🔥 Thermal Engineering
Heat Transfer Calculator
Calculate heat transfer through conduction, convection, and radiation modes.
Transfer Mode
Thermal Conductivity (k)
W/m·K
Material thermal conductivity
Area (A)
m²
Surface area perpendicular to heat flow
Temperature Difference (ΔT)
K
Hot side − Cold side temperature difference
Thickness (L)
m
Material thickness in the direction of heat flow
Heat
0%
Heat Transfer Rate
0 W
energy per second
Transfer Mode
Conduction
Thermal Resistance
0 K/W
Heat Flux
0 W/m²
Material
Aluminum
📐 Heat Transfer Formulas
Q = k·A·ΔT / L
Conduction (Fourier's Law)
Q = h·A·ΔT
Convection (Newton's Law)
Q = ε·σ·A·(T₁⁴ − T₂⁴)
Radiation (Stefan-Boltzmann)
R = L / (k·A)
Thermal Resistance
📊 Calculation Breakdown
| Parameter | Value | Description |
|---|
How the formula works
Conduction: Q = k·A·ΔT/L | Convection: Q = h·A·ΔT | Radiation: Q = ε·σ·A·(T₁⁴ − T₂⁴)
- Conduction = Heat transfer through solid materials
- Convection = Heat transfer between surface and moving fluid
- Radiation = Heat transfer through electromagnetic waves
- σ = Stefan-Boltzmann constant (5.67 × 10⁻⁸ W/m²·K⁴)
- Thermal Resistance = L / (k·A) for conduction