Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Jens Wartmann"'
Autor:
Basma Mewafy, Blanca I. Arias Serrano, Jan Wallis, Martin Rohloff, Javier Silva, Olga Ravkina, Robert Kircheisen, Ralf Kriegel, Jens Wartmann, Angela Kruth
Publikováno v:
ECS Meeting Abstracts. :871-871
The Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) mixed ionic electronic conductor (MIEC) is considered to be one of the most promising perovskite-based materials for oxygen transport exhibiting high oxygen permeability. Such oxygen-permeable perovskite membrane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::108a4698842e4a3d771116cef651d44b
https://doi.org/10.1149/ma2022-0218871mtgabs
https://doi.org/10.1149/ma2022-0218871mtgabs
Publikováno v:
Journal of Power Sources. 372:204-211
Porous media like concrete or layers of membrane electrode assemblies (MEA) within fuel cells are affected by a cyclic frost exposure due to different damage mechanisms which could lead to essential degradation of the material. In general, frost dama
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a9643ddb96a89e83e8f37d456355581
https://doi.org/10.1016/j.jpowsour.2017.10.065
https://doi.org/10.1016/j.jpowsour.2017.10.065
Autor:
Jens Wartmann, Felix Schmieder, Jörg König, Mustafa E. Kinaci, Angelika Heinzel, Lars Büttner, Sebastian Burgmann, Jürgen Czarske
Publikováno v:
Journal of Power Sources. 304:155-163
The versatility of fuel cells enables a wide range of applications. Usually fuel cells are combined to stacks such that the reactant supply of the single cells is achieved via a pipe branching system, the manifold. The overall performance significant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0deab810e0906280198154a2cfec3a21
https://doi.org/10.1016/j.jpowsour.2015.11.010
https://doi.org/10.1016/j.jpowsour.2015.11.010
Autor:
Florine Moyon, Jürgen Czarske, Florian Bürkle, Angelika Heinzel, Lukas Feierabend, Jens Wartmann, Lars Büttner
Publikováno v:
Journal of Power Sources. 448:227546
The possibility to use fuel cells as an electrical power source makes them interesting for a wide range of applications. In this work, computational fluid dynamics (CFD) simulations and optical measurements are performed to predict the flow distribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2faaf7134e2eab584904b11013737802
https://doi.org/10.1016/j.jpowsour.2019.227546
https://doi.org/10.1016/j.jpowsour.2019.227546
Autor:
Benedikt Funke, Georg Dura, Florian Letzkus, Jens Wartmann, Moritz Pilaski, Angelika Heinzel, Shen-Huei Sun
Publikováno v:
SPIE Proceedings.
The aim of this work is to fabricate patterned nitride membranes with Si-MEMS-technology as a platform to build up new membrane-electrode-assemblies (MEA) for alkaline fuel cell applications. Two 6-inch wafer processes based on chemical vapor deposit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5584d1960162dce7ac8cdc4fc5b13f7
https://doi.org/10.1117/12.2265689
https://doi.org/10.1117/12.2265689
Autor:
Angelika Heinzel, Jens Wartmann
Publikováno v:
Wasserstoff und Brennstoffzelle ISBN: 9783662533598
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a95ed21b4afe76d2e5715e27b0a05ac9
https://doi.org/10.1007/978-3-662-53360-4_9
https://doi.org/10.1007/978-3-662-53360-4_9
Publikováno v:
Hydrogen and Fuel Cell ISBN: 9783662449714
Portable fuel cells are under development at present for remote off-grid applications, the first niche markets having notable numbers of pieces are military and leisure applications of the direct methanol fuel cell DMFC in the power range up to sever
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88e1f02d64a668a7a0303b9459884906
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85018871032
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85018871032
Publikováno v:
Energy Procedia. 28:88-101
A single-channel DMFC is constructed that allows for flow measurements at the anode side as well as detailed time–resolved cell-voltage measurement. The coherence between flow and bubble clogging and slug movement can be investigated without parasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa84dd7577d20bd5f96ef0b00e606526
https://doi.org/10.1016/j.egypro.2012.08.043
https://doi.org/10.1016/j.egypro.2012.08.043
Publikováno v:
La Houille Blanche. 97:55-61
The investigation of the gas flow in a working fuel cell by means of optical measurement techniques like micro Particle-Image Velocimetry (µPIV) requires the generation of suitable tracer particles. In this work the analysis of tracer particle chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b46ff91b407f5213a53609fd1113ea9c
https://doi.org/10.1051/lhb/2011041
https://doi.org/10.1051/lhb/2011041
Publikováno v:
tm - Technisches Messen. 78:253-259
Zusammenfassung Es wird ein Messverfahren vorgestellt, mit dem sich die Geschwindigkeitsverteilung einer Mikrokanalströmung in der Gas- oder Flüssigphase bestimmen lässt. Diese Micro Particle-Image-Velocimetry (μPIV) genannte Technik ist ein ber
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91f460d4beec1ac54ecfbac4dd95e6af
https://doi.org/10.1524/teme.2011.0136
https://doi.org/10.1524/teme.2011.0136