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Thermal Physics · heat transfer

Thermal Conduction Rate

Gives steady heat-transfer rate through a uniform material.

P = kAΔT / ℓ

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Variables

P
heat-transfer rateW
k
thermal conductivityW/(m·K)
A
cross-sectional aream²
ΔT
temperature differenceK
ℓ
material thicknessm

Conditions / notes

Assumes one-dimensional steady conduction with constant k.

Reference details

Subject
Thermal Physics
Topic
heat transfer
Plain text
P = k A delta T / l

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