Heat Conduction

Unit 4

Heat Conduction

Juan Juan
1 min read

Heat conduction (or thermal conduction) is the transfer of heat through a material.

Heat particles flow from the hotter part of the object where there is higher density of heat particles, to the cooler part where there are less.

This is the nature of the radiant layer which radiates from high density to low density.

Unlike Physics which pegs the cause to electrons flowing, Material Superphysics pegs the cause to heat particles which can affect electrons.

The Equation Interpreted in Cartesian

`Q = -k · A · (ΔT / Δx)``

  • Q = Heat transfer rate (watts) – this is the flow of heat particles
  • k = Thermal conductivity of the material (how well it conducts) – this is the aetherspace of matter
  • A = Cross-sectional area
  • ΔT = Temperature difference – this is the heat density difference
  • Δx = Thickness (distance heat must travel)

A high k means a good conductor (e.g., metal) from having few space particles.

A low k means a good insulator (e.g., wood, plastic) from having a lot of space particles.

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