Abstract
During heat transport through the walls of a hollow sphere, the heat
stream can achieve extreme values. The same processes occur in regular
polyhedrons. We can calculate the maximum heat transfer rate, the
so-called critical heat transfer rate. We must assume here identical
conditions of heat exchange on all internal and external walls of a
regular polyhedron. The transfer rate of heat penetrating through the
regular polyhedron with different heat transfer coefficients on the walls
is called the heat transfer rate with asymmetric boundary conditions. We
show that the heat transfer rate in this case will grow up if we replace
those coefficients with their average values.
Go to article