Physical modeling and parameter identification of a heat exchanger

Proposes a model and the experimental identification of the double pipe countercurrent water-to-water heat exchanger of the Control Laboratory of the Conservatoire National des Arts et Metiers, Paris, France. First a bond graph model is proposed, representing the heat conduction and heat convection occurring in the heat exchanger. Secondly, the identifiability of the obtained set of structural dynamic equations is discussed with respect to the nonlinear model and its linearization. Finally the identification of the physical parameters is performed by using the prediction error method with the linearized model and the distributions of the simulated and measured temperatures along the pipes are compared