Steady-state modelling of heat exchangers for refrigeration applications

This work deals with the steady state modelling of counterflow brazed plate heat exchangers for refrigeration applications. The main challenges of the stationary approach are the definition and tuning of the iterative algorithm required for the non linear system of equations. The model is experimentally validated, and a variable step size gradient descend algorithm is evaluated to reduce the number of iterations carried out. Some tuning parameters are defined in the framework of an optimization procedure to enhance the accuracy of the model