A Lumped-Mass Model of Membrane Humidifier for PEMFC

Maintaining the performance of a fuel cell stack requires appropriate management water in membrane electrode. One solution is to apply an external humidifier supply gases. However, operating conditions change continuously, which significantly affects and gas characteristics. A straightforward module needed for integration with system model. In this study, lumped-mass model was used simulate hollow-fiber investigate effects various input on performance. The can account heat transfer vapor transport bundle without losing simplicity. divided into three parts: mass exchanger middle two manifolds at ends exchanger. These components were modeled separately linked each other according flow Simulations performed determine response under both steady-state transient conditions, saturation observed outlet manifold that may affect findings dimensions cathode be improve design control.