Analysis of Surrogate Models for Vapour Transport and Distribution in a Hollow Fibre Membrane Humidifier

To achieve high efficiency and low degradation of a polymer electrolyte fuel cell (PEMFC), it is necessary to maintain an appropriate level humidification in the membrane. Thus, membrane humidifiers are typically used PEMFC systems. Parameter studies important evaluate under various operating conditions reduce amount physical tests. However, simulative computationally expensive when using detailed models. computational cost, surrogate models set up. In our study, 3D fluid dynamics (CFD) model hollow fibre humidifier presented validated measurement data. Based on results CFD model, constructed proper orthogonal decomposition (POD) combination with different interpolation methods. models, their compared against reference solutions from model. Our show that Halton design combined thin-plate-spline most accurate Its normalised mean absolute error for 18 test points predicting water mass fraction 0.58%. Furthermore, demonstrated POD can be initialise calculations thus accelerate calculation steady state solutions.