Abstract: In this paper, the feedforward-feedback control for an experimental heat exchanger has been studied by real tests and analog computer simulation. The system design, parameters settings of the feedforward dynamic compensator and improvements in control behavior are described. In addition, applications of dynamic feedforward-feedback control to the continuously sterilized tower, the power-boiler and the fractionating column of crude oil have been investigated. The corrections of the feedback wrong action due to the false controlled variables by means of dynamic feedforward compensation and the abnormal feedforward control schemes are proposed.