Numerical and experimental evaluation of a dual-fuel dry-low-NO micromix combustor for industrial gas turbine applications

Funke, H, Beckmann, N, Keinz, J and Abanteriba, S 2017, 'Numerical and experimental evaluation of a dual-fuel dry-low-NO micromix combustor for industrial gas turbine applications', in Proceedings of the American Society of Mechanical Engineers Expo 2017: Turbomachinery Technical Conference and Exposion (GT2017) - Volume 4B, Charlotte, United States, 26-30 June 2017, pp. 1-12.


Document type: Conference Paper
Collection: Conference Papers

Title Numerical and experimental evaluation of a dual-fuel dry-low-NO micromix combustor for industrial gas turbine applications
Author(s) Funke, H
Beckmann, N
Keinz, J
Abanteriba, S
Year 2017
Conference name GT2017
Conference location Charlotte, United States
Conference dates 26-30 June 2017
Proceedings title Proceedings of the American Society of Mechanical Engineers Expo 2017: Turbomachinery Technical Conference and Exposion (GT2017) - Volume 4B
Publisher American Society of Mechanical Engineers
Place of publication New York, United States
Start page 1
End page 12
Total pages 12
Abstract The Dry-Low-NOx (DLN) Micromix combustion technology has been developed originally as a low emission alternative for industrial gas turbine combustors fueled with hydrogen. Currently the ongoing research process targets flexible fuel operation with hydrogen and syngas fuel. The non-premixed combustion process features jet-incrossflow-mixing of fuel and oxidizer and combustion through multiple miniaturized flames. The miniaturization of the flames leads to a significant reduction of NOx emissions due to the very short residence time of reactants in the flame. The paper presents the results of a numerical and experimental combustor test campaign. It is conducted as part of an integration study for a dual-fuel (H2 and H2/CO 90/10 Vol.%) Micromix combustion chamber prototype for application under full scale, pressurized gas turbine conditions in the auxiliary power unit Honeywell Garrett GTCP 36-300. In the presented experimental studies, the integrationoptimized dual-fuel Micromix combustor geometry is tested at atmospheric pressure over a range of gas turbine operating conditions with hydrogen and syngas fuel. The experimental investigations are supported by numerical combustion and flow simulations. For validation, the results of experimental exhaust gas analyses are applied. Despite the significantly differing fuel characteristics between pure hydrogen and hydrogen-rich syngas the evaluated dual-fuel Micromix prototype shows a significant low NOx performance and high combustion efficiency. The combustor features an increased energy density that benefits manufacturing complexity and costs.
Subjects Energy Generation, Conversion and Storage Engineering
Keyword(s) Dry-Low-NOx
duel-fuel
volume fraction
mole fraction
fuel utilization factor
DOI - identifier 10.1115/GT2017-64795
Copyright notice © 2017 ASME
ISBN 9780791850961
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