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Heat Transfer:
Electrical Analogy
Electrical Analogy for 1D Heat Conduction
By comparing the steady state heat flow equation
with Ohm's Law for current flow through a resistor, we see that they
have similar forms,
We can therefore draw the following analogies:
Heat
Flow,
Current,
I
Temperature Difference, T1 -
T2
Voltage Difference,
V1 - V2
Thermal
Resistance, RT = Dx/k*A
Electrical
Resistance, R
The electrical to heat conduction analogy allows
one to apply laws from circuit theory to solve more complicated
conduction problems, such as the heat flow through conducting layers
attached in parallel or series.
