Heat Transfer (3 modes)

More about: Heat Transfer (3 modes)

What it calculates

The “Heat Transfer (3 modes)” calculator computes Total heat flow in W from 7 parameters: area (m²), hot surface temperature (°C), ambient temperature (°C), layer thickness (conduction) (m), material thermal conductivity (W/(m·K)), heat transfer coefficient (convection) (W/(m²·K)), emissivity (radiation).

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters Area = 1 m², Hot surface temperature = 60 °C, Ambient temperature = 20 °C, Layer thickness (conduction) = 0.1 m, Material thermal conductivity = 0.8 W/(m·K), Heat transfer coefficient (convection) = 10 W/(m²·K), Emissivity (radiation) = 0.9 the result is 971.77 W (The total applies if all three heat paths act in parallel).

How to use

1. Enter area, hot surface temperature, ambient temperature, layer thickness (conduction), material thermal conductivity, heat transfer coefficient (convection) and emissivity (radiation) — each field above is adjustable with a slider.
2. Total heat flow (W) is calculated automatically as you type.
3. Check the worked example below to see the formula applied to real numbers.
4. Copy the result or bookmark this calculator.

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