000906542 001__ 906542
000906542 005__ 20240712113249.0
000906542 0247_ $$2Handle$$a2128/30868
000906542 0247_ $$2URN$$aurn:nbn:de:0001-2022040531
000906542 020__ $$a978-3-95806-611-3
000906542 037__ $$aFZJ-2022-01506
000906542 041__ $$aEnglish
000906542 1001_ $$0P:(DE-Juel1)186729$$aShi, Yan$$b0$$eCorresponding author$$ufzj
000906542 245__ $$aStationary and Transient Behaviour of Polymer Electrolyte Fuel Cells$$f- 2021-12-17
000906542 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2022
000906542 300__ $$aviii, 172 S.
000906542 3367_ $$2DataCite$$aOutput Types/Dissertation
000906542 3367_ $$0PUB:(DE-HGF)3$$2PUB:(DE-HGF)$$aBook$$mbook
000906542 3367_ $$2ORCID$$aDISSERTATION
000906542 3367_ $$2BibTeX$$aPHDTHESIS
000906542 3367_ $$02$$2EndNote$$aThesis
000906542 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1648132345_11907
000906542 3367_ $$2DRIVER$$adoctoralThesis
000906542 4900_ $$aSchriften des Forschungszentrums Jülich. Reihe Energie & Umwelt / Energy & Environment$$v567
000906542 502__ $$aRWTH Aachen, Diss., 2021$$bDissertation$$cRWTH Aachen$$d2021
000906542 520__ $$aThe Low Temperature Polymer Electrolyte Fuel Cell (LT-PEFC) is a promising alternative power source for automotive applications that offers a relatively simple system level, high efficiency, and completely harmless emissions. Fuel cell operations are complex processes that can be influenced by numerous different operating conditions. This thesis, therefore, focuses on the analysis of the impact of different operating conditions on, both static and dynamic behavior of the LT-PEFC. An accuracy study is first performed to evaluate the repeatability and reproducibility of the in-house assembled LT-PEFCs employed in the experiments. Four test cells are assembled and tested under the same operating conditions. It is found that the repeatability and reproducibility of the test cells are better when higher stoichiometry ratios and lower current density are applied in the tests. Overall, the LT-PEFCs used in the experiments are characterized by a high level of accuracy. Various operating parameters are considered in the cell static behavior analysis. With the help of split-plot design, cell orientation, cell temperature, cathodic stoichiometric ratio and backpressure are determined to be the most statistically significant factors for the cell static behavior. Furthermore, the optimal cell performance and corresponding parameter settings are determined via the response surface methodology (RSM). Voltage overshoot and undershoot behavior are used to characterize the cell dynamic behavior. Using split-plot design, the load change step, cell temperature, cathodic stoichiometric ratio and backpressure are selected as the most significant factors for both the voltage undershoot and overshoot behaviors. Additionally, the effect of load change ramp on voltage undershoot and overshoot is determined. The result suggests that the load change with the ramp can significantly reduce the undershoot and overshoot magnitudes. Moreover, the load change with the ramp has a limited impacton the average pressure drop and the ohmic resistance of the test cell.
000906542 536__ $$0G:(DE-HGF)POF4-1231$$a1231 - Electrochemistry for Hydrogen (POF4-123)$$cPOF4-123$$fPOF IV$$x0
000906542 8564_ $$uhttps://juser.fz-juelich.de/record/906542/files/Energie_Umwelt_567.pdf$$yOpenAccess
000906542 909CO $$ooai:juser.fz-juelich.de:906542$$pdnbdelivery$$pVDB$$pdriver$$purn$$popen_access$$popenaire
000906542 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000906542 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0
000906542 9141_ $$y2022
000906542 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)186729$$aForschungszentrum Jülich$$b0$$kFZJ
000906542 9131_ $$0G:(DE-HGF)POF4-123$$1G:(DE-HGF)POF4-120$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-1231$$aDE-HGF$$bForschungsbereich Energie$$lMaterialien und Technologien für die Energiewende (MTET)$$vChemische Energieträger$$x0
000906542 920__ $$lyes
000906542 9201_ $$0I:(DE-Juel1)IEK-14-20191129$$kIEK-14$$lElektrochemische Verfahrenstechnik$$x0
000906542 9801_ $$aFullTexts
000906542 980__ $$aphd
000906542 980__ $$aVDB
000906542 980__ $$aUNRESTRICTED
000906542 980__ $$abook
000906542 980__ $$aI:(DE-Juel1)IEK-14-20191129
000906542 981__ $$aI:(DE-Juel1)IET-4-20191129