Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Stefan Pofahl"'
Autor:
Priscilla Caliandro, Pierpaolo Polverino, Marco Gallo, Bertrand Morel, Stefan Pofahl, J. P. Ouweltjes, Jan Van herle, Alexandra Ploner, Pavle Boškoski, Stefan Diethelm, Boštjan Dolenc, Antti Pohjoranta, Aki Nieminen, Andrea Leonardi, Francesco Galiano, Carlo Tanzi, Julie Mougin
Publikováno v:
Mougin, J, Morel, B, Ploner, A, Caliandro, P, Van Herle, J, Boškoski, P, Dolenc, B, Gallo, M, Polverino, P, Pohjoranta, A, Nieminen, A, Pofahl, S N, Ouweltjes, J P, Diethelm, S, Leonardi, A, Galiano, F & Tanzi, C 2019, ' Monitoring and diagnostics of SOFC stacks and systems ', ECS Transactions, vol. 91, no. 1, pp. 731-743 . https://doi.org/10.1149/09101.0731ecst
While high performance of SOFC systems has already been achieved, there is still a need to increase the stack lifetime, while decreasing the system's total cost of ownership, both being linked. The increase in lifetime includes the minimization of pe
Autor:
Stefan Pofahl, Michael Preininger, Vanja Subotić, Bernhard Stoeckl, Vincent Lawlor, Christoph Schluckner, Hartmuth Schroettner, Christoph Hochenauer
Publikováno v:
Energy Conversion and Management. 178:343-354
Carbon deposition is one of the major degradation sources, which reduces the activity of solid oxide fuel cells (SOFC) and it can even cause irreversible cell degradation. In order to counteract this phenomenon and thus to extend the SOFC lifetime, d
Autor:
Vincent Lawlor, Stefan Pofahl, Vanja Subotić, Philipp Harter, Qingping Fang, Christoph Hochenauer, Norbert H. Menzler, Hartmuth Schroettner
Publikováno v:
Applied energy 277, 115603-(2020). doi:10.1016/j.apenergy.2020.115603
The key advantage of solid oxide fuel cells (SOFC) – high fuel flexibility – still remains the main challenge disturbing their stability, reliability and durability. Specific operating conditions induce and accelerate various degradation mechanis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a728d42f010d994c99be49b39c56f7b5
https://hdl.handle.net/2128/25493
https://hdl.handle.net/2128/25493
Autor:
Christoph Schluckner, V. Lawlor, Stefan Pofahl, Hartmuth Schroettner, David Reichholf, Bernhard Stoeckl, Christoph Hochenauer, Vanja Subotić
Publikováno v:
ECS Transactions. 78:2451-2460
Solid oxide fuel cells (SOFCs) present an attractive and innovative technology for environmentally-friendly electricity and heat generation. Their high operating temperatures and the excellent catalytic performance make SOFCs the most efficient fuel
Autor:
Norbert H. Menzler, Thomas Thaller, Vanja Subotić, Stefan Pofahl, Vincent Lawlor, Christoph Hochenauer
Publikováno v:
Amsterdam [u.a.] : Elsevier, Energy procedia 158, 2329-2334 (2019). doi:10.1016/j.egypro.2019.01.271
Energy procedia 158, 2329-2334 (2019). doi:10.1016/j.egypro.2019.01.271
Energy procedia 158, 2329-2334 (2019). doi:10.1016/j.egypro.2019.01.271
In order to ensure the continuous operation of (i) solid oxide fuel cells (SOFC) as the main parts of auxiliary power units (APUs) or stationary power generators, and (ii) solid oxide electrolysis cells (SOEC) as highly-efficient systems for advanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::697a68d74bba9e98b0e1ef54dfadffa7
https://hdl.handle.net/2128/22146
https://hdl.handle.net/2128/22146
Autor:
Stefan Pofahl, V. Lawlor, Vanja Subotić, Christoph Schluckner, Bernhard Stoeckl, Hartmuth Schroettner, Christoph Hochenauer
Publikováno v:
ECS Meeting Abstracts. :209-209
Solid oxide fuel cells are highly efficient units, which directly convert the chemical energy of gaseous fuels into electrical energy without additional conversion steps. The overall efficiency can be increased by using heat losses occurring during t
Microstructure investigation and magnetic study of permalloy thin films grown by thermal evaporation
Autor:
A. Guittoum, Volker Neu, Sabrina Lamrani, Stefan Pofahl, M. Hemmous, Rudolf Schäfer, Nassima Benbrahim
