Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Christoph Hassa"'
Publikováno v:
Fluids, Vol 4, Iss 4, p 188 (2019)
To improve the turn-down ratio of a lean combustor, which has the greatest potential for reducing NOx emissions from jet engines, fuel staging is commonly employed. To further extend the stable operation range, air staging with a fluidic element is a
Externí odkaz:
https://doaj.org/article/80fe0c90482641089905863f5cbc8ba2
Publikováno v:
Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels.
The production and emission of soot from Kerosene JET-A1 and a blend of a different JET-A1 and 30% HEFA was investigated in a realistic multisector combustor of Rolls-Royce Deutschland. Soot concentration measurements were performed at the exit as we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce94577420bafa21eb50d496872d19e6
https://doi.org/10.1115/gt2020-14462
https://doi.org/10.1115/gt2020-14462
Autor:
Christoph Hassa, J. Gregory, T. Soworka, Thomas Behrendt, F. di Mare, Eggert Magens, Johannes Heinze, S. Ballantyne, Michael Schroll
Publikováno v:
Volume 4B: Combustion, Fuels, and Emissions.
Future rich-burn/quick-quench/lean-burn (RQL) burners for aero engines face the challenge to further reduce the emission of soot. Alternative ways of fuel injection are therefore in the focus of modern RQL combustion systems. This contribution aims t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f594959dbb18a0ad7cc72e37f639270c
https://doi.org/10.1115/gt2019-91244
https://doi.org/10.1115/gt2019-91244
Autor:
Marco Zedda, Epaminondas Mastorakos, Christoph Hassa, Johannes Heinze, Andrea Giusti, Eggert Magens
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 140
In this work, a single sector lean burn model combustor operating in pilot only mode has been investigated using both experiments and computations with the main objective of analyzing the flame structure and soot formation at conditions relevant to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::172027ebc6765f6c613c4f4dfb341df0
https://doi.org/10.1115/1.4038025
https://doi.org/10.1115/1.4038025
Autor:
Christoph Hassa, Johannes Heinze, Imon-Kalyan Bagchi, Eggert Magens, Michael Schroll, Ulrich Meier
Two RR Lean Direct Injection (LDI) injector versions with different amounts of pilot swirl were investigated. Experiments, performed at elevated pressure and temperature, corresponding to engine conditions at idle include Mie scattering. LII and abso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8f808bac16aba3c72f23746e8d0006b
https://elib.dlr.de/113306/
https://elib.dlr.de/113306/
Autor:
Christoph Hassa, Eggert Magens, Marco Zedda, Epaminondas Mastorakos, Johannes Heinze, Andrea Giusti
Publikováno v:
Volume 4A: Combustion, Fuels and Emissions.
In this work a single sector lean burn model combustor operating in pilot only mode has been investigated using both experiments and computations with the main objective of analyzing the flame structure and soot formation at conditions relevant to ae
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c0e68d6c3405093eb0e7fcc6f79fac2
https://doi.org/10.1115/gt2017-63620
https://doi.org/10.1115/gt2017-63620
Autor:
Ulrich Meier, Christoph Hassa, Imon-Kalyan Bagchi, Ulrich Doll, Guido Stockhausen, Johannes Heinze
High OPR engine cycles for reduced NOx emissions will generate new aggravated requirements and boundary conditions by implementing low emission combustion technologies into advanced engine architectures. Lean burn combustion systems will have a signi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6a1970525a6886aab2a6f8af34fcaab
https://elib.dlr.de/105862/
https://elib.dlr.de/105862/
Autor:
Guido Stockhausen, Ulrich Meier, Christian Willert, Michael Schroll, Imon-Kalyan Bagchi, Ulrich Doll, Christoph Hassa
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 139
High OPR engine cycles for reduced NOx emissions will generate new aggravated requirements and boundary conditions by implementing low emission combustion technologies into advanced engine architectures. Lean burn combustion systems will have a signi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cea1f0a0fc106cce334fee5411d01df4
https://doi.org/10.1115/1.4034040
https://doi.org/10.1115/1.4034040
Publikováno v:
CEAS Aeronautical Journal. 3:45-53
This paper illustrates the utilisation of an optically accessible high-pressure sector test rig in combination with optical test methods as part of the development process of a lean injection combustion concept. First experimental results from a new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a48e717460d21bbcdd35f952cb3ad120
https://doi.org/10.1007/s13272-012-0042-z
https://doi.org/10.1007/s13272-012-0042-z
Autor:
Christoph Hassa, Umesh Bhayaraju
Publikováno v:
Atomization and Sprays. 19:1147-1169
Liquid sheet breakup of a prefilming and nonprefilming airblast atomizer is investigated experimentally at ambient temperatures and elevated pressures of air. The breakup is studied by High-Speed flow visualization. The visualizations show the differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8a2ad7f4df99de44b02f768f67c9c69
https://doi.org/10.1615/atomizspr.v19.i12.50
https://doi.org/10.1615/atomizspr.v19.i12.50