20.500.12556/RUL-133750 Physically motivated water modeling in control-oriented polymer electrolyte membrane fuel cell stack models Polymer electrolyte membrane fuel cells (PEMFCs) are prone to membrane dehydration and liquid water flooding, negatively impacting their performance and lifetime. Therefore, PEMFCs require appropriate water management, which makes accurate water modeling indispensable. Unfortunately, available control-oriented models only replicate individual water-related aspects or use oversimplistic approximations. This paper resolves this challenge by proposing, for the first time, a control-oriented PEMFC stack model focusing on physically motivated water modeling, which covers phase change, liquid water removal, membrane water uptake, and water flooding effects on the electrochemical reaction. Parametrizing the resulting model with measurement data yielded the fitted model. The parameterized model delivers valuable insight into the water mechanisms, which were thoroughly analyzed. In summary, the proposed model enables the derivation of advanced control strategies for efficient water management and mitigation of the degradation phenomena of PEMFCs. Additionally, the model provides the required accuracy for control applications while maintaining the necessary computational efficiency. fuel cells polymer electrolyte membrane control-oriented model physically motivated model water modeling liquid water effects analytical differentiable model gorivne celice protonska izmenjevalna membrana staranje platine mehanistično osnovan model vodno modeliranje pospešeni testi staranja true false true Angleški jezik Slovenski jezik Članek v reviji 2021-12-14 08:06:38 2021-12-14 08:06:42 2022-09-13 03:52:30 0000-00-00 00:00:00 2021 0 0 20 str. iss. 22, art. 7693 Vol. 14 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.352.6:669.231:004.94 1996-1073 10.3390/en14227693 85388035 RAZ_Du_Zhang_Peng_2021.pdf RAZ_Du_Zhang_Peng_2021.pdf 1 00596F19B2F20BE371E8DE23EFDBAB89 e973d2eb88235a019b9bd18c165e750196a78692c66383c807f9b57702e5fb13 5605adc6-5cad-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152089 https://www.mdpi.com/1996-1073/14/22/7693 1 45484aad-5cac-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152088 Fakulteta za strojništvo 0 0 0