Publikováno v:
The European Physical Journal Applied Physics. 74:30302
We study the effect of thickness on the structural and magnetic properties of permalloy thin films, evaporated on glass substrate. The films thicknesses range from 16 to 90 nm. From X-ray diffraction spectra analysis, we show that the thinner films p
Publikováno v:
Power Plant and Power Systems Control symposium
Power Plant and Power Systems Control symposium, Sep 2012, Toulouse, France
Scopus-Elsevier
Wang, K, Pera, M C, Hissel, D, Yousfi Steiner, N, Pohjoranta, A & Pofahl, S 2012, SOFC modelling based on discrete Bayesian network for system diagnosis use . in M Fadel & S Caux (eds), 8th Power Plant and Power System Control Symposium . Elsevier, IFAC Proceedings Volumes, no. 21, vol. 45, pp. 675-680, 8th Power Plant and Power System Control Symposium, PPPSC 2012, Toulouse, France, 2/09/12 . https://doi.org/10.3182/20120902-4-FR-2032.00118
Power Plant and Power Systems Control symposium, Sep 2012, Toulouse, France
Scopus-Elsevier
Wang, K, Pera, M C, Hissel, D, Yousfi Steiner, N, Pohjoranta, A & Pofahl, S 2012, SOFC modelling based on discrete Bayesian network for system diagnosis use . in M Fadel & S Caux (eds), 8th Power Plant and Power System Control Symposium . Elsevier, IFAC Proceedings Volumes, no. 21, vol. 45, pp. 675-680, 8th Power Plant and Power System Control Symposium, PPPSC 2012, Toulouse, France, 2/09/12 . https://doi.org/10.3182/20120902-4-FR-2032.00118
International audience; We propose in this paper a diagnosis method that is aimed to detect and isolate SOFC system fault by using the FC stack as a sensor. A discrete Bayesian network (BN) was established to illustrate the input-output causal relati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::038ca8a1188fa19c30e26babc8021491
https://doi.org/10.3182/20120902-4-FR-2032.00118
https://doi.org/10.3182/20120902-4-FR-2032.00118
Autor:
Cesare Pianese, Daniel Hissel, Maurizio Guida, P. Moçotéguy, Antti Pohjoranta, Kun Wang, Marie-Cécile Péra, Fabio Postiglione, Angelo Esposito, Stefan Pofahl
Publikováno v:
International Conference on Fuel Cell Science, Engineering and Technology
International Conference on Fuel Cell Science, Engineering and Technology, Jun 2010, Brooklyn, New York, United States
Esposito, A, Mocoteguy, P, Postiglione, F, Guida, M, Pianese, C, Pohjoranta, A, Wang, K, Hissel, D, Pera, M C & Pofahl, S 2012, Experimental test plan and data analysis based on the design of experiment methodology . in ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2012 6th International Conference on Energy Sustainability . American Society of Mechanical Engineers (ASME), pp. 293-302, ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology, San Diego, California, United States, 23/07/12 . https://doi.org/10.1115/FuelCell2012-91114
International Conference on Fuel Cell Science, Engineering and Technology, Jun 2010, Brooklyn, New York, United States
Esposito, A, Mocoteguy, P, Postiglione, F, Guida, M, Pianese, C, Pohjoranta, A, Wang, K, Hissel, D, Pera, M C & Pofahl, S 2012, Experimental test plan and data analysis based on the design of experiment methodology . in ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2012 6th International Conference on Energy Sustainability . American Society of Mechanical Engineers (ASME), pp. 293-302, ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology, San Diego, California, United States, 23/07/12 . https://doi.org/10.1115/FuelCell2012-91114
The development of fault diagnostics for fuel cell (FC) stacks and systems can increase their lifetime and therefore their overall efficiency. The development of such techniques often requires a reliable computational FC stack or system model. Given
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a58dde59e8f9919494205f35e51544c1
https://hal.archives-ouvertes.fr/hal-03223617
https://hal.archives-ouvertes.fr/hal-03223617