heat flow
Energy moving naturally
Heat flow is the transfer of thermal energy from a warmer region to a cooler one.
In physics and engineering, it's measured as the rate at which heat moves through a material or across a boundary: The heat flow through the wall depends on insulation thickness.
Geologists use the term for thermal energy escaping from Earth's interior to its surface.
- conductionHeat transfer through contact
- convectionHeat transfer via motion
- geothermal energyHeat harvested from underground
- hot spotArea of intense activity
- calorimeterInstrument measuring heat transfer
thermal mass · thermodynamics · cooling system · radiation · phase change · climate systems · entropy · steady-state · thermometer · lithosphere · transfer · thermal expansion · thermal · dissipation · warmth · temperature · diffusion · flux
heat flowheat loss
Warmth leaving a system
heat dissipation · cooling · heat absorption · heat sink · refrigeration
heat flowthermal equilibrium
Equal temperature throughout system
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