The cooling of working rolls is a critical factor of the hot rolling process,
to limit roll surface wear and to control roll thermal deformation.
An inverse heat conduction approach and an experimental
method for measurement of heat transfer coefficient are presented.
Heat transfer in the sprayed area is dependent on a large number of
factors, such as surface temperature, roll velocity, local pressure,
coolant jets inclination and interference of multiple sprays. The experimental
approach is the only reliable method to get a precise description
of the cooling of industrial working rolls.