Conduction Rate Equation

Reference from the original Physics I textbook.

Conduction Rate Equation

$P_{c o n d u c t i o n} = \frac{Q}{t} = k A \frac{T_{H} - T_{C}}{L}$

$P_{c o n d u c t i o n} = Conduction Rate (Watt)$
$k = Thermal Conductivity (Watts/m \cdot K)$
$A = Area (m^{2})$
$T_{H} = Temeperature of Hot Side (^{\circ} C)$
$T_{C} = Temeperature of Cold Side (^{\circ} C)$
$L = Length of Material (m)$
$t = Time (s)$

[ $1 Watt = Joules/s$ ]

Figure7.3.1 2 — details in the accompanying text.

Related Glossary Terms

Conductionⓘ, Conduction Rate with Steady-State Equation, Steady-State, Table 7.3.1: Material Conductivities, Thermal Conductivityⓘ, Thermal Resistance, Thermal Resistance Equation

Index

Chapter 7 - Heat Transfer

Chapter 7 - FFR - Thermal Expansion

Glossary and deeper reading · 2 refreshers

These editorial refreshers supplement the reading. Definitions and examples are added guidance; original source wording and recorded answers remain in their original context.

Thermal conduction
Thermal conduction transfers energy through microscopic interactions without bulk flow of the material. Particles and, in metals, mobile electrons can carry energy from hotter regions toward cooler regions. For example, the handle of a metal spoon warms when its other end is placed in hot water.
Read more: Conduction →
Thermal conductivity
Thermal conductivity measures how readily a material conducts energy through a temperature gradient. It is a material property with units watts per meter per kelvin, distinct from the sample’s heat capacity or thickness. For example, a metal and an insulating foam slab of the same dimensions can have very different conduction rates.
Read more: Thermal conductivity in detail →

Conduction Rate Equation

Thermal conduction

Thermal conductivity

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