TY  - CONF
A1  - Funke, Harald
A1  - Beckmann, Nils
A1  - Keinz, Jan
A1  - Horikawa, Atsushi
T1  - 30 years of dry low NOx micromix combustor research for hydrogen-rich fuels: an overview of past and present activities
T2  - Conference Proceedings Turbo Expo: Power for Land, Sea and Air, Volume 4B: Combustion, Fuels, and Emissions
N2  - The paper presents an overview of the past and present of low-emission combustor research with hydrogen-rich fuels at Aachen University of Applied Sciences. In 1990, AcUAS started developing the Dry-Low-NOx Micromix combustion technology. Micromix reduces NOx emissions using jet-in-crossflow mixing of multiple miniaturized fuel jets and combustor air with an inherent safety against flashback. At first, pure hydrogen as fuel was investigated with lab-scale applications. Later, Micromix prototypes were developed for the use in an industrial gas turbine Honeywell/Garrett GTCP-36-300, proving low NOx characteristics during real gas turbine operation, accompanied by the successful definition of safety laws and control system modifications. Further, the Micromix was optimized for the use in annular and can combustors as well as for fuel-flexibility with hydrogen-methane-mixtures and hydrogen-rich syngas qualities by means of extensive experimental and numerical simulations. In 2020, the latest Micromix application will be demonstrated in a commercial 2 MW-class gas turbine can-combustor with full-scale engine operation. The paper discusses the advances in Micromix research over the last three decades.
KW  - Micromix
KW  - Hydrogen
KW  - Fuel-flexibility
KW  - NOx
KW  - Emissions
Y1  - 2021
UR  - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/9520
SN  - 978-0-7918-8413-3
N1  - ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition
September 21–25, 2020, Virtual, Online
N1  - Paper No. GT2020-16328, V04BT04A069
PB  - ASME
CY  - New York, NY
ER  -