat transfer rate
  • h — Heat Transfer Coefficient (W/(m²·K)): Convective heat transfer coefficient
  • A — Surface Area (m²): Heat transfer surface area
  • ΔT — Temperature Difference (K): Temperature difference between surface and fluid