What is the formula for Heat Conduction Calculator (Fourier Q=kAΔT/L)?

Core formula: Q = k·A·ΔT / L. The tool returns results instantly using this formula and the selected parameters.

Heat Conduction Calculator (Fourier Q=kAΔT/L)

Compute steady heat conduction through a plate/wall via Fourier’s law Q = k·A·ΔT/L, with thermal resistance and heat flux per unit area.

Key points

Heat Conduction Calculator (Fourier Q=kAΔT/L): Compute steady heat conduction through a plate/wall via Fourier’s law Q = k·A·ΔT/L, with thermal resistance and heat flux per unit area. Formula: Q = k·A·ΔT / L. Enter parameters on the DD-CAT IDE online tool page to get results instantly, with a calculation-model diagram that updates with the inputs. Fourier's law of conduction: Q = k·A·ΔT/L, heat flows from high to low temperature; k is the material thermal conductivity. Thermal conductivity reference (W/(m·K)): copper 401, aluminum 237, steel ≈ 45, glass ≈ 1, water 0.6, air 0.026.

Inputs

Q = k·A·ΔT / L

Calculation model (updates with parameters)

Conduction heat flow Q	3.208 kW	Q = k·A·ΔT / L (flows from hot side to cold side)
Heat flux per unit area q	320.8 kW/m²W/m²	q = k·ΔT / L
Thermal resistance Rth	24.94 mK/WK/W	Rth = L / (k·A)
Temperature difference ΔT	80K

Engineering notes

Fourier's law of conduction: Q = k·A·ΔT/L, heat flows from high to low temperature; k is the material thermal conductivity.
Thermal conductivity reference (W/(m·K)): copper 401, aluminum 237, steel ≈ 45, glass ≈ 1, water 0.6, air 0.026.
Thermal resistance Rth = L/(k·A); resistances of multi-layer walls add in series (like electrical resistors).

FAQ

What is Heat Conduction Calculator (Fourier Q=kAΔT/L) for?: Compute steady heat conduction through a plate/wall via Fourier’s law Q = k·A·ΔT/L, with thermal resistance and heat flux per unit area.
What is the formula for Heat Conduction Calculator (Fourier Q=kAΔT/L)?: Core formula: Q = k·A·ΔT / L. The tool returns results instantly using this formula and the selected parameters.
What engineering notes should I keep in mind when using Heat Conduction Calculator (Fourier Q=kAΔT/L)?: Fourier's law of conduction: Q = k·A·ΔT/L, heat flows from high to low temperature; k is the material thermal conductivity. Thermal conductivity reference (W/(m·K)): copper 401, aluminum 237, steel ≈ 45, glass ≈ 1, water 0.6, air 0.026. Thermal resistance Rth = L/(k·A); resistances of multi-layer walls add in series (like electrical resistors).