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Convective transfert de chaleur

Reference data et engineering information about convective transfert de chaleur pour transfert de chaleur applications.

convectiveheattransferCalculatrice

Overview

Engineering reference data for Convective Heat Transfer in heat transfer.

Key Formulas

Fourier's Law

q=kTq = -k \nabla T

Heat flux proportional to temperature gradient.

Convective Heat Transfer

Q=hA(TsT)Q = hA(T_s - T_\infty)

Heat transfer between surface and fluid.

Stefan-Boltzmann Law

q=εσT4q = \varepsilon \sigma T^4

Radiative heat flux from a surface.

Thermal Resistance

Rth=LkAR_{th} = \frac{L}{kA}

Resistance to heat conduction.

Variables

SymbolDescriptionUnit
qqHeat fluxW/m²
kkThermal conductivityW/(m·K)
hhConvection coefficientW/(m²·K)
TTTemperatureK
ε\varepsilonEmissivity
σ\sigmaStefan-Boltzmann constant5.67×10⁻⁸ W/(m²·K⁴)

References