Circuit modeling to predict the performance of force-cooled cold plate structures

The electronic circuit simulator PSpice can provide the means of obtaining numerical nonanalytic solutions to thermal heat flow problems which would otherwise be difficult or impossible to derive. Rules for relating physical heat flow parameters to equivalent distributed lossy transmission line parameters are derived. This method for numerical evaluation of the heat dissipating performance of complicated fin structures forming cold-stacks is validated by comparison with recently published analytic solutions for double stack cold plates.