GMDH ANN to optimise model development: Prediction of the pressure drop and the heat transfer coefficient during condensation within mini-channels

The Group Method of Data Handling was applied to the experimental data set providing the information about which magnitudes are the minimum required (e.g: mass velocity, fluid properties, tube geometry, hydraulic diameter or vapour quality change) to have the best prediction tool for frictional pressure drop and heat transfer coefficient with the minimum number of variables.