Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Caroline Willich"'
Publikováno v:
Aerospace, Vol 11, Iss 3, p 176 (2024)
The climate impact of aviation can be reduced using powertrains based on hydrogen fuel cells and batteries. Combining both technologies in a direct-hybrid without a DC/DC converter is a promising approach for light-weight systems. Depending on the po
Externí odkaz:
https://doaj.org/article/ef66e16005ed456ea6ac775f3c2254f3
Publikováno v:
Aerospace, Vol 11, Iss 1, p 71 (2024)
Hybrid electric aircraft with a powertrain based on fuel cells and batteries can reduce climate-active emissions in aviation. In a direct hybrid powertrain, the fuel cell and the battery are connected in parallel, without a DC/DC converter balancing
Externí odkaz:
https://doaj.org/article/ae87f01fa171481b9668333ebdfeaa2b
Autor:
Sumantra Bhattacharya, Dimosthenis Anagnostou, Patrick Schwane, Christiane Bauer, Josef Kallo, Caroline Willich
Publikováno v:
Energies, Vol 15, Iss 15, p 5495 (2022)
The development of fully electric and hybrid electric aircraft using fuel cells and batteries has lately received much attention since the technology can contribute to achieving an emission-free world. For hybridisation of fuel cells and batteries, t
Externí odkaz:
https://doaj.org/article/5170271d52cb404ba5ef9a8e13aa4376
Autor:
Jonas Schröter, Daniel Frank, Valentin Radke, Christiane Bauer, Josef Kallo, Caroline Willich
Publikováno v:
Energies, Vol 15, Iss 8, p 2896 (2022)
For the optimal high-efficiency operation of a PEM fuel cell system, the temperature, pressure, humidity and mass flow of the supplied air must be tuned to the fuel cell stack requirements. Especially for aircraft applications, this requires a thorou
Externí odkaz:
https://doaj.org/article/d29d1ed8cf094a6dbcefda1e68dbd899
Publikováno v:
Energies, Vol 14, Iss 21, p 7350 (2021)
Hybrid electric aircraft offer the potential to decrease emissions from air travel. A new hybrid concept is proposed for a fuel cell-battery hybrid aircraft. In contrast to existing hybrids, the proposed concept puts a battery directly on the AC phas
Externí odkaz:
https://doaj.org/article/60c4aaa56f784d0da493542d0609c4a4
Publikováno v:
International Journal of Hydrogen Energy. 46:21151-21159
Low ambient pressures at elevated flight altitudes lead to power losses in fuel cell powered aircrafts. As countermeasure ambient air can be pressurized with a suitable fuel cell air supply system. In this study the influence of low ambient pressures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75e6d6477b4987db9629065e7f773665
https://doi.org/10.1016/j.ijhydene.2021.03.218
https://doi.org/10.1016/j.ijhydene.2021.03.218
Autor:
Sumantra Bhattacharya, Luc-Andre Gregoire, Josef Kallo, Marija Stevic, Mayank Garg, Caroline Willich
Publikováno v:
2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9bb112ab2b6e29f15600f0c54cd89e6
https://doi.org/10.1109/pedg54999.2022.9923153
https://doi.org/10.1109/pedg54999.2022.9923153
Publikováno v:
ACS omega. 7(34)
To have more sustainable aviation, ways to reduce lead and gaseous emissions are important and currently large research topics. As further efficiency improvements for internal combustion engines (ICE) have reached a limit, and the research and develo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16accf58c7e9700a93cc22171a93c3c3
https://pubmed.ncbi.nlm.nih.gov/36061725
https://pubmed.ncbi.nlm.nih.gov/36061725
Publikováno v:
Electronics; Volume 11; Issue 9; Pages: 1382
Efficient and robust power electronic converters are vital to the success of the electrification of aircraft. Especially, low voltage auxiliary converters, which usually supply high current and low voltage loads, are not readily available industriall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46b8eb558287fe4fc965bfb97c544077
Autor:
Tobias Graf, Robin Fonk, Jonas Schröter, Pia Hoenicke, Christiane Bauer, Josef Kallo, Caroline Willich
Publikováno v:
Journal of Energy Storage. 56:105999
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe386c36d6f7445605945389fe037531
https://doi.org/10.1016/j.est.2022.105999
https://doi.org/10.1016/j.est.2022.105999